diff --git a/Android.bp b/Android.bp
index 432c7fc..f2d0d94 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,5 +1,8 @@
 package {
     default_applicable_licenses: ["Android-Apache-2.0"],
+    default_visibility: [
+        "//build/soong:__subpackages__",
+    ],
 }
 
 subdirs = [
@@ -23,6 +26,8 @@
     srcs: [
         "doc.go",
     ],
+    // Used by plugins, though probably shouldn't be.
+    visibility: ["//visibility:public"],
 }
 
 //
@@ -40,6 +45,7 @@
             enabled: true,
         },
     },
+    defaults_visibility: ["//visibility:public"],
 }
 
 //
@@ -51,6 +57,7 @@
     vendor: true,
     recovery_available: true,
     min_sdk_version: "apex_inherit",
+    visibility: ["//visibility:public"],
 }
 
 cc_genrule {
@@ -75,6 +82,7 @@
     cmd: "$(location) -s $(out) $(in)",
     srcs: [":linker"],
     out: ["linker.s"],
+    visibility: ["//bionic/libc"],
 }
 
 cc_genrule {
@@ -99,11 +107,18 @@
     cmd: "$(location) -T $(out) $(in)",
     srcs: [":linker"],
     out: ["linker.script"],
+    visibility: ["//visibility:public"],
 }
 
 // Instantiate the dex_bootjars singleton module.
 dex_bootjars {
     name: "dex_bootjars",
+    visibility: ["//visibility:public"],
+}
+
+art_boot_images {
+    name: "art_boot_images",
+    visibility: ["//art:__subpackages__"],
 }
 
 // Pseudo-test that's run on checkbuilds to ensure that get_clang_version can
@@ -123,6 +138,7 @@
 // container for apex_contributions selected using build flags
 all_apex_contributions {
     name: "all_apex_contributions",
+    visibility: ["//visibility:public"],
 }
 
 product_config {
diff --git a/aconfig/aconfig_declarations.go b/aconfig/aconfig_declarations.go
index 250fd56..d9a862c 100644
--- a/aconfig/aconfig_declarations.go
+++ b/aconfig/aconfig_declarations.go
@@ -88,6 +88,13 @@
 		ctx.PropertyErrorf("container", "missing container property")
 	}
 
+	// treating system_ext as system partition as we are combining them as one container
+	// TODO remove this logic once we start enforcing that system_ext cannot be specified as
+	// container in the container field.
+	if module.properties.Container == "system_ext" {
+		module.properties.Container = "system"
+	}
+
 	// Add a dependency on the aconfig_value_sets defined in
 	// RELEASE_ACONFIG_VALUE_SETS, and add any aconfig_values that
 	// match our package.
diff --git a/aconfig/aconfig_value_set.go b/aconfig/aconfig_value_set.go
index 7ba76c0..d72ec48 100644
--- a/aconfig/aconfig_value_set.go
+++ b/aconfig/aconfig_value_set.go
@@ -16,6 +16,9 @@
 
 import (
 	"android/soong/android"
+	"fmt"
+	"strings"
+
 	"github.com/google/blueprint"
 )
 
@@ -27,6 +30,9 @@
 	properties struct {
 		// aconfig_values modules
 		Values []string
+
+		// Paths to the Android.bp files where the aconfig_values modules are defined.
+		Srcs []string
 	}
 }
 
@@ -56,7 +62,35 @@
 
 var valueSetProviderKey = blueprint.NewProvider[valueSetProviderData]()
 
+func (module *ValueSetModule) FindAconfigValuesFromSrc(ctx android.BottomUpMutatorContext) map[string]android.Path {
+	moduleDir := ctx.ModuleDir()
+	srcs := android.PathsForModuleSrcExcludes(ctx, module.properties.Srcs, []string{ctx.BlueprintsFile()})
+
+	aconfigValuesPrefix := strings.Replace(module.Name(), "aconfig_value_set", "aconfig-values", 1)
+	moduleNamesSrcMap := make(map[string]android.Path)
+	for _, src := range srcs {
+		subDir := strings.TrimPrefix(src.String(), moduleDir+"/")
+		packageName, _, found := strings.Cut(subDir, "/")
+		if found {
+			moduleName := fmt.Sprintf("%s-%s-all", aconfigValuesPrefix, packageName)
+			moduleNamesSrcMap[moduleName] = src
+		}
+	}
+	return moduleNamesSrcMap
+}
+
 func (module *ValueSetModule) DepsMutator(ctx android.BottomUpMutatorContext) {
+
+	// TODO: b/366285733 - Replace the file path based solution with more robust solution.
+	aconfigValuesMap := module.FindAconfigValuesFromSrc(ctx)
+	for _, moduleName := range android.SortedKeys(aconfigValuesMap) {
+		if ctx.OtherModuleExists(moduleName) {
+			ctx.AddDependency(ctx.Module(), valueSetTag, moduleName)
+		} else {
+			ctx.ModuleErrorf("module %q not found. Rename the aconfig_values module defined in %q to %q", moduleName, aconfigValuesMap[moduleName], moduleName)
+		}
+	}
+
 	deps := ctx.AddDependency(ctx.Module(), valueSetTag, module.properties.Values...)
 	for _, dep := range deps {
 		_, ok := dep.(*ValuesModule)
diff --git a/aconfig/aconfig_value_set_test.go b/aconfig/aconfig_value_set_test.go
index 32c31cb..3b7281e 100644
--- a/aconfig/aconfig_value_set_test.go
+++ b/aconfig/aconfig_value_set_test.go
@@ -18,6 +18,8 @@
 	"testing"
 
 	"android/soong/android"
+
+	"github.com/google/blueprint"
 )
 
 func TestAconfigValueSet(t *testing.T) {
@@ -41,3 +43,112 @@
 	depData, _ := android.OtherModuleProvider(result, module, valueSetProviderKey)
 	android.AssertStringEquals(t, "AvailablePackages", "blah.aconfig_values", depData.AvailablePackages["foo.package"][0].String())
 }
+
+func TestAconfigValueSetBpGlob(t *testing.T) {
+	result := android.GroupFixturePreparers(
+		PrepareForTestWithAconfigBuildComponents,
+		android.FixtureMergeMockFs(
+			map[string][]byte{
+				// .../some_release/android.foo/
+				"some_release/android.foo/Android.bp": []byte(`
+				aconfig_values {
+					name: "aconfig-values-platform_build_release-some_release-android.foo-all",
+					package: "android.foo",
+					srcs: [
+						"*.textproto",
+					],
+				}
+				`),
+				"some_release/android.foo/flag.textproto": nil,
+
+				// .../some_release/android.bar/
+				"some_release/android.bar/Android.bp": []byte(`
+				aconfig_values {
+					name: "aconfig-values-platform_build_release-some_release-android.bar-all",
+					package: "android.bar",
+					srcs: [
+						"*.textproto",
+					],
+				}
+				`),
+				"some_release/android.bar/flag.textproto": nil,
+
+				// .../some_release/
+				"some_release/Android.bp": []byte(`
+				aconfig_value_set {
+					name: "aconfig_value_set-platform_build_release-some_release",
+					srcs: [
+						"*/Android.bp",
+					],
+				}
+				`),
+			},
+		),
+	).RunTest(t)
+
+	checkModuleHasDependency := func(name, variant, dep string) bool {
+		t.Helper()
+		module := result.ModuleForTests(name, variant).Module()
+		depFound := false
+		result.VisitDirectDeps(module, func(m blueprint.Module) {
+			if m.Name() == dep {
+				depFound = true
+			}
+		})
+		return depFound
+	}
+	android.AssertBoolEquals(t,
+		"aconfig_value_set expected to depend on aconfig_value via srcs",
+		true,
+		checkModuleHasDependency(
+			"aconfig_value_set-platform_build_release-some_release",
+			"",
+			"aconfig-values-platform_build_release-some_release-android.foo-all",
+		),
+	)
+	android.AssertBoolEquals(t,
+		"aconfig_value_set expected to depend on aconfig_value via srcs",
+		true,
+		checkModuleHasDependency(
+			"aconfig_value_set-platform_build_release-some_release",
+			"",
+			"aconfig-values-platform_build_release-some_release-android.bar-all",
+		),
+	)
+}
+
+func TestAconfigValueSetBpGlobError(t *testing.T) {
+	android.GroupFixturePreparers(
+		PrepareForTestWithAconfigBuildComponents,
+		android.FixtureMergeMockFs(
+			map[string][]byte{
+				// .../some_release/android.bar/
+				"some_release/android.bar/Android.bp": []byte(`
+				aconfig_values {
+					name: "aconfig-values-platform_build_release-some_release-android_bar-all",
+					package: "android.bar",
+					srcs: [
+						"*.textproto",
+					],
+				}
+				`),
+				"some_release/android.bar/flag.textproto": nil,
+
+				// .../some_release/
+				"some_release/Android.bp": []byte(`
+				aconfig_value_set {
+					name: "aconfig_value_set-platform_build_release-some_release",
+					srcs: [
+						"*/Android.bp",
+					],
+				}
+				`),
+			},
+		),
+	).ExtendWithErrorHandler(android.FixtureExpectsOneErrorPattern(
+		`module "aconfig_value_set-platform_build_release-some_release": module ` +
+			`"aconfig-values-platform_build_release-some_release-android.bar-all" not found. ` +
+			`Rename the aconfig_values module defined in "some_release/android.bar/Android.bp" ` +
+			`to "aconfig-values-platform_build_release-some_release-android.bar-all"`),
+	).RunTest(t)
+}
diff --git a/aconfig/codegen/cc_aconfig_library.go b/aconfig/codegen/cc_aconfig_library.go
index b5cf687..8c4bfe6 100644
--- a/aconfig/codegen/cc_aconfig_library.go
+++ b/aconfig/codegen/cc_aconfig_library.go
@@ -63,7 +63,7 @@
 	callbacks := &CcAconfigLibraryCallbacks{
 		properties: &CcAconfigLibraryProperties{},
 	}
-	return cc.GeneratedCcLibraryModuleFactory("cc_aconfig_library", callbacks)
+	return cc.GeneratedCcLibraryModuleFactory(callbacks)
 }
 
 func (this *CcAconfigLibraryCallbacks) GeneratorInit(ctx cc.BaseModuleContext) {
diff --git a/aconfig/codegen/init.go b/aconfig/codegen/init.go
index 98d288f..ed0b3ed 100644
--- a/aconfig/codegen/init.go
+++ b/aconfig/codegen/init.go
@@ -32,6 +32,7 @@
 				`    --mode ${mode}` +
 				`    --cache ${in}` +
 				`    --out ${out}.tmp` +
+				`    --allow-instrumentation ${debug}` +
 				` && $soong_zip -write_if_changed -jar -o ${out} -C ${out}.tmp -D ${out}.tmp` +
 				` && rm -rf ${out}.tmp`,
 			CommandDeps: []string{
@@ -39,7 +40,7 @@
 				"$soong_zip",
 			},
 			Restat: true,
-		}, "mode")
+		}, "mode", "debug")
 
 	// For cc_aconfig_library: Generate C++ library
 	cppRule = pctx.AndroidStaticRule("cc_aconfig_library",
diff --git a/aconfig/codegen/java_aconfig_library.go b/aconfig/codegen/java_aconfig_library.go
index 673ac2a..ebca413 100644
--- a/aconfig/codegen/java_aconfig_library.go
+++ b/aconfig/codegen/java_aconfig_library.go
@@ -20,6 +20,7 @@
 
 	"github.com/google/blueprint"
 	"github.com/google/blueprint/proptools"
+	"strconv"
 )
 
 type declarationsTagType struct {
@@ -71,6 +72,7 @@
 		module.AddSharedLibrary("aconfig-annotations-lib")
 		// TODO(b/303773055): Remove the annotation after access issue is resolved.
 		module.AddSharedLibrary("unsupportedappusage")
+		module.AddSharedLibrary("aconfig_storage_reader_java")
 	}
 }
 
@@ -102,7 +104,8 @@
 		Output:      srcJarPath,
 		Description: "aconfig.srcjar",
 		Args: map[string]string{
-			"mode": mode,
+			"mode":  mode,
+			"debug": strconv.FormatBool(ctx.Config().ReleaseReadFromNewStorage()),
 		},
 	})
 
diff --git a/aconfig/codegen/java_aconfig_library_test.go b/aconfig/codegen/java_aconfig_library_test.go
index 87b54a4..d8372f3 100644
--- a/aconfig/codegen/java_aconfig_library_test.go
+++ b/aconfig/codegen/java_aconfig_library_test.go
@@ -260,7 +260,7 @@
 			aconfig_declarations {
 				name: "my_aconfig_declarations_bar",
 				package: "com.example.package.bar",
-				container: "system_ext",
+				container: "vendor",
 				srcs: ["bar.aconfig"],
 			}
 
diff --git a/aidl_library/Android.bp b/aidl_library/Android.bp
index ec21504..07472a4 100644
--- a/aidl_library/Android.bp
+++ b/aidl_library/Android.bp
@@ -29,4 +29,5 @@
         "aidl_library_test.go",
     ],
     pluginFor: ["soong_build"],
+    visibility: ["//visibility:public"],
 }
diff --git a/android/Android.bp b/android/Android.bp
index 16a34b7..2adedfe 100644
--- a/android/Android.bp
+++ b/android/Android.bp
@@ -88,6 +88,7 @@
         "prebuilt.go",
         "prebuilt_build_tool.go",
         "product_config.go",
+        "product_config_to_bp.go",
         "proto.go",
         "provider.go",
         "raw_files.go",
@@ -154,4 +155,6 @@
         "vintf_fragment_test.go",
         "visibility_test.go",
     ],
+    // Used by plugins
+    visibility: ["//visibility:public"],
 }
diff --git a/android/aconfig_providers.go b/android/aconfig_providers.go
index cb88e01..d2a9622 100644
--- a/android/aconfig_providers.go
+++ b/android/aconfig_providers.go
@@ -233,7 +233,8 @@
 	} else if m.ProductSpecific() {
 		container = "product"
 	} else if m.SystemExtSpecific() {
-		container = "system_ext"
+		// system_ext and system partitions should be treated as one container
+		container = "system"
 	}
 
 	paths = append(paths, aconfigFiles[container]...)
diff --git a/android/arch.go b/android/arch.go
index a7868ba..d9ecb50 100644
--- a/android/arch.go
+++ b/android/arch.go
@@ -138,6 +138,13 @@
 	return a.Name
 }
 
+func (a ArchType) Bitness() string {
+	if a.Multilib == "lib32" {
+		return "32"
+	}
+	return "64"
+}
+
 const COMMON_VARIANT = "common"
 
 var (
@@ -396,20 +403,21 @@
 // device_supported and host_supported properties to determine which OsTypes are enabled for this
 // module, then searches through the Targets to determine which have enabled Targets for this
 // module.
-func osMutator(mctx BottomUpMutatorContext) {
-	module := mctx.Module()
-	base := module.base()
+type osTransitionMutator struct{}
 
-	// Nothing to do for modules that are not architecture specific (e.g. a genrule).
-	if !base.ArchSpecific() {
-		return
-	}
+type allOsInfo struct {
+	Os         map[string]OsType
+	Variations []string
+}
 
-	// Collect a list of OSTypes supported by this module based on the HostOrDevice value
-	// passed to InitAndroidArchModule and the device_supported and host_supported properties.
+var allOsProvider = blueprint.NewMutatorProvider[*allOsInfo]("os_propagate")
+
+// moduleOSList collects a list of OSTypes supported by this module based on the HostOrDevice
+// value passed to InitAndroidArchModule and the device_supported and host_supported properties.
+func moduleOSList(ctx ConfigContext, base *ModuleBase) []OsType {
 	var moduleOSList []OsType
 	for _, os := range osTypeList {
-		for _, t := range mctx.Config().Targets[os] {
+		for _, t := range ctx.Config().Targets[os] {
 			if base.supportsTarget(t) {
 				moduleOSList = append(moduleOSList, os)
 				break
@@ -417,53 +425,91 @@
 		}
 	}
 
-	createCommonOSVariant := base.commonProperties.CreateCommonOSVariant
+	if base.commonProperties.CreateCommonOSVariant {
+		// A CommonOS variant was requested so add it to the list of OS variants to
+		// create. It needs to be added to the end because it needs to depend on the
+		// the other variants and inter variant dependencies can only be created from a
+		// later variant in that list to an earlier one. That is because variants are
+		// always processed in the order in which they are created.
+		moduleOSList = append(moduleOSList, CommonOS)
+	}
+
+	return moduleOSList
+}
+
+func (o *osTransitionMutator) Split(ctx BaseModuleContext) []string {
+	module := ctx.Module()
+	base := module.base()
+
+	// Nothing to do for modules that are not architecture specific (e.g. a genrule).
+	if !base.ArchSpecific() {
+		return []string{""}
+	}
+
+	moduleOSList := moduleOSList(ctx, base)
 
 	// If there are no supported OSes then disable the module.
-	if len(moduleOSList) == 0 && !createCommonOSVariant {
+	if len(moduleOSList) == 0 {
 		base.Disable()
-		return
+		return []string{""}
 	}
 
 	// Convert the list of supported OsTypes to the variation names.
 	osNames := make([]string, len(moduleOSList))
+	osMapping := make(map[string]OsType, len(moduleOSList))
 	for i, os := range moduleOSList {
 		osNames[i] = os.String()
+		osMapping[osNames[i]] = os
 	}
 
-	if createCommonOSVariant {
-		// A CommonOS variant was requested so add it to the list of OS variants to
-		// create. It needs to be added to the end because it needs to depend on the
-		// the other variants in the list returned by CreateVariations(...) and inter
-		// variant dependencies can only be created from a later variant in that list to
-		// an earlier one. That is because variants are always processed in the order in
-		// which they are returned from CreateVariations(...).
-		osNames = append(osNames, CommonOS.Name)
-		moduleOSList = append(moduleOSList, CommonOS)
+	SetProvider(ctx, allOsProvider, &allOsInfo{
+		Os:         osMapping,
+		Variations: osNames,
+	})
+
+	return osNames
+}
+
+func (o *osTransitionMutator) OutgoingTransition(ctx OutgoingTransitionContext, sourceVariation string) string {
+	return sourceVariation
+}
+
+func (o *osTransitionMutator) IncomingTransition(ctx IncomingTransitionContext, incomingVariation string) string {
+	module := ctx.Module()
+	base := module.base()
+
+	if !base.ArchSpecific() {
+		return ""
 	}
 
-	// Create the variations, annotate each one with which OS it was created for, and
+	return incomingVariation
+}
+
+func (o *osTransitionMutator) Mutate(ctx BottomUpMutatorContext, variation string) {
+	module := ctx.Module()
+	base := module.base()
+
+	if variation == "" {
+		return
+	}
+
+	allOsInfo, ok := ModuleProvider(ctx, allOsProvider)
+	if !ok {
+		panic(fmt.Errorf("missing allOsProvider"))
+	}
+
+	// Annotate this variant with which OS it was created for, and
 	// squash the appropriate OS-specific properties into the top level properties.
-	modules := mctx.CreateVariations(osNames...)
-	for i, m := range modules {
-		m.base().commonProperties.CompileOS = moduleOSList[i]
-		m.base().setOSProperties(mctx)
-	}
+	base.commonProperties.CompileOS = allOsInfo.Os[variation]
+	base.setOSProperties(ctx)
 
-	if createCommonOSVariant {
+	if variation == CommonOS.String() {
 		// A CommonOS variant was requested so add dependencies from it (the last one in
 		// the list) to the OS type specific variants.
-		last := len(modules) - 1
-		commonOSVariant := modules[last]
-		commonOSVariant.base().commonProperties.CommonOSVariant = true
-		for _, module := range modules[0:last] {
-			// Ignore modules that are enabled. Note, this will only avoid adding
-			// dependencies on OsType variants that are explicitly disabled in their
-			// properties. The CommonOS variant will still depend on disabled variants
-			// if they are disabled afterwards, e.g. in archMutator if
-			if module.Enabled(mctx) {
-				mctx.AddInterVariantDependency(commonOsToOsSpecificVariantTag, commonOSVariant, module)
-			}
+		osList := allOsInfo.Variations[:len(allOsInfo.Variations)-1]
+		for _, os := range osList {
+			variation := []blueprint.Variation{{"os", os}}
+			ctx.AddVariationDependencies(variation, commonOsToOsSpecificVariantTag, ctx.ModuleName())
 		}
 	}
 }
@@ -496,7 +542,7 @@
 
 var DarwinUniversalVariantTag = archDepTag{name: "darwin universal binary"}
 
-// archMutator splits a module into a variant for each Target requested by the module.  Target selection
+// archTransitionMutator splits a module into a variant for each Target requested by the module.  Target selection
 // for a module is in three levels, OsClass, multilib, and then Target.
 // OsClass selection is determined by:
 //   - The HostOrDeviceSupported value passed in to InitAndroidArchModule by the module type factory, which selects
@@ -527,25 +573,32 @@
 //
 // Modules can be initialized with InitAndroidMultiTargetsArchModule, in which case they will be split by OsClass,
 // but will have a common Target that is expected to handle all other selected Targets via ctx.MultiTargets().
-func archMutator(mctx BottomUpMutatorContext) {
-	module := mctx.Module()
+type archTransitionMutator struct{}
+
+type allArchInfo struct {
+	Targets      map[string]Target
+	MultiTargets []Target
+	Primary      string
+	Multilib     string
+}
+
+var allArchProvider = blueprint.NewMutatorProvider[*allArchInfo]("arch_propagate")
+
+func (a *archTransitionMutator) Split(ctx BaseModuleContext) []string {
+	module := ctx.Module()
 	base := module.base()
 
 	if !base.ArchSpecific() {
-		return
+		return []string{""}
 	}
 
 	os := base.commonProperties.CompileOS
 	if os == CommonOS {
-		// Make sure that the target related properties are initialized for the
-		// CommonOS variant.
-		addTargetProperties(module, commonTargetMap[os.Name], nil, true)
-
 		// Do not create arch specific variants for the CommonOS variant.
-		return
+		return []string{""}
 	}
 
-	osTargets := mctx.Config().Targets[os]
+	osTargets := ctx.Config().Targets[os]
 
 	image := base.commonProperties.ImageVariation
 	// Filter NativeBridge targets unless they are explicitly supported.
@@ -572,19 +625,18 @@
 	prefer32 := os == Windows
 
 	// Determine the multilib selection for this module.
-	ignorePrefer32OnDevice := mctx.Config().IgnorePrefer32OnDevice()
-	multilib, extraMultilib := decodeMultilib(base, os, ignorePrefer32OnDevice)
+	multilib, extraMultilib := decodeMultilib(ctx, base)
 
 	// Convert the multilib selection into a list of Targets.
 	targets, err := decodeMultilibTargets(multilib, osTargets, prefer32)
 	if err != nil {
-		mctx.ModuleErrorf("%s", err.Error())
+		ctx.ModuleErrorf("%s", err.Error())
 	}
 
 	// If there are no supported targets disable the module.
 	if len(targets) == 0 {
 		base.Disable()
-		return
+		return []string{""}
 	}
 
 	// If the module is using extraMultilib, decode the extraMultilib selection into
@@ -593,7 +645,7 @@
 	if extraMultilib != "" {
 		multiTargets, err = decodeMultilibTargets(extraMultilib, osTargets, prefer32)
 		if err != nil {
-			mctx.ModuleErrorf("%s", err.Error())
+			ctx.ModuleErrorf("%s", err.Error())
 		}
 		multiTargets = filterHostCross(multiTargets, targets[0].HostCross)
 	}
@@ -601,7 +653,7 @@
 	// Recovery is always the primary architecture, filter out any other architectures.
 	// Common arch is also allowed
 	if image == RecoveryVariation {
-		primaryArch := mctx.Config().DevicePrimaryArchType()
+		primaryArch := ctx.Config().DevicePrimaryArchType()
 		targets = filterToArch(targets, primaryArch, Common)
 		multiTargets = filterToArch(multiTargets, primaryArch, Common)
 	}
@@ -609,37 +661,109 @@
 	// If there are no supported targets disable the module.
 	if len(targets) == 0 {
 		base.Disable()
-		return
+		return []string{""}
 	}
 
 	// Convert the targets into a list of arch variation names.
 	targetNames := make([]string, len(targets))
+	targetMapping := make(map[string]Target, len(targets))
 	for i, target := range targets {
 		targetNames[i] = target.ArchVariation()
+		targetMapping[targetNames[i]] = targets[i]
 	}
 
-	// Create the variations, annotate each one with which Target it was created for, and
-	// squash the appropriate arch-specific properties into the top level properties.
-	modules := mctx.CreateVariations(targetNames...)
-	for i, m := range modules {
-		addTargetProperties(m, targets[i], multiTargets, i == 0)
-		m.base().setArchProperties(mctx)
+	SetProvider(ctx, allArchProvider, &allArchInfo{
+		Targets:      targetMapping,
+		MultiTargets: multiTargets,
+		Primary:      targetNames[0],
+		Multilib:     multilib,
+	})
+	return targetNames
+}
 
-		// Install support doesn't understand Darwin+Arm64
-		if os == Darwin && targets[i].HostCross {
-			m.base().commonProperties.SkipInstall = true
+func (a *archTransitionMutator) OutgoingTransition(ctx OutgoingTransitionContext, sourceVariation string) string {
+	return sourceVariation
+}
+
+func (a *archTransitionMutator) IncomingTransition(ctx IncomingTransitionContext, incomingVariation string) string {
+	module := ctx.Module()
+	base := module.base()
+
+	if !base.ArchSpecific() {
+		return ""
+	}
+
+	os := base.commonProperties.CompileOS
+	if os == CommonOS {
+		// Do not create arch specific variants for the CommonOS variant.
+		return ""
+	}
+
+	if incomingVariation == "" {
+		multilib, _ := decodeMultilib(ctx, base)
+		if multilib == "common" {
+			return "common"
 		}
 	}
+	return incomingVariation
+}
+
+func (a *archTransitionMutator) Mutate(ctx BottomUpMutatorContext, variation string) {
+	module := ctx.Module()
+	base := module.base()
+	os := base.commonProperties.CompileOS
+
+	if os == CommonOS {
+		// Make sure that the target related properties are initialized for the
+		// CommonOS variant.
+		addTargetProperties(module, commonTargetMap[os.Name], nil, true)
+		return
+	}
+
+	if variation == "" {
+		return
+	}
+
+	if !base.ArchSpecific() {
+		panic(fmt.Errorf("found variation %q for non arch specifc module", variation))
+	}
+
+	allArchInfo, ok := ModuleProvider(ctx, allArchProvider)
+	if !ok {
+		return
+	}
+
+	target, ok := allArchInfo.Targets[variation]
+	if !ok {
+		panic(fmt.Errorf("missing Target for %q", variation))
+	}
+	primary := variation == allArchInfo.Primary
+	multiTargets := allArchInfo.MultiTargets
+
+	// Annotate the new variant with which Target it was created for, and
+	// squash the appropriate arch-specific properties into the top level properties.
+	addTargetProperties(ctx.Module(), target, multiTargets, primary)
+	base.setArchProperties(ctx)
+
+	// Install support doesn't understand Darwin+Arm64
+	if os == Darwin && target.HostCross {
+		base.commonProperties.SkipInstall = true
+	}
 
 	// Create a dependency for Darwin Universal binaries from the primary to secondary
 	// architecture. The module itself will be responsible for calling lipo to merge the outputs.
 	if os == Darwin {
-		if multilib == "darwin_universal" && len(modules) == 2 {
-			mctx.AddInterVariantDependency(DarwinUniversalVariantTag, modules[1], modules[0])
-		} else if multilib == "darwin_universal_common_first" && len(modules) == 3 {
-			mctx.AddInterVariantDependency(DarwinUniversalVariantTag, modules[2], modules[1])
+		isUniversalBinary := (allArchInfo.Multilib == "darwin_universal" && len(allArchInfo.Targets) == 2) ||
+			allArchInfo.Multilib == "darwin_universal_common_first" && len(allArchInfo.Targets) == 3
+		isPrimary := variation == ctx.Config().BuildArch.String()
+		hasSecondaryConfigured := len(ctx.Config().Targets[Darwin]) > 1
+		if isUniversalBinary && isPrimary && hasSecondaryConfigured {
+			secondaryArch := ctx.Config().Targets[Darwin][1].Arch.String()
+			variation := []blueprint.Variation{{"arch", secondaryArch}}
+			ctx.AddVariationDependencies(variation, DarwinUniversalVariantTag, ctx.ModuleName())
 		}
 	}
+
 }
 
 // addTargetProperties annotates a variant with the Target is is being compiled for, the list
@@ -656,7 +780,9 @@
 // multilib from the factory's call to InitAndroidArchModule if none was set.  For modules that
 // called InitAndroidMultiTargetsArchModule it always returns "common" for multilib, and returns
 // the actual multilib in extraMultilib.
-func decodeMultilib(base *ModuleBase, os OsType, ignorePrefer32OnDevice bool) (multilib, extraMultilib string) {
+func decodeMultilib(ctx ConfigContext, base *ModuleBase) (multilib, extraMultilib string) {
+	os := base.commonProperties.CompileOS
+	ignorePrefer32OnDevice := ctx.Config().IgnorePrefer32OnDevice()
 	// First check the "android.compile_multilib" or "host.compile_multilib" properties.
 	switch os.Class {
 	case Device:
diff --git a/android/arch_list.go b/android/arch_list.go
index 9501c87..a47d5eb 100644
--- a/android/arch_list.go
+++ b/android/arch_list.go
@@ -29,6 +29,7 @@
 		"armv9-2a",
 	},
 	X86: {
+		"alderlake",
 		"amberlake",
 		"atom",
 		"broadwell",
@@ -53,6 +54,7 @@
 		"x86_64",
 	},
 	X86_64: {
+		"alderlake",
 		"amberlake",
 		"broadwell",
 		"goldmont",
@@ -165,6 +167,16 @@
 		},
 	},
 	X86: {
+		"alderlake": {
+			"ssse3",
+			"sse4",
+			"sse4_1",
+			"sse4_2",
+			"avx",
+			"avx2",
+			"aes_ni",
+			"popcnt",
+		},
 		"amberlake": {
 			"ssse3",
 			"sse4",
@@ -341,6 +353,16 @@
 			"sse4_2",
 			"popcnt",
 		},
+		"alderlake": {
+			"ssse3",
+			"sse4",
+			"sse4_1",
+			"sse4_2",
+			"avx",
+			"avx2",
+			"aes_ni",
+			"popcnt",
+		},
 		"amberlake": {
 			"ssse3",
 			"sse4",
diff --git a/android/arch_test.go b/android/arch_test.go
index 6134a06..57c9010 100644
--- a/android/arch_test.go
+++ b/android/arch_test.go
@@ -451,7 +451,7 @@
 
 	for _, tt := range testCases {
 		t.Run(tt.name, func(t *testing.T) {
-			if tt.goOS != runtime.GOOS {
+			if tt.goOS != "" && tt.goOS != runtime.GOOS {
 				t.Skipf("requries runtime.GOOS %s", tt.goOS)
 			}
 
diff --git a/android/config.go b/android/config.go
index 368e573..ca20012 100644
--- a/android/config.go
+++ b/android/config.go
@@ -238,6 +238,11 @@
 	return c.config.productVariables.ReleaseAconfigFlagDefaultPermission
 }
 
+// Enable object size sanitizer
+func (c Config) ReleaseBuildObjectSizeSanitizer() bool {
+	return c.config.productVariables.GetBuildFlagBool("RELEASE_BUILD_OBJECT_SIZE_SANITIZER")
+}
+
 // The flag indicating behavior for the tree wrt building modules or using prebuilts
 // derived from RELEASE_DEFAULT_MODULE_BUILD_FROM_SOURCE
 func (c Config) ReleaseDefaultModuleBuildFromSource() bool {
@@ -1247,7 +1252,7 @@
 }
 
 func (c *config) LibartImgHostBaseAddress() string {
-	return "0x60000000"
+	return "0x70000000"
 }
 
 func (c *config) LibartImgDeviceBaseAddress() string {
@@ -1686,14 +1691,6 @@
 	return Bool(c.productVariables.EnforceProductPartitionInterface)
 }
 
-func (c *config) EnforceInterPartitionJavaSdkLibrary() bool {
-	return Bool(c.productVariables.EnforceInterPartitionJavaSdkLibrary)
-}
-
-func (c *config) InterPartitionJavaLibraryAllowList() []string {
-	return c.productVariables.InterPartitionJavaLibraryAllowList
-}
-
 func (c *config) ProductHiddenAPIStubs() []string {
 	return c.productVariables.ProductHiddenAPIStubs
 }
@@ -1965,6 +1962,10 @@
 	return val, ok
 }
 
+func (c *config) UseOptimizedResourceShrinkingByDefault() bool {
+	return c.productVariables.GetBuildFlagBool("RELEASE_USE_OPTIMIZED_RESOURCE_SHRINKING_BY_DEFAULT")
+}
+
 func (c *config) UseResourceProcessorByDefault() bool {
 	return c.productVariables.GetBuildFlagBool("RELEASE_USE_RESOURCE_PROCESSOR_BY_DEFAULT")
 }
diff --git a/android/deapexer.go b/android/deapexer.go
index dcae3e4..4049d2b 100644
--- a/android/deapexer.go
+++ b/android/deapexer.go
@@ -15,7 +15,6 @@
 package android
 
 import (
-	"fmt"
 	"strings"
 
 	"github.com/google/blueprint"
@@ -109,10 +108,6 @@
 	return i.exportedModuleNames
 }
 
-// Provider that can be used from within the `GenerateAndroidBuildActions` of a module that depends
-// on a `deapexer` module to retrieve its `DeapexerInfo`.
-var DeapexerProvider = blueprint.NewProvider[DeapexerInfo]()
-
 // NewDeapexerInfo creates and initializes a DeapexerInfo that is suitable
 // for use with a prebuilt_apex module.
 //
@@ -169,45 +164,6 @@
 	RequiresFilesFromPrebuiltApex()
 }
 
-// FindDeapexerProviderForModule searches through the direct dependencies of the current context
-// module for a DeapexerTag dependency and returns its DeapexerInfo. If a single nonambiguous
-// deapexer module isn't found then it returns it an error
-// clients should check the value of error and call ctx.ModuleErrof if a non nil error is received
-func FindDeapexerProviderForModule(ctx ModuleContext) (*DeapexerInfo, error) {
-	var di *DeapexerInfo
-	var err error
-	ctx.VisitDirectDepsWithTag(DeapexerTag, func(m Module) {
-		if err != nil {
-			// An err has been found. Do not visit further.
-			return
-		}
-		c, ok := OtherModuleProvider(ctx, m, DeapexerProvider)
-		if !ok {
-			ctx.ModuleErrorf("Expected all deps with DeapexerTag to have a DeapexerProvider, but module %q did not", m.Name())
-			return
-		}
-		p := &c
-		if di != nil {
-			// If two DeapexerInfo providers have been found then check if they are
-			// equivalent. If they are then use the selected one, otherwise fail.
-			if selected := equivalentDeapexerInfoProviders(di, p); selected != nil {
-				di = selected
-				return
-			}
-			err = fmt.Errorf("Multiple installable prebuilt APEXes provide ambiguous deapexers: %s and %s", di.ApexModuleName(), p.ApexModuleName())
-		}
-		di = p
-	})
-	if err != nil {
-		return nil, err
-	}
-	if di != nil {
-		return di, nil
-	}
-	ai, _ := ModuleProvider(ctx, ApexInfoProvider)
-	return nil, fmt.Errorf("No prebuilt APEX provides a deapexer module for APEX variant %s", ai.ApexVariationName)
-}
-
 // removeCompressedApexSuffix removes the _compressed suffix from the name if present.
 func removeCompressedApexSuffix(name string) string {
 	return strings.TrimSuffix(name, "_compressed")
diff --git a/android/defaults.go b/android/defaults.go
index d3dbaed..3d06c69 100644
--- a/android/defaults.go
+++ b/android/defaults.go
@@ -101,6 +101,7 @@
 // A restricted subset of context methods, similar to LoadHookContext.
 type DefaultableHookContext interface {
 	EarlyModuleContext
+	OtherModuleProviderContext
 
 	CreateModule(ModuleFactory, ...interface{}) Module
 	AddMissingDependencies(missingDeps []string)
diff --git a/android/init.go b/android/init.go
index d5b486b..b462292 100644
--- a/android/init.go
+++ b/android/init.go
@@ -18,5 +18,6 @@
 
 func init() {
 	gob.Register(ModuleOutPath{})
+	gob.Register(PhonyPath{})
 	gob.Register(unstableInfo{})
 }
diff --git a/android/module.go b/android/module.go
index 47fdc23..d6c129a 100644
--- a/android/module.go
+++ b/android/module.go
@@ -381,7 +381,7 @@
 	Native_bridge_supported *bool `android:"arch_variant"`
 
 	// init.rc files to be installed if this module is installed
-	Init_rc []string `android:"arch_variant,path"`
+	Init_rc proptools.Configurable[[]string] `android:"arch_variant,path"`
 
 	// VINTF manifest fragments to be installed if this module is installed
 	Vintf_fragments proptools.Configurable[[]string] `android:"path"`
@@ -443,12 +443,6 @@
 	// Set at module initialization time by calling InitCommonOSAndroidMultiTargetsArchModule
 	CreateCommonOSVariant bool `blueprint:"mutated"`
 
-	// If set to true then this variant is the CommonOS variant that has dependencies on its
-	// OsType specific variants.
-	//
-	// Set by osMutator.
-	CommonOSVariant bool `blueprint:"mutated"`
-
 	// When set to true, this module is not installed to the full install path (ex: under
 	// out/target/product/<name>/<partition>). It can be installed only to the packaging
 	// modules like android_filesystem.
@@ -1063,8 +1057,29 @@
 }{}
 
 func addVintfFragmentDeps(ctx BottomUpMutatorContext) {
+	// Vintf manifests in the recovery partition will be ignored.
+	if !ctx.Device() || ctx.Module().InstallInRecovery() {
+		return
+	}
+
+	deviceConfig := ctx.DeviceConfig()
+
 	mod := ctx.Module()
-	ctx.AddDependency(mod, vintfDepTag, mod.VintfFragmentModuleNames(ctx)...)
+	vintfModules := ctx.AddDependency(mod, vintfDepTag, mod.VintfFragmentModuleNames(ctx)...)
+
+	modPartition := mod.PartitionTag(deviceConfig)
+	for _, vintf := range vintfModules {
+		if vintfModule, ok := vintf.(*vintfFragmentModule); ok {
+			vintfPartition := vintfModule.PartitionTag(deviceConfig)
+			if modPartition != vintfPartition {
+				ctx.ModuleErrorf("Module %q(%q) and Vintf_fragment %q(%q) are installed to different partitions.",
+					mod.Name(), modPartition,
+					vintfModule.Name(), vintfPartition)
+			}
+		} else {
+			ctx.ModuleErrorf("Only vintf_fragment type module should be listed in vintf_fragment_modules : %q", vintf.Name())
+		}
+	}
 }
 
 // AddProperties "registers" the provided props
@@ -1221,7 +1236,7 @@
 
 // True if the current variant is a CommonOS variant, false otherwise.
 func (m *ModuleBase) IsCommonOSVariant() bool {
-	return m.commonProperties.CommonOSVariant
+	return m.commonProperties.CompileOS == CommonOS
 }
 
 // supportsTarget returns true if the given Target is supported by the current module.
@@ -1346,6 +1361,14 @@
 	return m.commonProperties.Enabled.GetOrDefault(m.ConfigurableEvaluator(ctx), !m.Os().DefaultDisabled)
 }
 
+// Returns a copy of the enabled property, useful for passing it on to sub-modules
+func (m *ModuleBase) EnabledProperty() proptools.Configurable[bool] {
+	if m.commonProperties.ForcedDisabled {
+		return proptools.NewSimpleConfigurable(false)
+	}
+	return m.commonProperties.Enabled.Clone()
+}
+
 func (m *ModuleBase) Disable() {
 	m.commonProperties.ForcedDisabled = true
 }
@@ -1853,7 +1876,7 @@
 			// so only a single rule is created for each init.rc or vintf fragment file.
 
 			if !m.InVendorRamdisk() {
-				ctx.initRcPaths = PathsForModuleSrc(ctx, m.commonProperties.Init_rc)
+				ctx.initRcPaths = PathsForModuleSrc(ctx, m.commonProperties.Init_rc.GetOrDefault(ctx, nil))
 				rcDir := PathForModuleInstall(ctx, "etc", "init")
 				for _, src := range ctx.initRcPaths {
 					installedInitRc := rcDir.Join(ctx, src.Base())
@@ -2204,9 +2227,15 @@
 	return proptools.Bool(m.commonProperties.Native_bridge_supported)
 }
 
+type ConfigContext interface {
+	Config() Config
+}
+
 type ConfigurableEvaluatorContext interface {
+	OtherModuleProviderContext
 	Config() Config
 	OtherModulePropertyErrorf(module Module, property string, fmt string, args ...interface{})
+	HasMutatorFinished(mutatorName string) bool
 }
 
 type configurationEvalutor struct {
@@ -2228,6 +2257,12 @@
 func (e configurationEvalutor) EvaluateConfiguration(condition proptools.ConfigurableCondition, property string) proptools.ConfigurableValue {
 	ctx := e.ctx
 	m := e.m
+
+	if !ctx.HasMutatorFinished("defaults") {
+		ctx.OtherModulePropertyErrorf(m, property, "Cannot evaluate configurable property before the defaults mutator has run")
+		return proptools.ConfigurableValueUndefined()
+	}
+
 	switch condition.FunctionName() {
 	case "release_flag":
 		if condition.NumArgs() != 1 {
diff --git a/android/module_test.go b/android/module_test.go
index d64e3a5..d76d9b3 100644
--- a/android/module_test.go
+++ b/android/module_test.go
@@ -1080,3 +1080,29 @@
 		})
 	}
 }
+
+func TestVintfFragmentModulesChecksPartition(t *testing.T) {
+	bp := `
+	vintf_fragment {
+		name: "vintfModA",
+		src: "test_vintf_file",
+		vendor: true,
+	}
+	deps {
+		name: "modA",
+		vintf_fragment_modules: [
+			"vintfModA",
+		]
+	}
+	`
+
+	testPreparer := GroupFixturePreparers(
+		PrepareForTestWithAndroidBuildComponents,
+		prepareForModuleTests,
+	)
+
+	testPreparer.
+		ExtendWithErrorHandler(FixtureExpectsOneErrorPattern(
+			"Module .+ and Vintf_fragment .+ are installed to different partitions.")).
+		RunTestWithBp(t, bp)
+}
diff --git a/android/mutator.go b/android/mutator.go
index 6f8990d..434e3ba 100644
--- a/android/mutator.go
+++ b/android/mutator.go
@@ -26,7 +26,7 @@
 //   run Pre-deps mutators
 //   run depsMutator
 //   run PostDeps mutators
-//   run FinalDeps mutators (CreateVariations disallowed in this phase)
+//   run FinalDeps mutators (TransitionMutators disallowed in this phase)
 //   continue on to GenerateAndroidBuildActions
 
 // collateGloballyRegisteredMutators constructs the list of mutators that have been registered
@@ -148,9 +148,9 @@
 }
 
 func registerArchMutator(ctx RegisterMutatorsContext) {
-	ctx.BottomUp("os", osMutator).Parallel()
+	ctx.Transition("os", &osTransitionMutator{})
 	ctx.Transition("image", &imageTransitionMutator{})
-	ctx.BottomUp("arch", archMutator).Parallel()
+	ctx.Transition("arch", &archTransitionMutator{})
 }
 
 var preDeps = []RegisterMutatorFunc{
@@ -231,36 +231,6 @@
 	// module's dependency list.
 	AddReverseDependency(module blueprint.Module, tag blueprint.DependencyTag, name string)
 
-	// CreateVariations splits  a module into multiple variants, one for each name in the variationNames
-	// parameter.  It returns a list of new modules in the same order as the variationNames
-	// list.
-	//
-	// If any of the dependencies of the module being operated on were already split
-	// by calling CreateVariations with the same name, the dependency will automatically
-	// be updated to point the matching variant.
-	//
-	// If a module is split, and then a module depending on the first module is not split
-	// when the Mutator is later called on it, the dependency of the depending module will
-	// automatically be updated to point to the first variant.
-	CreateVariations(...string) []Module
-
-	// CreateLocationVariations splits a module into multiple variants, one for each name in the variantNames
-	// parameter.  It returns a list of new modules in the same order as the variantNames
-	// list.
-	//
-	// Local variations do not affect automatic dependency resolution - dependencies added
-	// to the split module via deps or DynamicDependerModule must exactly match a variant
-	// that contains all the non-local variations.
-	CreateLocalVariations(...string) []Module
-
-	// SetDependencyVariation sets all dangling dependencies on the current module to point to the variation
-	// with given name. This function ignores the default variation set by SetDefaultDependencyVariation.
-	SetDependencyVariation(string)
-
-	// SetDefaultDependencyVariation sets the default variation when a dangling reference is detected
-	// during the subsequent calls on Create*Variations* functions. To reset, set it to nil.
-	SetDefaultDependencyVariation(*string)
-
 	// AddVariationDependencies adds deps as dependencies of the current module, but uses the variations
 	// argument to select which variant of the dependency to use.  It returns a slice of modules for
 	// each dependency (some entries may be nil).  A variant of the dependency must exist that matches
@@ -287,12 +257,6 @@
 	// be ordered correctly for all future mutator passes.
 	AddFarVariationDependencies([]blueprint.Variation, blueprint.DependencyTag, ...string) []blueprint.Module
 
-	// AddInterVariantDependency adds a dependency between two variants of the same module.  Variants are always
-	// ordered in the same orderas they were listed in CreateVariations, and AddInterVariantDependency does not change
-	// that ordering, but it associates a DependencyTag with the dependency and makes it visible to VisitDirectDeps,
-	// WalkDeps, etc.
-	AddInterVariantDependency(tag blueprint.DependencyTag, from, to blueprint.Module)
-
 	// ReplaceDependencies finds all the variants of the module with the specified name, then
 	// replaces all dependencies onto those variants with the current variant of this module.
 	// Replacements don't take effect until after the mutator pass is finished.
@@ -303,30 +267,6 @@
 	// as long as the supplied predicate returns true.
 	// Replacements don't take effect until after the mutator pass is finished.
 	ReplaceDependenciesIf(string, blueprint.ReplaceDependencyPredicate)
-
-	// AliasVariation takes a variationName that was passed to CreateVariations for this module,
-	// and creates an alias from the current variant (before the mutator has run) to the new
-	// variant.  The alias will be valid until the next time a mutator calls CreateVariations or
-	// CreateLocalVariations on this module without also calling AliasVariation.  The alias can
-	// be used to add dependencies on the newly created variant using the variant map from
-	// before CreateVariations was run.
-	AliasVariation(variationName string)
-
-	// CreateAliasVariation takes a toVariationName that was passed to CreateVariations for this
-	// module, and creates an alias from a new fromVariationName variant the toVariationName
-	// variant.  The alias will be valid until the next time a mutator calls CreateVariations or
-	// CreateLocalVariations on this module without also calling AliasVariation.  The alias can
-	// be used to add dependencies on the toVariationName variant using the fromVariationName
-	// variant.
-	CreateAliasVariation(fromVariationName, toVariationName string)
-
-	// SetVariationProvider sets the value for a provider for the given newly created variant of
-	// the current module, i.e. one of the Modules returned by CreateVariations..  It panics if
-	// not called during the appropriate mutator or GenerateBuildActions pass for the provider,
-	// if the value is not of the appropriate type, or if the module is not a newly created
-	// variant of the current module.  The value should not be modified after being passed to
-	// SetVariationProvider.
-	SetVariationProvider(module blueprint.Module, provider blueprint.AnyProviderKey, value interface{})
 }
 
 // An outgoingTransitionContextImpl and incomingTransitionContextImpl is created for every dependency of every module
@@ -516,6 +456,9 @@
 }
 
 func (a *androidTransitionMutator) Split(ctx blueprint.BaseModuleContext) []string {
+	if a.finalPhase {
+		panic("TransitionMutator not allowed in FinalDepsMutators")
+	}
 	if m, ok := ctx.Module().(Module); ok {
 		moduleContext := m.base().baseModuleContextFactory(ctx)
 		return a.mutator.Split(&moduleContext)
@@ -760,51 +703,6 @@
 	}
 	b.bp.AddReverseDependency(module, tag, name)
 }
-
-func (b *bottomUpMutatorContext) CreateVariations(variations ...string) []Module {
-	if b.finalPhase {
-		panic("CreateVariations not allowed in FinalDepsMutators")
-	}
-
-	modules := b.bp.CreateVariations(variations...)
-
-	aModules := make([]Module, len(modules))
-	for i := range variations {
-		aModules[i] = modules[i].(Module)
-		base := aModules[i].base()
-		base.commonProperties.DebugMutators = append(base.commonProperties.DebugMutators, b.MutatorName())
-		base.commonProperties.DebugVariations = append(base.commonProperties.DebugVariations, variations[i])
-	}
-
-	return aModules
-}
-
-func (b *bottomUpMutatorContext) CreateLocalVariations(variations ...string) []Module {
-	if b.finalPhase {
-		panic("CreateLocalVariations not allowed in FinalDepsMutators")
-	}
-
-	modules := b.bp.CreateLocalVariations(variations...)
-
-	aModules := make([]Module, len(modules))
-	for i := range variations {
-		aModules[i] = modules[i].(Module)
-		base := aModules[i].base()
-		base.commonProperties.DebugMutators = append(base.commonProperties.DebugMutators, b.MutatorName())
-		base.commonProperties.DebugVariations = append(base.commonProperties.DebugVariations, variations[i])
-	}
-
-	return aModules
-}
-
-func (b *bottomUpMutatorContext) SetDependencyVariation(variation string) {
-	b.bp.SetDependencyVariation(variation)
-}
-
-func (b *bottomUpMutatorContext) SetDefaultDependencyVariation(variation *string) {
-	b.bp.SetDefaultDependencyVariation(variation)
-}
-
 func (b *bottomUpMutatorContext) AddVariationDependencies(variations []blueprint.Variation, tag blueprint.DependencyTag,
 	names ...string) []blueprint.Module {
 	if b.baseModuleContext.checkedMissingDeps() {
@@ -822,10 +720,6 @@
 	return b.bp.AddFarVariationDependencies(variations, tag, names...)
 }
 
-func (b *bottomUpMutatorContext) AddInterVariantDependency(tag blueprint.DependencyTag, from, to blueprint.Module) {
-	b.bp.AddInterVariantDependency(tag, from, to)
-}
-
 func (b *bottomUpMutatorContext) ReplaceDependencies(name string) {
 	if b.baseModuleContext.checkedMissingDeps() {
 		panic("Adding deps not allowed after checking for missing deps")
@@ -839,15 +733,3 @@
 	}
 	b.bp.ReplaceDependenciesIf(name, predicate)
 }
-
-func (b *bottomUpMutatorContext) AliasVariation(variationName string) {
-	b.bp.AliasVariation(variationName)
-}
-
-func (b *bottomUpMutatorContext) CreateAliasVariation(fromVariationName, toVariationName string) {
-	b.bp.CreateAliasVariation(fromVariationName, toVariationName)
-}
-
-func (b *bottomUpMutatorContext) SetVariationProvider(module blueprint.Module, provider blueprint.AnyProviderKey, value interface{}) {
-	b.bp.SetVariationProvider(module, provider, value)
-}
diff --git a/android/mutator_test.go b/android/mutator_test.go
index 21eebd2..5d4074a 100644
--- a/android/mutator_test.go
+++ b/android/mutator_test.go
@@ -81,6 +81,40 @@
 	AssertDeepEquals(t, "foo missing deps", []string{"added_missing_dep", "regular_missing_dep"}, foo.missingDeps)
 }
 
+type testTransitionMutator struct {
+	split              func(ctx BaseModuleContext) []string
+	outgoingTransition func(ctx OutgoingTransitionContext, sourceVariation string) string
+	incomingTransition func(ctx IncomingTransitionContext, incomingVariation string) string
+	mutate             func(ctx BottomUpMutatorContext, variation string)
+}
+
+func (t *testTransitionMutator) Split(ctx BaseModuleContext) []string {
+	if t.split != nil {
+		return t.split(ctx)
+	}
+	return []string{""}
+}
+
+func (t *testTransitionMutator) OutgoingTransition(ctx OutgoingTransitionContext, sourceVariation string) string {
+	if t.outgoingTransition != nil {
+		return t.outgoingTransition(ctx, sourceVariation)
+	}
+	return sourceVariation
+}
+
+func (t *testTransitionMutator) IncomingTransition(ctx IncomingTransitionContext, incomingVariation string) string {
+	if t.incomingTransition != nil {
+		return t.incomingTransition(ctx, incomingVariation)
+	}
+	return incomingVariation
+}
+
+func (t *testTransitionMutator) Mutate(ctx BottomUpMutatorContext, variation string) {
+	if t.mutate != nil {
+		t.mutate(ctx, variation)
+	}
+}
+
 func TestModuleString(t *testing.T) {
 	bp := `
 		test {
@@ -94,9 +128,11 @@
 		FixtureRegisterWithContext(func(ctx RegistrationContext) {
 
 			ctx.PreArchMutators(func(ctx RegisterMutatorsContext) {
-				ctx.BottomUp("pre_arch", func(ctx BottomUpMutatorContext) {
-					moduleStrings = append(moduleStrings, ctx.Module().String())
-					ctx.CreateVariations("a", "b")
+				ctx.Transition("pre_arch", &testTransitionMutator{
+					split: func(ctx BaseModuleContext) []string {
+						moduleStrings = append(moduleStrings, ctx.Module().String())
+						return []string{"a", "b"}
+					},
 				})
 				ctx.TopDown("rename_top_down", func(ctx TopDownMutatorContext) {
 					moduleStrings = append(moduleStrings, ctx.Module().String())
@@ -105,16 +141,23 @@
 			})
 
 			ctx.PreDepsMutators(func(ctx RegisterMutatorsContext) {
-				ctx.BottomUp("pre_deps", func(ctx BottomUpMutatorContext) {
-					moduleStrings = append(moduleStrings, ctx.Module().String())
-					ctx.CreateVariations("c", "d")
+				ctx.Transition("pre_deps", &testTransitionMutator{
+					split: func(ctx BaseModuleContext) []string {
+						moduleStrings = append(moduleStrings, ctx.Module().String())
+						return []string{"c", "d"}
+					},
 				})
 			})
 
 			ctx.PostDepsMutators(func(ctx RegisterMutatorsContext) {
-				ctx.BottomUp("post_deps", func(ctx BottomUpMutatorContext) {
-					moduleStrings = append(moduleStrings, ctx.Module().String())
-					ctx.CreateLocalVariations("e", "f")
+				ctx.Transition("post_deps", &testTransitionMutator{
+					split: func(ctx BaseModuleContext) []string {
+						moduleStrings = append(moduleStrings, ctx.Module().String())
+						return []string{"e", "f"}
+					},
+					outgoingTransition: func(ctx OutgoingTransitionContext, sourceVariation string) string {
+						return ""
+					},
 				})
 				ctx.BottomUp("rename_bottom_up", func(ctx BottomUpMutatorContext) {
 					moduleStrings = append(moduleStrings, ctx.Module().String())
@@ -138,15 +181,15 @@
 		"foo{pre_arch:b}",
 		"foo{pre_arch:a}",
 
-		// After rename_top_down.
-		"foo_renamed1{pre_arch:a}",
+		// After rename_top_down (reversed because pre_deps TransitionMutator.Split is TopDown).
 		"foo_renamed1{pre_arch:b}",
+		"foo_renamed1{pre_arch:a}",
 
-		// After pre_deps.
-		"foo_renamed1{pre_arch:a,pre_deps:c}",
-		"foo_renamed1{pre_arch:a,pre_deps:d}",
-		"foo_renamed1{pre_arch:b,pre_deps:c}",
+		// After pre_deps (reversed because post_deps TransitionMutator.Split is TopDown).
 		"foo_renamed1{pre_arch:b,pre_deps:d}",
+		"foo_renamed1{pre_arch:b,pre_deps:c}",
+		"foo_renamed1{pre_arch:a,pre_deps:d}",
+		"foo_renamed1{pre_arch:a,pre_deps:c}",
 
 		// After post_deps.
 		"foo_renamed1{pre_arch:a,pre_deps:c,post_deps:e}",
@@ -202,8 +245,10 @@
 						ctx.AddFarVariationDependencies([]blueprint.Variation{}, dep1Tag, "common_dep_1")
 					}
 				})
-				ctx.BottomUp("variant", func(ctx BottomUpMutatorContext) {
-					ctx.CreateLocalVariations("a", "b")
+				ctx.Transition("variant", &testTransitionMutator{
+					split: func(ctx BaseModuleContext) []string {
+						return []string{"a", "b"}
+					},
 				})
 			})
 
@@ -242,28 +287,21 @@
 	AssertDeepEquals(t, "final", finalWant, finalGot)
 }
 
-func TestNoCreateVariationsInFinalDeps(t *testing.T) {
-	checkErr := func() {
-		if err := recover(); err == nil || !strings.Contains(fmt.Sprintf("%s", err), "not allowed in FinalDepsMutators") {
-			panic("Expected FinalDepsMutators consistency check to fail")
-		}
-	}
-
+func TestTransitionMutatorInFinalDeps(t *testing.T) {
 	GroupFixturePreparers(
 		FixtureRegisterWithContext(func(ctx RegistrationContext) {
 			ctx.FinalDepsMutators(func(ctx RegisterMutatorsContext) {
-				ctx.BottomUp("vars", func(ctx BottomUpMutatorContext) {
-					defer checkErr()
-					ctx.CreateVariations("a", "b")
-				})
-				ctx.BottomUp("local_vars", func(ctx BottomUpMutatorContext) {
-					defer checkErr()
-					ctx.CreateLocalVariations("a", "b")
+				ctx.Transition("vars", &testTransitionMutator{
+					split: func(ctx BaseModuleContext) []string {
+						return []string{"a", "b"}
+					},
 				})
 			})
 
 			ctx.RegisterModuleType("test", mutatorTestModuleFactory)
 		}),
 		FixtureWithRootAndroidBp(`test {name: "foo"}`),
-	).RunTest(t)
+	).
+		ExtendWithErrorHandler(FixtureExpectsOneErrorPattern("not allowed in FinalDepsMutators")).
+		RunTest(t)
 }
diff --git a/android/packaging_test.go b/android/packaging_test.go
index 0f7bb39..f5b1020 100644
--- a/android/packaging_test.go
+++ b/android/packaging_test.go
@@ -118,6 +118,7 @@
 	}
 
 	result := GroupFixturePreparers(
+		PrepareForTestWithDefaults,
 		PrepareForTestWithArchMutator,
 		FixtureRegisterWithContext(func(ctx RegistrationContext) {
 			ctx.RegisterModuleType("component", componentTestModuleFactory)
diff --git a/android/paths.go b/android/paths.go
index 0a4f891..0d94f03 100644
--- a/android/paths.go
+++ b/android/paths.go
@@ -91,6 +91,7 @@
 // the Path methods that rely on module dependencies having been resolved.
 type ModuleWithDepsPathContext interface {
 	EarlyModulePathContext
+	OtherModuleProviderContext
 	VisitDirectDepsBlueprint(visit func(blueprint.Module))
 	OtherModuleDependencyTag(m blueprint.Module) blueprint.DependencyTag
 	HasMutatorFinished(mutatorName string) bool
diff --git a/android/prebuilt.go b/android/prebuilt.go
index fd5a6ea..4f04d05 100644
--- a/android/prebuilt.go
+++ b/android/prebuilt.go
@@ -359,8 +359,8 @@
 //
 // This function is for use on dependencies after PrebuiltPostDepsMutator has
 // run - any dependency that is registered before that will already reference
-// the right module. This function is only safe to call after all mutators that
-// may call CreateVariations, e.g. in GenerateAndroidBuildActions.
+// the right module. This function is only safe to call after all TransitionMutators
+// have run, e.g. in GenerateAndroidBuildActions.
 func PrebuiltGetPreferred(ctx BaseModuleContext, module Module) Module {
 	if !module.IsReplacedByPrebuilt() {
 		return module
diff --git a/android/product_config.go b/android/product_config.go
index 04180bf..ce3acc9 100644
--- a/android/product_config.go
+++ b/android/product_config.go
@@ -14,7 +14,9 @@
 
 package android
 
-import "github.com/google/blueprint/proptools"
+import (
+	"github.com/google/blueprint/proptools"
+)
 
 func init() {
 	ctx := InitRegistrationContext
diff --git a/android/product_config_to_bp.go b/android/product_config_to_bp.go
new file mode 100644
index 0000000..680328f
--- /dev/null
+++ b/android/product_config_to_bp.go
@@ -0,0 +1,35 @@
+// Copyright 2024 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package android
+
+func init() {
+	ctx := InitRegistrationContext
+	ctx.RegisterParallelSingletonType("product_config_to_bp_singleton", productConfigToBpSingletonFactory)
+}
+
+type productConfigToBpSingleton struct{}
+
+func (s *productConfigToBpSingleton) GenerateBuildActions(ctx SingletonContext) {
+	// TODO: update content from make-based product config
+	var content string
+	generatedBp := PathForOutput(ctx, "soong_generated_product_config.bp")
+	WriteFileRule(ctx, generatedBp, content)
+	ctx.Phony("product_config_to_bp", generatedBp)
+}
+
+// productConfigToBpSingleton generates a bp file from make-based product config
+func productConfigToBpSingletonFactory() Singleton {
+	return &productConfigToBpSingleton{}
+}
diff --git a/android/singleton_module_test.go b/android/singleton_module_test.go
index 3b1bf39..3b8c6b2 100644
--- a/android/singleton_module_test.go
+++ b/android/singleton_module_test.go
@@ -96,12 +96,6 @@
 	}
 }
 
-func testVariantSingletonModuleMutator(ctx BottomUpMutatorContext) {
-	if _, ok := ctx.Module().(*testSingletonModule); ok {
-		ctx.CreateVariations("a", "b")
-	}
-}
-
 func TestVariantSingletonModule(t *testing.T) {
 	if testing.Short() {
 		t.Skip("test fails with data race enabled")
@@ -116,7 +110,11 @@
 		prepareForSingletonModuleTest,
 		FixtureRegisterWithContext(func(ctx RegistrationContext) {
 			ctx.PreDepsMutators(func(ctx RegisterMutatorsContext) {
-				ctx.BottomUp("test_singleton_module_mutator", testVariantSingletonModuleMutator)
+				ctx.Transition("test_singleton_module_mutator", &testTransitionMutator{
+					split: func(ctx BaseModuleContext) []string {
+						return []string{"a", "b"}
+					},
+				})
 			})
 		}),
 	).
diff --git a/android/team_proto/Android.bp b/android/team_proto/Android.bp
index 7e2a4c1..5faaaf1 100644
--- a/android/team_proto/Android.bp
+++ b/android/team_proto/Android.bp
@@ -40,4 +40,8 @@
     proto: {
         canonical_path_from_root: false,
     },
+    visibility: [
+        "//build/soong:__subpackages__",
+        "//tools/asuite/team_build_scripts",
+    ],
 }
diff --git a/android/testing.go b/android/testing.go
index 1ee6e4c..196b22e 100644
--- a/android/testing.go
+++ b/android/testing.go
@@ -1330,6 +1330,10 @@
 	return ctx.ctx.HasMutatorFinished(mutatorName)
 }
 
+func (ctx *panickingConfigAndErrorContext) otherModuleProvider(m blueprint.Module, p blueprint.AnyProviderKey) (any, bool) {
+	return ctx.ctx.otherModuleProvider(m, p)
+}
+
 func PanickingConfigAndErrorContext(ctx *TestContext) ConfigurableEvaluatorContext {
 	return &panickingConfigAndErrorContext{
 		ctx: ctx,
diff --git a/android/variable.go b/android/variable.go
index e0d512d..7041f49 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -428,9 +428,6 @@
 
 	EnforceProductPartitionInterface *bool `json:",omitempty"`
 
-	EnforceInterPartitionJavaSdkLibrary *bool    `json:",omitempty"`
-	InterPartitionJavaLibraryAllowList  []string `json:",omitempty"`
-
 	BoardUsesRecoveryAsBoot *bool `json:",omitempty"`
 
 	BoardKernelBinaries                []string `json:",omitempty"`
diff --git a/apex/Android.bp b/apex/Android.bp
index ef2f755..4848513 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -42,4 +42,6 @@
         "systemserver_classpath_fragment_test.go",
     ],
     pluginFor: ["soong_build"],
+    // Used by plugins
+    visibility: ["//visibility:public"],
 }
diff --git a/apex/apex.go b/apex/apex.go
index ff39597..ded2175 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -49,15 +49,10 @@
 	ctx.RegisterModuleType("override_apex", OverrideApexFactory)
 	ctx.RegisterModuleType("apex_set", apexSetFactory)
 
-	ctx.PreArchMutators(registerPreArchMutators)
 	ctx.PreDepsMutators(RegisterPreDepsMutators)
 	ctx.PostDepsMutators(RegisterPostDepsMutators)
 }
 
-func registerPreArchMutators(ctx android.RegisterMutatorsContext) {
-	ctx.BottomUp("prebuilt_apex_module_creator", prebuiltApexModuleCreatorMutator).Parallel()
-}
-
 func RegisterPreDepsMutators(ctx android.RegisterMutatorsContext) {
 	ctx.BottomUp("apex_vndk_deps", apexVndkDepsMutator).Parallel()
 }
@@ -2759,6 +2754,12 @@
 		return
 	}
 
+	// Temporarily bypass /product APEXes with a specific prefix.
+	// TODO: b/352818241 - Remove this after APEX availability is enforced for /product APEXes.
+	if a.ProductSpecific() && strings.HasPrefix(a.ApexVariationName(), "com.sdv.") {
+		return
+	}
+
 	// Coverage build adds additional dependencies for the coverage-only runtime libraries.
 	// Requiring them and their transitive depencies with apex_available is not right
 	// because they just add noise.
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 2b97728..ad0bb17 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -3685,7 +3685,7 @@
 }
 
 func ensureExactDeapexedContents(t *testing.T, ctx *android.TestContext, moduleName string, variant string, files []string) {
-	deapexer := ctx.ModuleForTests(moduleName+".deapexer", variant).Description("deapex")
+	deapexer := ctx.ModuleForTests(moduleName, variant).Description("deapex")
 	outputs := make([]string, 0, len(deapexer.ImplicitOutputs)+1)
 	if deapexer.Output != nil {
 		outputs = append(outputs, deapexer.Output.String())
@@ -4885,236 +4885,6 @@
 func (ctx moduleErrorfTestCtx) ModuleErrorf(format string, args ...interface{}) {
 }
 
-// These tests verify that the prebuilt_apex/deapexer to java_import wiring allows for the
-// propagation of paths to dex implementation jars from the former to the latter.
-func TestPrebuiltExportDexImplementationJars(t *testing.T) {
-	transform := android.NullFixturePreparer
-
-	checkDexJarBuildPath := func(t *testing.T, ctx *android.TestContext, name string) {
-		t.Helper()
-		// Make sure the import has been given the correct path to the dex jar.
-		p := ctx.ModuleForTests(name, "android_common_myapex").Module().(java.UsesLibraryDependency)
-		dexJarBuildPath := p.DexJarBuildPath(moduleErrorfTestCtx{}).PathOrNil()
-		stem := android.RemoveOptionalPrebuiltPrefix(name)
-		android.AssertStringEquals(t, "DexJarBuildPath should be apex-related path.",
-			".intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/"+stem+".jar",
-			android.NormalizePathForTesting(dexJarBuildPath))
-	}
-
-	checkDexJarInstallPath := func(t *testing.T, ctx *android.TestContext, name string) {
-		t.Helper()
-		// Make sure the import has been given the correct path to the dex jar.
-		p := ctx.ModuleForTests(name, "android_common_myapex").Module().(java.UsesLibraryDependency)
-		dexJarBuildPath := p.DexJarInstallPath()
-		stem := android.RemoveOptionalPrebuiltPrefix(name)
-		android.AssertStringEquals(t, "DexJarInstallPath should be apex-related path.",
-			"target/product/test_device/apex/myapex/javalib/"+stem+".jar",
-			android.NormalizePathForTesting(dexJarBuildPath))
-	}
-
-	ensureNoSourceVariant := func(t *testing.T, ctx *android.TestContext, name string) {
-		t.Helper()
-		// Make sure that an apex variant is not created for the source module.
-		android.AssertArrayString(t, "Check if there is no source variant",
-			[]string{"android_common"},
-			ctx.ModuleVariantsForTests(name))
-	}
-
-	t.Run("prebuilt only", func(t *testing.T) {
-		bp := `
-		prebuilt_apex {
-			name: "myapex",
-			arch: {
-				arm64: {
-					src: "myapex-arm64.apex",
-				},
-				arm: {
-					src: "myapex-arm.apex",
-				},
-			},
-			exported_java_libs: ["libfoo", "libbar"],
-		}
-
-		java_import {
-			name: "libfoo",
-			jars: ["libfoo.jar"],
-			sdk_version: "core_current",
-		}
-
-		java_sdk_library_import {
-			name: "libbar",
-			public: {
-				jars: ["libbar.jar"],
-			},
-		}
-	`
-
-		// Make sure that dexpreopt can access dex implementation files from the prebuilt.
-		ctx := testDexpreoptWithApexes(t, bp, "", transform)
-
-		deapexerName := deapexerModuleName("prebuilt_myapex")
-		android.AssertStringEquals(t, "APEX module name from deapexer name", "prebuilt_myapex", apexModuleName(deapexerName))
-
-		// Make sure that the deapexer has the correct input APEX.
-		deapexer := ctx.ModuleForTests(deapexerName, "android_common")
-		rule := deapexer.Rule("deapexer")
-		if expected, actual := []string{"myapex-arm64.apex"}, android.NormalizePathsForTesting(rule.Implicits); !reflect.DeepEqual(expected, actual) {
-			t.Errorf("expected: %q, found: %q", expected, actual)
-		}
-
-		// Make sure that the prebuilt_apex has the correct input APEX.
-		prebuiltApex := ctx.ModuleForTests("myapex", "android_common_myapex")
-		rule = prebuiltApex.Rule("android/soong/android.Cp")
-		if expected, actual := "myapex-arm64.apex", android.NormalizePathForTesting(rule.Input); !reflect.DeepEqual(expected, actual) {
-			t.Errorf("expected: %q, found: %q", expected, actual)
-		}
-
-		checkDexJarBuildPath(t, ctx, "libfoo")
-		checkDexJarInstallPath(t, ctx, "libfoo")
-
-		checkDexJarBuildPath(t, ctx, "libbar")
-		checkDexJarInstallPath(t, ctx, "libbar")
-	})
-
-	t.Run("prebuilt with source preferred", func(t *testing.T) {
-
-		bp := `
-		apex {
-			name: "myapex",
-			key: "myapex.key",
-			updatable: false,
-			java_libs: [
-				"libfoo",
-				"libbar",
-			],
-		}
-
-		apex_key {
-			name: "myapex.key",
-			public_key: "testkey.avbpubkey",
-			private_key: "testkey.pem",
-		}
-
-		prebuilt_apex {
-			name: "myapex",
-			arch: {
-				arm64: {
-					src: "myapex-arm64.apex",
-				},
-				arm: {
-					src: "myapex-arm.apex",
-				},
-			},
-			exported_java_libs: ["libfoo", "libbar"],
-		}
-
-		java_import {
-			name: "libfoo",
-			jars: ["libfoo.jar"],
-			apex_available: [
-				"myapex",
-			],
-			compile_dex: true,
-			sdk_version: "core_current",
-		}
-
-		java_library {
-			name: "libfoo",
-			srcs: ["foo/bar/MyClass.java"],
-			apex_available: [
-				"myapex",
-			],
-			compile_dex: true,
-			sdk_version: "core_current",
-		}
-
-		java_sdk_library_import {
-			name: "libbar",
-			public: {
-				jars: ["libbar.jar"],
-			},
-			apex_available: [
-				"myapex",
-			],
-			compile_dex: true,
-		}
-
-		java_sdk_library {
-			name: "libbar",
-			srcs: ["foo/bar/MyClass.java"],
-			unsafe_ignore_missing_latest_api: true,
-			apex_available: [
-				"myapex",
-			],
-			compile_dex: true,
-			sdk_version: "core_current",
-		}
-	`
-
-		// Make sure that dexpreopt can access dex implementation files from the prebuilt.
-		ctx := testDexpreoptWithApexes(t, bp, "", transform)
-
-		checkDexJarBuildPath(t, ctx, "prebuilt_libfoo")
-		checkDexJarInstallPath(t, ctx, "prebuilt_libfoo")
-
-		checkDexJarBuildPath(t, ctx, "prebuilt_libbar")
-		checkDexJarInstallPath(t, ctx, "prebuilt_libbar")
-	})
-
-	t.Run("prebuilt preferred with source", func(t *testing.T) {
-		bp := `
-		prebuilt_apex {
-			name: "myapex",
-			arch: {
-				arm64: {
-					src: "myapex-arm64.apex",
-				},
-				arm: {
-					src: "myapex-arm.apex",
-				},
-			},
-			exported_java_libs: ["libfoo", "libbar"],
-		}
-
-		java_import {
-			name: "libfoo",
-			prefer: true,
-			jars: ["libfoo.jar"],
-		}
-
-		java_library {
-			name: "libfoo",
-			sdk_version: "core_current",
-		}
-
-		java_sdk_library_import {
-			name: "libbar",
-			prefer: true,
-			public: {
-				jars: ["libbar.jar"],
-			},
-		}
-
-		java_sdk_library {
-			name: "libbar",
-			srcs: ["foo/bar/MyClass.java"],
-			unsafe_ignore_missing_latest_api: true,
-		}
-	`
-
-		// Make sure that dexpreopt can access dex implementation files from the prebuilt.
-		ctx := testDexpreoptWithApexes(t, bp, "", transform)
-
-		checkDexJarBuildPath(t, ctx, "prebuilt_libfoo")
-		checkDexJarInstallPath(t, ctx, "prebuilt_libfoo")
-		ensureNoSourceVariant(t, ctx, "libfoo")
-
-		checkDexJarBuildPath(t, ctx, "prebuilt_libbar")
-		checkDexJarInstallPath(t, ctx, "prebuilt_libbar")
-		ensureNoSourceVariant(t, ctx, "libbar")
-	})
-}
-
 func TestBootDexJarsFromSourcesAndPrebuilts(t *testing.T) {
 	preparer := android.GroupFixturePreparers(
 		java.FixtureConfigureApexBootJars("myapex:libfoo", "myapex:libbar"),
@@ -5137,23 +4907,6 @@
 		}),
 	)
 
-	checkBootDexJarPath := func(t *testing.T, ctx *android.TestContext, stem string, bootDexJarPath string) {
-		t.Helper()
-		s := ctx.ModuleForTests("dex_bootjars", "android_common")
-		foundLibfooJar := false
-		base := stem + ".jar"
-		for _, output := range s.AllOutputs() {
-			if filepath.Base(output) == base {
-				foundLibfooJar = true
-				buildRule := s.Output(output)
-				android.AssertStringEquals(t, "boot dex jar path", bootDexJarPath, buildRule.Input.String())
-			}
-		}
-		if !foundLibfooJar {
-			t.Errorf("Rule for libfoo.jar missing in dex_bootjars singleton outputs %q", android.StringPathsRelativeToTop(ctx.Config().SoongOutDir(), s.AllOutputs()))
-		}
-	}
-
 	checkHiddenAPIIndexFromClassesInputs := func(t *testing.T, ctx *android.TestContext, expectedIntermediateInputs string) {
 		t.Helper()
 		platformBootclasspath := ctx.ModuleForTests("platform-bootclasspath", "android_common")
@@ -5206,12 +4959,14 @@
 			},
 		}
 
-		java_import {
+		java_sdk_library_import {
 			name: "libfoo",
-			jars: ["libfoo.jar"],
+			public: {
+				jars: ["libfoo.jar"],
+			},
 			apex_available: ["myapex"],
+			shared_library: false,
 			permitted_packages: ["foo"],
-			sdk_version: "core_current",
 		}
 
 		java_sdk_library_import {
@@ -5226,8 +4981,6 @@
 	`
 
 		ctx := testDexpreoptWithApexes(t, bp, "", preparer, fragment)
-		checkBootDexJarPath(t, ctx, "libfoo", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libfoo.jar")
-		checkBootDexJarPath(t, ctx, "libbar", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libbar.jar")
 
 		// Verify the correct module jars contribute to the hiddenapi index file.
 		checkHiddenAPIIndexFromClassesInputs(t, ctx, `out/soong/.intermediates/platform/foo/android_common/javac/foo.jar`)
@@ -5243,18 +4996,10 @@
 		apex_set {
 			name: "myapex",
 			set: "myapex.apks",
-			exported_java_libs: ["myjavalib"],
 			exported_bootclasspath_fragments: ["my-bootclasspath-fragment"],
 			exported_systemserverclasspath_fragments: ["my-systemserverclasspath-fragment"],
 		}
 
-		java_import {
-			name: "myjavalib",
-			jars: ["myjavalib.jar"],
-			apex_available: ["myapex"],
-			permitted_packages: ["javalib"],
-		}
-
 		prebuilt_bootclasspath_fragment {
 			name: "my-bootclasspath-fragment",
 			contents: ["libfoo", "libbar"],
@@ -5275,13 +5020,17 @@
 			apex_available: ["myapex"],
 		}
 
-		java_import {
+		java_sdk_library_import {
 			name: "libfoo",
-			jars: ["libfoo.jar"],
+			public: {
+				jars: ["libfoo.jar"],
+			},
 			apex_available: ["myapex"],
-			permitted_packages: ["foo"],
+			shared_library: false,
+			permitted_packages: ["libfoo"],
 		}
 
+
 		java_sdk_library_import {
 			name: "libbar",
 			public: {
@@ -5304,8 +5053,6 @@
 	`
 
 		ctx := testDexpreoptWithApexes(t, bp, "", preparer, fragment)
-		checkBootDexJarPath(t, ctx, "libfoo", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libfoo.jar")
-		checkBootDexJarPath(t, ctx, "libbar", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libbar.jar")
 
 		// Verify the correct module jars contribute to the hiddenapi index file.
 		checkHiddenAPIIndexFromClassesInputs(t, ctx, `out/soong/.intermediates/platform/foo/android_common/javac/foo.jar`)
@@ -5459,13 +5206,15 @@
 			},
 		}
 
-		java_import {
+		java_sdk_library_import {
 			name: "libfoo",
 			prefer: true,
-			jars: ["libfoo.jar"],
+			public: {
+				jars: ["libfoo.jar"],
+			},
 			apex_available: ["myapex"],
-			permitted_packages: ["foo"],
-			sdk_version: "core_current",
+			shared_library: false,
+			permitted_packages: ["libfoo"],
 		}
 
 		java_library {
@@ -5497,8 +5246,6 @@
 	`
 
 		ctx := testDexpreoptWithApexes(t, bp, "", preparer, fragment)
-		checkBootDexJarPath(t, ctx, "libfoo", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libfoo.jar")
-		checkBootDexJarPath(t, ctx, "libbar", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libbar.jar")
 
 		// Verify the correct module jars contribute to the hiddenapi index file.
 		checkHiddenAPIIndexFromClassesInputs(t, ctx, `out/soong/.intermediates/platform/foo/android_common/javac/foo.jar`)
@@ -5597,8 +5344,6 @@
 	`
 
 		ctx := testDexpreoptWithApexes(t, bp, "", preparer, fragment)
-		checkBootDexJarPath(t, ctx, "libfoo", "out/soong/.intermediates/my-bootclasspath-fragment/android_common_myapex/hiddenapi-modular/encoded/libfoo.jar")
-		checkBootDexJarPath(t, ctx, "libbar", "out/soong/.intermediates/my-bootclasspath-fragment/android_common_myapex/hiddenapi-modular/encoded/libbar.jar")
 
 		// Verify the correct module jars contribute to the hiddenapi index file.
 		checkHiddenAPIIndexFromClassesInputs(t, ctx, `out/soong/.intermediates/platform/foo/android_common/javac/foo.jar`)
@@ -5710,8 +5455,6 @@
 		)
 
 		ctx := testDexpreoptWithApexes(t, bp, "", preparer2, fragment)
-		checkBootDexJarPath(t, ctx, "libfoo", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libfoo.jar")
-		checkBootDexJarPath(t, ctx, "libbar", "out/soong/.intermediates/prebuilt_myapex.deapexer/android_common/deapexer/javalib/libbar.jar")
 
 		// Verify the correct module jars contribute to the hiddenapi index file.
 		checkHiddenAPIIndexFromClassesInputs(t, ctx, `out/soong/.intermediates/platform/foo/android_common/javac/foo.jar`)
@@ -6270,6 +6013,87 @@
 		system_shared_libs: [],
 		apex_available: ["otherapex"],
 	}`)
+
+	// 'apex_available' check is bypassed for /product apex with a specific prefix.
+	// TODO: b/352818241 - Remove below two cases after APEX availability is enforced for /product APEXes.
+	testApex(t, `
+	apex {
+		name: "com.sdv.myapex",
+		key: "myapex.key",
+		native_shared_libs: ["libfoo"],
+		updatable: false,
+		product_specific: true,
+	}
+
+	apex_key {
+		name: "myapex.key",
+		public_key: "testkey.avbpubkey",
+		private_key: "testkey.pem",
+	}
+
+	apex {
+		name: "com.any.otherapex",
+		key: "otherapex.key",
+		native_shared_libs: ["libfoo"],
+		updatable: false,
+	}
+
+	apex_key {
+		name: "otherapex.key",
+		public_key: "testkey.avbpubkey",
+		private_key: "testkey.pem",
+	}
+
+	cc_library {
+		name: "libfoo",
+		stl: "none",
+		system_shared_libs: [],
+		apex_available: ["com.any.otherapex"],
+		product_specific: true,
+	}`,
+		android.FixtureMergeMockFs(android.MockFS{
+			"system/sepolicy/apex/com.sdv.myapex-file_contexts":    nil,
+			"system/sepolicy/apex/com.any.otherapex-file_contexts": nil,
+		}))
+
+	// 'apex_available' check is not bypassed for non-product apex with a specific prefix.
+	testApexError(t, "requires \"libfoo\" that doesn't list the APEX under 'apex_available'.", `
+	apex {
+		name: "com.sdv.myapex",
+		key: "myapex.key",
+		native_shared_libs: ["libfoo"],
+		updatable: false,
+	}
+
+	apex_key {
+		name: "myapex.key",
+		public_key: "testkey.avbpubkey",
+		private_key: "testkey.pem",
+	}
+
+	apex {
+		name: "com.any.otherapex",
+		key: "otherapex.key",
+		native_shared_libs: ["libfoo"],
+		updatable: false,
+	}
+
+	apex_key {
+		name: "otherapex.key",
+		public_key: "testkey.avbpubkey",
+		private_key: "testkey.pem",
+	}
+
+	cc_library {
+		name: "libfoo",
+		stl: "none",
+		system_shared_libs: [],
+		apex_available: ["com.any.otherapex"],
+	}`,
+		android.FixtureMergeMockFs(android.MockFS{
+			"system/sepolicy/apex/com.sdv.myapex-file_contexts":    nil,
+			"system/sepolicy/apex/com.any.otherapex-file_contexts": nil,
+		}))
 }
 
 func TestApexAvailable_IndirectDep(t *testing.T) {
@@ -6315,6 +6139,91 @@
 		stl: "none",
 		system_shared_libs: [],
 	}`)
+
+	// 'apex_available' check is bypassed for /product apex with a specific prefix.
+	// TODO: b/352818241 - Remove below two cases after APEX availability is enforced for /product APEXes.
+	testApex(t, `
+		apex {
+			name: "com.sdv.myapex",
+			key: "myapex.key",
+			native_shared_libs: ["libfoo"],
+			updatable: false,
+			product_specific: true,
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+
+		cc_library {
+			name: "libfoo",
+			stl: "none",
+			shared_libs: ["libbar"],
+			system_shared_libs: [],
+			apex_available: ["com.sdv.myapex"],
+			product_specific: true,
+		}
+
+		cc_library {
+			name: "libbar",
+			stl: "none",
+			shared_libs: ["libbaz"],
+			system_shared_libs: [],
+			apex_available: ["com.sdv.myapex"],
+			product_specific: true,
+		}
+
+		cc_library {
+			name: "libbaz",
+			stl: "none",
+			system_shared_libs: [],
+			product_specific: true,
+		}`,
+		android.FixtureMergeMockFs(android.MockFS{
+			"system/sepolicy/apex/com.sdv.myapex-file_contexts": nil,
+		}))
+
+	// 'apex_available' check is not bypassed for non-product apex with a specific prefix.
+	testApexError(t, `requires "libbaz" that doesn't list the APEX under 'apex_available'.`, `
+		apex {
+			name: "com.sdv.myapex",
+			key: "myapex.key",
+			native_shared_libs: ["libfoo"],
+			updatable: false,
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+
+		cc_library {
+			name: "libfoo",
+			stl: "none",
+			shared_libs: ["libbar"],
+			system_shared_libs: [],
+			apex_available: ["com.sdv.myapex"],
+		}
+
+		cc_library {
+			name: "libbar",
+			stl: "none",
+			shared_libs: ["libbaz"],
+			system_shared_libs: [],
+			apex_available: ["com.sdv.myapex"],
+		}
+
+		cc_library {
+			name: "libbaz",
+			stl: "none",
+			system_shared_libs: [],
+		}`,
+		android.FixtureMergeMockFs(android.MockFS{
+			"system/sepolicy/apex/com.sdv.myapex-file_contexts": nil,
+		}))
 }
 
 func TestApexAvailable_IndirectStaticDep(t *testing.T) {
@@ -7339,7 +7248,7 @@
 		java_library {
 			name: "bar",
 			srcs: ["a.java"],
-			libs: ["foo"],
+			libs: ["foo.impl"],
 			apex_available: ["myapex"],
 			sdk_version: "none",
 			system_modules: "none",
@@ -7392,7 +7301,7 @@
 		java_library {
 			name: "bar",
 			srcs: ["a.java"],
-			libs: ["foo"],
+			libs: ["foo.stubs"],
 			sdk_version: "none",
 			system_modules: "none",
 		}
@@ -7446,7 +7355,7 @@
 		java_library {
 			name: "bar",
 			srcs: ["a.java"],
-			libs: ["foo"],
+			libs: ["foo.impl"],
 			apex_available: ["myapex"],
 			sdk_version: "none",
 			system_modules: "none",
@@ -8119,9 +8028,9 @@
 	ctx := testApex(t, bp, prepareForTestWithSantitizeHwaddress)
 
 	// Check that the extractor produces the correct output file from the correct input file.
-	extractorOutput := "out/soong/.intermediates/prebuilt_myapex.apex.extractor/android_common/extracted/myapex.hwasan.apks"
+	extractorOutput := "out/soong/.intermediates/myapex/android_common_myapex/extracted/myapex.hwasan.apks"
 
-	m := ctx.ModuleForTests("prebuilt_myapex.apex.extractor", "android_common")
+	m := ctx.ModuleForTests("myapex", "android_common_myapex")
 	extractedApex := m.Output(extractorOutput)
 
 	android.AssertArrayString(t, "extractor input", []string{"myapex.hwasan.apks"}, extractedApex.Inputs.Strings())
@@ -8146,10 +8055,10 @@
 		}
 	`)
 
-	m := ctx.ModuleForTests("prebuilt_myapex.apex.extractor", "android_common")
+	m := ctx.ModuleForTests("myapex", "android_common_myapex")
 
 	// Check that the extractor produces the correct apks file from the input module
-	extractorOutput := "out/soong/.intermediates/prebuilt_myapex.apex.extractor/android_common/extracted/myapex.apks"
+	extractorOutput := "out/soong/.intermediates/myapex/android_common_myapex/extracted/myapex.apks"
 	extractedApex := m.Output(extractorOutput)
 
 	android.AssertArrayString(t, "extractor input", []string{"myapex.apks"}, extractedApex.Inputs.Strings())
@@ -8211,189 +8120,6 @@
 	return result.TestContext
 }
 
-func TestDuplicateDeapexersFromPrebuiltApexes(t *testing.T) {
-	preparers := android.GroupFixturePreparers(
-		java.PrepareForTestWithJavaDefaultModules,
-		prepareForTestWithBootclasspathFragment,
-		dexpreopt.FixtureSetTestOnlyArtBootImageJars("com.android.art:libfoo"),
-		PrepareForTestWithApexBuildComponents,
-	).
-		ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(
-			"Multiple installable prebuilt APEXes provide ambiguous deapexers: prebuilt_com.android.art and prebuilt_com.mycompany.android.art"))
-
-	bpBase := `
-		apex_set {
-			name: "com.android.art",
-			installable: true,
-			exported_bootclasspath_fragments: ["art-bootclasspath-fragment"],
-			set: "myapex.apks",
-		}
-
-		apex_set {
-			name: "com.mycompany.android.art",
-			apex_name: "com.android.art",
-			installable: true,
-			exported_bootclasspath_fragments: ["art-bootclasspath-fragment"],
-			set: "company-myapex.apks",
-		}
-
-		prebuilt_bootclasspath_fragment {
-			name: "art-bootclasspath-fragment",
-			apex_available: ["com.android.art"],
-			hidden_api: {
-				annotation_flags: "my-bootclasspath-fragment/annotation-flags.csv",
-				metadata: "my-bootclasspath-fragment/metadata.csv",
-				index: "my-bootclasspath-fragment/index.csv",
-				stub_flags: "my-bootclasspath-fragment/stub-flags.csv",
-				all_flags: "my-bootclasspath-fragment/all-flags.csv",
-			},
-			%s
-		}
-	`
-
-	t.Run("java_import", func(t *testing.T) {
-		_ = preparers.RunTestWithBp(t, fmt.Sprintf(bpBase, `contents: ["libfoo"]`)+`
-			java_import {
-				name: "libfoo",
-				jars: ["libfoo.jar"],
-				apex_available: ["com.android.art"],
-			}
-		`)
-	})
-
-	t.Run("java_sdk_library_import", func(t *testing.T) {
-		_ = preparers.RunTestWithBp(t, fmt.Sprintf(bpBase, `contents: ["libfoo"]`)+`
-			java_sdk_library_import {
-				name: "libfoo",
-				public: {
-					jars: ["libbar.jar"],
-				},
-				shared_library: false,
-				apex_available: ["com.android.art"],
-			}
-		`)
-	})
-
-	t.Run("prebuilt_bootclasspath_fragment", func(t *testing.T) {
-		_ = preparers.RunTestWithBp(t, fmt.Sprintf(bpBase, `
-			image_name: "art",
-			contents: ["libfoo"],
-		`)+`
-			java_sdk_library_import {
-				name: "libfoo",
-				public: {
-					jars: ["libbar.jar"],
-				},
-				shared_library: false,
-				apex_available: ["com.android.art"],
-			}
-		`)
-	})
-}
-
-func TestDuplicateButEquivalentDeapexersFromPrebuiltApexes(t *testing.T) {
-	preparers := android.GroupFixturePreparers(
-		java.PrepareForTestWithJavaDefaultModules,
-		PrepareForTestWithApexBuildComponents,
-	)
-
-	errCtx := moduleErrorfTestCtx{}
-
-	bpBase := `
-		apex_set {
-			name: "com.android.myapex",
-			installable: true,
-			exported_bootclasspath_fragments: ["my-bootclasspath-fragment"],
-			set: "myapex.apks",
-		}
-
-		apex_set {
-			name: "com.android.myapex_compressed",
-			apex_name: "com.android.myapex",
-			installable: true,
-			exported_bootclasspath_fragments: ["my-bootclasspath-fragment"],
-			set: "myapex_compressed.apks",
-		}
-
-		prebuilt_bootclasspath_fragment {
-			name: "my-bootclasspath-fragment",
-			apex_available: [
-				"com.android.myapex",
-				"com.android.myapex_compressed",
-			],
-			hidden_api: {
-				annotation_flags: "annotation-flags.csv",
-				metadata: "metadata.csv",
-				index: "index.csv",
-				signature_patterns: "signature_patterns.csv",
-			},
-			%s
-		}
-	`
-
-	t.Run("java_import", func(t *testing.T) {
-		result := preparers.RunTestWithBp(t,
-			fmt.Sprintf(bpBase, `contents: ["libfoo"]`)+`
-			java_import {
-				name: "libfoo",
-				jars: ["libfoo.jar"],
-				apex_available: [
-					"com.android.myapex",
-					"com.android.myapex_compressed",
-				],
-			}
-		`)
-
-		module := result.Module("libfoo", "android_common_com.android.myapex")
-		usesLibraryDep := module.(java.UsesLibraryDependency)
-		android.AssertPathRelativeToTopEquals(t, "dex jar path",
-			"out/soong/.intermediates/prebuilt_com.android.myapex.deapexer/android_common/deapexer/javalib/libfoo.jar",
-			usesLibraryDep.DexJarBuildPath(errCtx).Path())
-	})
-
-	t.Run("java_sdk_library_import", func(t *testing.T) {
-		result := preparers.RunTestWithBp(t,
-			fmt.Sprintf(bpBase, `contents: ["libfoo"]`)+`
-			java_sdk_library_import {
-				name: "libfoo",
-				public: {
-					jars: ["libbar.jar"],
-				},
-				apex_available: [
-					"com.android.myapex",
-					"com.android.myapex_compressed",
-				],
-				compile_dex: true,
-			}
-		`)
-
-		module := result.Module("libfoo", "android_common_com.android.myapex")
-		usesLibraryDep := module.(java.UsesLibraryDependency)
-		android.AssertPathRelativeToTopEquals(t, "dex jar path",
-			"out/soong/.intermediates/prebuilt_com.android.myapex.deapexer/android_common/deapexer/javalib/libfoo.jar",
-			usesLibraryDep.DexJarBuildPath(errCtx).Path())
-	})
-
-	t.Run("prebuilt_bootclasspath_fragment", func(t *testing.T) {
-		_ = preparers.RunTestWithBp(t, fmt.Sprintf(bpBase, `
-			image_name: "art",
-			contents: ["libfoo"],
-		`)+`
-			java_sdk_library_import {
-				name: "libfoo",
-				public: {
-					jars: ["libbar.jar"],
-				},
-				apex_available: [
-					"com.android.myapex",
-					"com.android.myapex_compressed",
-				],
-				compile_dex: true,
-			}
-		`)
-	})
-}
-
 func TestUpdatable_should_set_min_sdk_version(t *testing.T) {
 	testApexError(t, `"myapex" .*: updatable: updatable APEXes should set min_sdk_version`, `
 		apex {
@@ -8505,12 +8231,16 @@
 				},
 			}
 
-			java_import {
-				name: "libfoo",
+		java_sdk_library_import {
+			name: "libfoo",
+			prefer: true,
+			public: {
 				jars: ["libfoo.jar"],
-				apex_available: ["myapex"],
-				permitted_packages: ["libfoo"],
-			}
+			},
+			apex_available: ["myapex"],
+			shared_library: false,
+			permitted_packages: ["libfoo"],
+		}
 		`, "", preparer, fragment)
 	})
 }
@@ -8890,7 +8620,7 @@
 		}),
 	)
 
-	m := ctx.ModuleForTests("prebuilt_myapex.apex.extractor", "android_common")
+	m := ctx.ModuleForTests("myapex", "android_common_myapex")
 
 	// Check extract_apks tool parameters.
 	extractedApex := m.Output("extracted/myapex.apks")
@@ -8931,7 +8661,7 @@
 		}),
 	)
 
-	m := ctx.ModuleForTests("prebuilt_myapex.apex.extractor", "android_common")
+	m := ctx.ModuleForTests("myapex", "android_common_myapex")
 
 	// Check extract_apks tool parameters. No native bridge arch expected
 	extractedApex := m.Output("extracted/myapex.apks")
@@ -9618,42 +9348,6 @@
 	ensureContains(t, androidMk, "LOCAL_REQUIRED_MODULES := foo.myapex foo-dexpreopt-arm64-apex@myapex@javalib@foo.jar@classes.odex foo-dexpreopt-arm64-apex@myapex@javalib@foo.jar@classes.vdex\n")
 }
 
-func TestAndroidMk_DexpreoptBuiltInstalledForApex_Prebuilt(t *testing.T) {
-	ctx := testApex(t, `
-		prebuilt_apex {
-			name: "myapex",
-			arch: {
-				arm64: {
-					src: "myapex-arm64.apex",
-				},
-				arm: {
-					src: "myapex-arm.apex",
-				},
-			},
-			exported_java_libs: ["foo"],
-		}
-
-		java_import {
-			name: "foo",
-			jars: ["foo.jar"],
-			apex_available: ["myapex"],
-		}
-	`,
-		dexpreopt.FixtureSetApexSystemServerJars("myapex:foo"),
-	)
-
-	prebuilt := ctx.ModuleForTests("myapex", "android_common_myapex").Module().(*Prebuilt)
-	entriesList := android.AndroidMkEntriesForTest(t, ctx, prebuilt)
-	mainModuleEntries := entriesList[0]
-	android.AssertArrayString(t,
-		"LOCAL_REQUIRED_MODULES",
-		mainModuleEntries.EntryMap["LOCAL_REQUIRED_MODULES"],
-		[]string{
-			"foo-dexpreopt-arm64-apex@myapex@javalib@foo.jar@classes.odex",
-			"foo-dexpreopt-arm64-apex@myapex@javalib@foo.jar@classes.vdex",
-		})
-}
-
 func TestAndroidMk_RequiredModules(t *testing.T) {
 	ctx := testApex(t, `
 		apex {
@@ -10583,14 +10277,15 @@
 	mod := ctx.ModuleForTests("myapex", "android_common_myapex")
 	s := mod.Rule("apexRule").Args["copy_commands"]
 	copyCmds := regexp.MustCompile(" *&& *").Split(s, -1)
-	if len(copyCmds) != 12 {
-		t.Fatalf("Expected 12 commands, got %d in:\n%s", len(copyCmds), s)
+	if len(copyCmds) != 14 {
+		t.Fatalf("Expected 14 commands, got %d in:\n%s", len(copyCmds), s)
 	}
 
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/aconfig_flags.pb .*/image.apex/etc/aconfig_flags.pb")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/package.map .*/image.apex/etc/package.map")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.map .*/image.apex/etc/flag.map")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.val .*/image.apex/etc/flag.val")
+	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.info.*/image.apex/etc/flag.info")
 
 	inputs := []string{
 		"my_aconfig_declarations_foo/intermediate.pb",
@@ -10600,6 +10295,7 @@
 	VerifyAconfigRule(t, &mod, "create_aconfig_package_map_file", inputs, "android_common_myapex/package.map", "myapex", "package_map")
 	VerifyAconfigRule(t, &mod, "create_aconfig_flag_map_file", inputs, "android_common_myapex/flag.map", "myapex", "flag_map")
 	VerifyAconfigRule(t, &mod, "create_aconfig_flag_val_file", inputs, "android_common_myapex/flag.val", "myapex", "flag_val")
+	VerifyAconfigRule(t, &mod, "create_aconfig_flag_info_file", inputs, "android_common_myapex/flag.info", "myapex", "flag_info")
 }
 
 func TestAconfigFilesJavaAndCcDeps(t *testing.T) {
@@ -10718,14 +10414,15 @@
 	mod := ctx.ModuleForTests("myapex", "android_common_myapex")
 	s := mod.Rule("apexRule").Args["copy_commands"]
 	copyCmds := regexp.MustCompile(" *&& *").Split(s, -1)
-	if len(copyCmds) != 16 {
-		t.Fatalf("Expected 16 commands, got %d in:\n%s", len(copyCmds), s)
+	if len(copyCmds) != 18 {
+		t.Fatalf("Expected 18 commands, got %d in:\n%s", len(copyCmds), s)
 	}
 
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/aconfig_flags.pb .*/image.apex/etc/aconfig_flags.pb")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/package.map .*/image.apex/etc/package.map")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.map .*/image.apex/etc/flag.map")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.val .*/image.apex/etc/flag.val")
+	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.info .*/image.apex/etc/flag.info")
 
 	inputs := []string{
 		"my_aconfig_declarations_foo/intermediate.pb",
@@ -10736,6 +10433,7 @@
 	VerifyAconfigRule(t, &mod, "create_aconfig_package_map_file", inputs, "android_common_myapex/package.map", "myapex", "package_map")
 	VerifyAconfigRule(t, &mod, "create_aconfig_flag_map_file", inputs, "android_common_myapex/flag.map", "myapex", "flag_map")
 	VerifyAconfigRule(t, &mod, "create_aconfig_flag_val_file", inputs, "android_common_myapex/flag.val", "myapex", "flag_val")
+	VerifyAconfigRule(t, &mod, "create_aconfig_flag_info_file", inputs, "android_common_myapex/flag.info", "myapex", "flag_info")
 }
 
 func TestAconfigFilesRustDeps(t *testing.T) {
@@ -10886,14 +10584,15 @@
 	mod := ctx.ModuleForTests("myapex", "android_common_myapex")
 	s := mod.Rule("apexRule").Args["copy_commands"]
 	copyCmds := regexp.MustCompile(" *&& *").Split(s, -1)
-	if len(copyCmds) != 36 {
-		t.Fatalf("Expected 36 commands, got %d in:\n%s", len(copyCmds), s)
+	if len(copyCmds) != 38 {
+		t.Fatalf("Expected 38 commands, got %d in:\n%s", len(copyCmds), s)
 	}
 
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/aconfig_flags.pb .*/image.apex/etc/aconfig_flags.pb")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/package.map .*/image.apex/etc/package.map")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.map .*/image.apex/etc/flag.map")
 	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.val .*/image.apex/etc/flag.val")
+	ensureListContainsMatch(t, copyCmds, "^cp -f .*/flag.info .*/image.apex/etc/flag.info")
 
 	inputs := []string{
 		"my_aconfig_declarations_foo/intermediate.pb",
@@ -10905,6 +10604,7 @@
 	VerifyAconfigRule(t, &mod, "create_aconfig_package_map_file", inputs, "android_common_myapex/package.map", "myapex", "package_map")
 	VerifyAconfigRule(t, &mod, "create_aconfig_flag_map_file", inputs, "android_common_myapex/flag.map", "myapex", "flag_map")
 	VerifyAconfigRule(t, &mod, "create_aconfig_flag_val_file", inputs, "android_common_myapex/flag.val", "myapex", "flag_val")
+	VerifyAconfigRule(t, &mod, "create_aconfig_flag_info_file", inputs, "android_common_myapex/flag.info", "myapex", "flag_info")
 }
 
 func VerifyAconfigRule(t *testing.T, mod *android.TestingModule, desc string, inputs []string, output string, container string, file_type string) {
@@ -11233,12 +10933,12 @@
 		{
 			desc:                      "Prebuilt apex prebuilt_com.android.foo is selected, profile should come from .prof deapexed from the prebuilt",
 			selectedApexContributions: "foo.prebuilt.contributions",
-			expectedBootJar:           "out/soong/.intermediates/prebuilt_com.android.foo.deapexer/android_common/deapexer/javalib/framework-foo.jar",
+			expectedBootJar:           "out/soong/.intermediates/prebuilt_com.android.foo/android_common_com.android.foo/deapexer/javalib/framework-foo.jar",
 		},
 		{
 			desc:                      "Prebuilt apex prebuilt_com.android.foo.v2 is selected, profile should come from .prof deapexed from the prebuilt",
 			selectedApexContributions: "foo.prebuilt.v2.contributions",
-			expectedBootJar:           "out/soong/.intermediates/prebuilt_com.android.foo.v2.deapexer/android_common/deapexer/javalib/framework-foo.jar",
+			expectedBootJar:           "out/soong/.intermediates/com.android.foo.v2/android_common_com.android.foo/deapexer/javalib/framework-foo.jar",
 		},
 	}
 
@@ -11930,3 +11630,110 @@
 		)
 	})
 }
+
+func TestSdkLibraryTransitiveClassLoaderContext(t *testing.T) {
+	// This test case tests that listing the impl lib instead of the top level java_sdk_library
+	// in libs of android_app and java_library does not lead to class loader context device/host
+	// path mismatch errors.
+	android.GroupFixturePreparers(
+		prepareForApexTest,
+		android.PrepareForIntegrationTestWithAndroid,
+		PrepareForTestWithApexBuildComponents,
+		android.FixtureModifyEnv(func(env map[string]string) {
+			env["DISABLE_CONTAINER_CHECK"] = "true"
+		}),
+		withFiles(filesForSdkLibrary),
+		android.FixtureMergeMockFs(android.MockFS{
+			"system/sepolicy/apex/com.android.foo30-file_contexts": nil,
+		}),
+	).RunTestWithBp(t, `
+		apex {
+		name: "com.android.foo30",
+		key: "myapex.key",
+		updatable: true,
+		bootclasspath_fragments: [
+			"foo-bootclasspath-fragment",
+		],
+		java_libs: [
+			"bar",
+		],
+		apps: [
+			"bar-app",
+		],
+		min_sdk_version: "30",
+		}
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+		bootclasspath_fragment {
+			name: "foo-bootclasspath-fragment",
+			contents: [
+				"framework-foo",
+			],
+			apex_available: [
+				"com.android.foo30",
+			],
+			hidden_api: {
+				split_packages: ["*"]
+			},
+		}
+
+		java_sdk_library {
+			name: "framework-foo",
+			srcs: [
+				"A.java"
+			],
+			unsafe_ignore_missing_latest_api: true,
+			apex_available: [
+				"com.android.foo30",
+			],
+			compile_dex: true,
+			sdk_version: "core_current",
+			shared_library: false,
+		}
+
+		java_library {
+			name: "bar",
+			srcs: [
+				"A.java"
+			],
+			libs: [
+				"framework-foo.impl",
+			],
+			apex_available: [
+				"com.android.foo30",
+			],
+			sdk_version: "core_current",
+		}
+
+		java_library {
+			name: "baz",
+			srcs: [
+				"A.java"
+			],
+			libs: [
+				"bar",
+			],
+			sdk_version: "core_current",
+		}
+
+		android_app {
+			name: "bar-app",
+			srcs: [
+				"A.java"
+			],
+			libs: [
+				"baz",
+				"framework-foo.impl",
+			],
+			apex_available: [
+				"com.android.foo30",
+			],
+			sdk_version: "core_current",
+			min_sdk_version: "30",
+			manifest: "AndroidManifest.xml",
+		}
+       `)
+}
diff --git a/apex/bootclasspath_fragment_test.go b/apex/bootclasspath_fragment_test.go
index df7857f..e44d3f5 100644
--- a/apex/bootclasspath_fragment_test.go
+++ b/apex/bootclasspath_fragment_test.go
@@ -398,11 +398,20 @@
 
 			// Make sure that a preferred prebuilt with consistent contents doesn't affect the apex.
 			addPrebuilt(true, "foo", "bar"),
+			android.FixtureMergeMockFs(android.MockFS{
+				"apex_contributions/Android.bp": []byte(`
+				apex_contributions {
+					name: "prebuilt_art_contributions",
+					contents: ["prebuilt_com.android.art"],
+					api_domain: "com.android.art",
+				}
+			`)}),
+			android.PrepareForTestWithBuildFlag("RELEASE_APEX_CONTRIBUTIONS_ART", "prebuilt_art_contributions"),
 
 			java.FixtureSetBootImageInstallDirOnDevice("art", "apex/com.android.art/javalib"),
 		).RunTest(t)
 
-		ensureExactDeapexedContents(t, result.TestContext, "prebuilt_com.android.art", "android_common", []string{
+		ensureExactDeapexedContents(t, result.TestContext, "prebuilt_com.android.art", "android_common_com.android.art", []string{
 			"etc/boot-image.prof",
 			"javalib/bar.jar",
 			"javalib/foo.jar",
@@ -495,6 +504,7 @@
 		java.FixtureConfigureBootJars("com.android.art:foo", "com.android.art:bar"),
 		dexpreopt.FixtureSetTestOnlyArtBootImageJars("com.android.art:foo", "com.android.art:bar"),
 		java.FixtureSetBootImageInstallDirOnDevice("art", "apex/com.android.art/javalib"),
+		android.PrepareForTestWithBuildFlag("RELEASE_APEX_CONTRIBUTIONS_ART", "prebuilt_art_contributions"),
 	)
 
 	bp := `
@@ -552,6 +562,12 @@
 			src: "com.mycompany.android.art.apex",
 			exported_bootclasspath_fragments: ["art-bootclasspath-fragment"],
 		}
+	
+		apex_contributions {
+			name: "prebuilt_art_contributions",
+			contents: ["prebuilt_com.android.art"],
+			api_domain: "com.android.art",
+		}
 	`
 
 	t.Run("disabled alternative APEX", func(t *testing.T) {
@@ -561,27 +577,18 @@
 			`all_apex_contributions`,
 			`dex2oatd`,
 			`prebuilt_art-bootclasspath-fragment`,
-			`prebuilt_com.android.art.apex.selector`,
-			`prebuilt_com.android.art.deapexer`,
 		})
 
 		java.CheckModuleDependencies(t, result.TestContext, "art-bootclasspath-fragment", "android_common_com.android.art", []string{
 			`all_apex_contributions`,
 			`dex2oatd`,
 			`prebuilt_bar`,
-			`prebuilt_com.android.art.deapexer`,
 			`prebuilt_foo`,
 		})
 
 		module := result.ModuleForTests("dex_bootjars", "android_common")
 		checkCopiesToPredefinedLocationForArt(t, result.Config, module, "bar", "foo")
 	})
-
-	t.Run("enabled alternative APEX", func(t *testing.T) {
-		preparers.ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(
-			"Multiple installable prebuilt APEXes provide ambiguous deapexers: prebuilt_com.android.art and prebuilt_com.mycompany.android.art")).
-			RunTestWithBp(t, fmt.Sprintf(bp, ""))
-	})
 }
 
 // checkCopiesToPredefinedLocationForArt checks that the supplied modules are copied to the
diff --git a/apex/builder.go b/apex/builder.go
index da9e47e..244119b 100644
--- a/apex/builder.go
+++ b/apex/builder.go
@@ -96,6 +96,7 @@
 	{"package.map", "create_aconfig_package_map_file", "package_map"},
 	{"flag.map", "create_aconfig_flag_map_file", "flag_map"},
 	{"flag.val", "create_aconfig_flag_val_file", "flag_val"},
+	{"flag.info", "create_aconfig_flag_info_file", "flag_info"},
 }
 
 var (
diff --git a/apex/deapexer.go b/apex/deapexer.go
index a673108..3b8233d 100644
--- a/apex/deapexer.go
+++ b/apex/deapexer.go
@@ -15,37 +15,9 @@
 package apex
 
 import (
-	"strings"
-
 	"android/soong/android"
 )
 
-// Contains 'deapexer' a private module type used by 'prebuilt_apex' to make dex files contained
-// within a .apex file referenced by `prebuilt_apex` available for use by their associated
-// `java_import` modules.
-//
-// An 'apex' module references `java_library` modules from which .dex files are obtained that are
-// stored in the resulting `.apex` file. The resulting `.apex` file is then made available as a
-// prebuilt by referencing it from a `prebuilt_apex`. For each such `java_library` that is used by
-// modules outside the `.apex` file a `java_import` prebuilt is made available referencing a jar
-// that contains the Java classes.
-//
-// When building a Java module type, e.g. `java_module` or `android_app` against such prebuilts the
-// `java_import` provides the classes jar  (jar containing `.class` files) against which the
-// module's `.java` files are compiled. That classes jar usually contains only stub classes. The
-// resulting classes jar is converted into a dex jar (jar containing `.dex` files). Then if
-// necessary the dex jar is further processed by `dexpreopt` to produce an optimized form of the
-// library specific to the current Android version. This process requires access to implementation
-// dex jars for each `java_import`. The `java_import` will obtain the implementation dex jar from
-// the `.apex` file in the associated `prebuilt_apex`.
-//
-// This is intentionally not registered by name as it is not intended to be used from within an
-// `Android.bp` file.
-
-// DeapexerProperties specifies the properties supported by the deapexer module.
-//
-// As these are never intended to be supplied in a .bp file they use a different naming convention
-// to make it clear that they are different.
 type DeapexerProperties struct {
 	// List of common modules that may need access to files exported by this module.
 	//
@@ -72,46 +44,9 @@
 	Selected_apex *string `android:"path" blueprint:"mutated"`
 }
 
-type Deapexer struct {
-	android.ModuleBase
-
-	properties             DeapexerProperties
-	selectedApexProperties SelectedApexProperties
-
-	inputApex android.Path
-}
-
-// Returns the name of the deapexer module corresponding to an APEX module with the given name.
-func deapexerModuleName(apexModuleName string) string {
-	return apexModuleName + ".deapexer"
-}
-
-// Returns the name of the APEX module corresponding to an deapexer module with
-// the given name. This reverses deapexerModuleName.
-func apexModuleName(deapexerModuleName string) string {
-	return strings.TrimSuffix(deapexerModuleName, ".deapexer")
-}
-
-func privateDeapexerFactory() android.Module {
-	module := &Deapexer{}
-	module.AddProperties(&module.properties, &module.selectedApexProperties)
-	android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
-	return module
-}
-
-func (p *Deapexer) DepsMutator(ctx android.BottomUpMutatorContext) {
-	// Add dependencies from the java modules to which this exports files from the `.apex` file onto
-	// this module so that they can access the `DeapexerInfo` object that this provides.
-	// TODO: b/308174306 - Once all the mainline modules have been flagged, drop this dependency edge
-	for _, lib := range p.properties.CommonModules {
-		dep := prebuiltApexExportedModuleName(ctx, lib)
-		ctx.AddReverseDependency(ctx.Module(), android.DeapexerTag, dep)
-	}
-}
-
-func (p *Deapexer) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-	p.inputApex = android.OptionalPathForModuleSrc(ctx, p.selectedApexProperties.Selected_apex).Path()
-
+// deapex creates the build rules to deapex a prebuilt .apex file
+// it returns a pointer to a DeapexerInfo object
+func deapex(ctx android.ModuleContext, apexFile android.Path, deapexerProps DeapexerProperties) *android.DeapexerInfo {
 	// Create and remember the directory into which the .apex file's contents will be unpacked.
 	deapexerOutput := android.PathForModuleOut(ctx, "deapexer")
 
@@ -119,7 +54,7 @@
 
 	// Create mappings from apex relative path to the extracted file's path.
 	exportedPaths := make(android.Paths, 0, len(exports))
-	for _, path := range p.properties.ExportedFiles {
+	for _, path := range deapexerProps.ExportedFiles {
 		// Populate the exports that this makes available.
 		extractedPath := deapexerOutput.Join(ctx, path)
 		exports[path] = extractedPath
@@ -131,9 +66,8 @@
 	// apex relative path to extracted file path available for other modules.
 	if len(exports) > 0 {
 		// Make the information available for other modules.
-		di := android.NewDeapexerInfo(apexModuleName(ctx.ModuleName()), exports, p.properties.CommonModules)
-		di.AddDexpreoptProfileGuidedExportedModuleNames(p.properties.DexpreoptProfileGuidedModules...)
-		android.SetProvider(ctx, android.DeapexerProvider, di)
+		di := android.NewDeapexerInfo(ctx.ModuleName(), exports, deapexerProps.CommonModules)
+		di.AddDexpreoptProfileGuidedExportedModuleNames(deapexerProps.DexpreoptProfileGuidedModules...)
 
 		// Create a sorted list of the files that this exports.
 		exportedPaths = android.SortedUniquePaths(exportedPaths)
@@ -147,11 +81,13 @@
 			BuiltTool("deapexer").
 			BuiltTool("debugfs").
 			BuiltTool("fsck.erofs").
-			Input(p.inputApex).
+			Input(apexFile).
 			Text(deapexerOutput.String())
 		for _, p := range exportedPaths {
 			command.Output(p.(android.WritablePath))
 		}
-		builder.Build("deapexer", "deapex "+apexModuleName(ctx.ModuleName()))
+		builder.Build("deapexer", "deapex "+ctx.ModuleName())
+		return &di
 	}
+	return nil
 }
diff --git a/apex/dexpreopt_bootjars_test.go b/apex/dexpreopt_bootjars_test.go
index d8ee4ba..4feade8 100644
--- a/apex/dexpreopt_bootjars_test.go
+++ b/apex/dexpreopt_bootjars_test.go
@@ -127,16 +127,29 @@
 			src: "com.android.art-arm.apex",
 			exported_bootclasspath_fragments: ["art-bootclasspath-fragment"],
 		}
+
+		apex_contributions {
+			name: "prebuilt_art_contributions",
+			contents: ["prebuilt_com.android.art"],
+			api_domain: "com.android.art",
+		}
 	`
 
-	result := android.GroupFixturePreparers(
+	fixture := android.GroupFixturePreparers(
 		java.PrepareForTestWithDexpreopt,
 		java.PrepareForTestWithJavaSdkLibraryFiles,
 		java.FixtureWithLastReleaseApis("foo"),
 		java.FixtureConfigureBootJars("com.android.art:core-oj", "platform:foo", "system_ext:bar", "platform:baz"),
 		PrepareForTestWithApexBuildComponents,
 		prepareForTestWithArtApex,
-	).RunTestWithBp(t, fmt.Sprintf(bp, preferPrebuilt))
+	)
+	if preferPrebuilt {
+		fixture = android.GroupFixturePreparers(
+			fixture,
+			android.PrepareForTestWithBuildFlag("RELEASE_APEX_CONTRIBUTIONS_ART", "prebuilt_art_contributions"),
+		)
+	}
+	result := fixture.RunTestWithBp(t, fmt.Sprintf(bp, preferPrebuilt))
 
 	dexBootJars := result.ModuleForTests("dex_bootjars", "android_common")
 	rule := dexBootJars.Output(ruleFile)
@@ -200,7 +213,7 @@
 		"out/soong/dexpreopt_arm64/dex_bootjars_input/foo.jar",
 		"out/soong/dexpreopt_arm64/dex_bootjars_input/bar.jar",
 		"out/soong/dexpreopt_arm64/dex_bootjars_input/baz.jar",
-		"out/soong/.intermediates/prebuilt_com.android.art.deapexer/android_common/deapexer/etc/boot-image.prof",
+		"out/soong/.intermediates/prebuilt_com.android.art/android_common_com.android.art/deapexer/etc/boot-image.prof",
 		"out/soong/.intermediates/default/java/dex_bootjars/android_common/boot/boot.prof",
 		"out/soong/dexpreopt/uffd_gc_flag.txt",
 	}
@@ -384,12 +397,12 @@
 		{
 			desc:                         "Prebuilt apex prebuilt_com.android.art is selected, profile should come from .prof deapexed from the prebuilt",
 			selectedArtApexContributions: "art.prebuilt.contributions",
-			expectedProfile:              "out/soong/.intermediates/prebuilt_com.android.art.deapexer/android_common/deapexer/etc/boot-image.prof",
+			expectedProfile:              "out/soong/.intermediates/prebuilt_com.android.art/android_common_com.android.art/deapexer/etc/boot-image.prof",
 		},
 		{
 			desc:                         "Prebuilt apex prebuilt_com.android.art.v2 is selected, profile should come from .prof deapexed from the prebuilt",
 			selectedArtApexContributions: "art.prebuilt.v2.contributions",
-			expectedProfile:              "out/soong/.intermediates/prebuilt_com.android.art.v2.deapexer/android_common/deapexer/etc/boot-image.prof",
+			expectedProfile:              "out/soong/.intermediates/com.android.art.v2/android_common_com.android.art/deapexer/etc/boot-image.prof",
 		},
 	}
 	for _, tc := range testCases {
diff --git a/apex/prebuilt.go b/apex/prebuilt.go
index 792b571..9cd5688 100644
--- a/apex/prebuilt.go
+++ b/apex/prebuilt.go
@@ -107,11 +107,6 @@
 	// from PRODUCT_PACKAGES.
 	Overrides []string
 
-	// List of java libraries that are embedded inside this prebuilt APEX bundle and for which this
-	// APEX bundle will create an APEX variant and provide dex implementation jars for use by
-	// dexpreopt and boot jars package check.
-	Exported_java_libs []string
-
 	// List of bootclasspath fragments inside this prebuilt APEX bundle and for which this APEX
 	// bundle will create an APEX variant.
 	Exported_bootclasspath_fragments []string
@@ -199,9 +194,8 @@
 }
 
 // If this prebuilt has system server jar, create the rules to dexpreopt it and install it alongside the prebuilt apex
-func (p *prebuiltCommon) dexpreoptSystemServerJars(ctx android.ModuleContext) {
-	// If this apex does not export anything, return
-	if !p.hasExportedDeps() {
+func (p *prebuiltCommon) dexpreoptSystemServerJars(ctx android.ModuleContext, di *android.DeapexerInfo) {
+	if di == nil {
 		return
 	}
 	// If this prebuilt apex has not been selected, return
@@ -210,10 +204,7 @@
 	}
 	// Use apex_name to determine the api domain of this prebuilt apex
 	apexName := p.ApexVariationName()
-	di, err := android.FindDeapexerProviderForModule(ctx)
-	if err != nil {
-		ctx.ModuleErrorf(err.Error())
-	}
+	// TODO: do not compute twice
 	dc := dexpreopt.GetGlobalConfig(ctx)
 	systemServerJarList := dc.AllApexSystemServerJars(ctx)
 
@@ -262,29 +253,8 @@
 	return entriesList
 }
 
-// prebuiltApexModuleCreator defines the methods that need to be implemented by prebuilt_apex and
-// apex_set in order to create the modules needed to provide access to the prebuilt .apex file.
-type prebuiltApexModuleCreator interface {
-	createPrebuiltApexModules(ctx android.BottomUpMutatorContext)
-}
-
-// prebuiltApexModuleCreatorMutator is the mutator responsible for invoking the
-// prebuiltApexModuleCreator's createPrebuiltApexModules method.
-//
-// It is registered as a pre-arch mutator as it must run after the ComponentDepsMutator because it
-// will need to access dependencies added by that (exported modules) but must run before the
-// DepsMutator so that the deapexer module it creates can add dependencies onto itself from the
-// exported modules.
-func prebuiltApexModuleCreatorMutator(ctx android.BottomUpMutatorContext) {
-	module := ctx.Module()
-	if creator, ok := module.(prebuiltApexModuleCreator); ok {
-		creator.createPrebuiltApexModules(ctx)
-	}
-}
-
 func (p *prebuiltCommon) hasExportedDeps() bool {
-	return len(p.prebuiltCommonProperties.Exported_java_libs) > 0 ||
-		len(p.prebuiltCommonProperties.Exported_bootclasspath_fragments) > 0 ||
+	return len(p.prebuiltCommonProperties.Exported_bootclasspath_fragments) > 0 ||
 		len(p.prebuiltCommonProperties.Exported_systemserverclasspath_fragments) > 0
 }
 
@@ -292,11 +262,6 @@
 func (p *prebuiltCommon) prebuiltApexContentsDeps(ctx android.BottomUpMutatorContext) {
 	module := ctx.Module()
 
-	for _, dep := range p.prebuiltCommonProperties.Exported_java_libs {
-		prebuiltDep := android.PrebuiltNameFromSource(dep)
-		ctx.AddDependency(module, exportedJavaLibTag, prebuiltDep)
-	}
-
 	for _, dep := range p.prebuiltCommonProperties.Exported_bootclasspath_fragments {
 		prebuiltDep := android.PrebuiltNameFromSource(dep)
 		ctx.AddDependency(module, exportedBootclasspathFragmentTag, prebuiltDep)
@@ -414,34 +379,6 @@
 	}
 }
 
-// prebuiltApexSelectorModule is a private module type that is only created by the prebuilt_apex
-// module. It selects the apex to use and makes it available for use by prebuilt_apex and the
-// deapexer.
-type prebuiltApexSelectorModule struct {
-	android.ModuleBase
-
-	apexFileProperties ApexFileProperties
-
-	inputApex android.Path
-}
-
-func privateApexSelectorModuleFactory() android.Module {
-	module := &prebuiltApexSelectorModule{}
-	module.AddProperties(
-		&module.apexFileProperties,
-	)
-	android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
-	return module
-}
-
-func (p *prebuiltApexSelectorModule) Srcs() android.Paths {
-	return android.Paths{p.inputApex}
-}
-
-func (p *prebuiltApexSelectorModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-	p.inputApex = android.SingleSourcePathFromSupplier(ctx, p.apexFileProperties.prebuiltApexSelector, "src")
-}
-
 type Prebuilt struct {
 	prebuiltCommon
 
@@ -484,11 +421,11 @@
 // to use methods on it that are specific to the current module.
 //
 // See the ApexFileProperties.Src property.
-func (p *ApexFileProperties) prebuiltApexSelector(ctx android.BaseModuleContext, prebuilt android.Module) []string {
+func (p *ApexFileProperties) prebuiltApexSelector(ctx android.BaseModuleContext, prebuilt android.Module) string {
 	multiTargets := prebuilt.MultiTargets()
 	if len(multiTargets) != 1 {
 		ctx.OtherModuleErrorf(prebuilt, "compile_multilib shouldn't be \"both\" for prebuilt_apex")
-		return nil
+		return ""
 	}
 	var src string
 	switch multiTargets[0].Arch.ArchType {
@@ -521,7 +458,7 @@
 		// logic from reporting a more general, less useful message.
 	}
 
-	return []string{src}
+	return src
 }
 
 type PrebuiltProperties struct {
@@ -538,35 +475,19 @@
 func PrebuiltFactory() android.Module {
 	module := &Prebuilt{}
 	module.AddProperties(&module.properties)
-	module.initPrebuiltCommon(module, &module.properties.PrebuiltCommonProperties)
+	module.prebuiltCommon.prebuiltCommonProperties = &module.properties.PrebuiltCommonProperties
+
+	// init the module as a prebuilt
+	// even though this module type has srcs, use `InitPrebuiltModuleWithoutSrcs`, since the existing
+	// InitPrebuiltModule* are not friendly with Sources of Configurable type.
+	// The actual src will be evaluated in GenerateAndroidBuildActions.
+	android.InitPrebuiltModuleWithoutSrcs(module)
+	android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
 
 	return module
 }
 
-func createApexSelectorModule(ctx android.BottomUpMutatorContext, name string, apexFileProperties *ApexFileProperties) {
-	props := struct {
-		Name *string
-	}{
-		Name: proptools.StringPtr(name),
-	}
-
-	ctx.CreateModule(privateApexSelectorModuleFactory,
-		&props,
-		apexFileProperties,
-	)
-}
-
-// createDeapexerModuleIfNeeded will create a deapexer module if it is needed.
-//
-// A deapexer module is only needed when the prebuilt apex specifies one or more modules in either
-// the `exported_java_libs` or `exported_bootclasspath_fragments` properties as that indicates that
-// the listed modules need access to files from within the prebuilt .apex file.
-func (p *prebuiltCommon) createDeapexerModuleIfNeeded(ctx android.BottomUpMutatorContext, deapexerName string, apexFileSource string) {
-	// Only create the deapexer module if it is needed.
-	if !p.hasExportedDeps() {
-		return
-	}
-
+func (p *prebuiltCommon) getDeapexerPropertiesIfNeeded(ctx android.ModuleContext) DeapexerProperties {
 	// Compute the deapexer properties from the transitive dependencies of this module.
 	commonModules := []string{}
 	dexpreoptProfileGuidedModules := []string{}
@@ -600,7 +521,7 @@
 	})
 
 	// Create properties for deapexer module.
-	deapexerProperties := &DeapexerProperties{
+	deapexerProperties := DeapexerProperties{
 		// Remove any duplicates from the common modules lists as a module may be included via a direct
 		// dependency as well as transitive ones.
 		CommonModules:                 android.SortedUniqueStrings(commonModules),
@@ -609,22 +530,7 @@
 
 	// Populate the exported files property in a fixed order.
 	deapexerProperties.ExportedFiles = android.SortedUniqueStrings(exportedFiles)
-
-	props := struct {
-		Name          *string
-		Selected_apex *string
-	}{
-		Name:          proptools.StringPtr(deapexerName),
-		Selected_apex: proptools.StringPtr(apexFileSource),
-	}
-	ctx.CreateModule(privateDeapexerFactory,
-		&props,
-		deapexerProperties,
-	)
-}
-
-func apexSelectorModuleName(baseModuleName string) string {
-	return baseModuleName + ".apex.selector"
+	return deapexerProperties
 }
 
 func prebuiltApexExportedModuleName(ctx android.BottomUpMutatorContext, name string) string {
@@ -666,97 +572,50 @@
 var _ android.RequiresFilesFromPrebuiltApexTag = exportedDependencyTag{}
 
 var (
-	exportedJavaLibTag                       = exportedDependencyTag{name: "exported_java_libs"}
 	exportedBootclasspathFragmentTag         = exportedDependencyTag{name: "exported_bootclasspath_fragments"}
 	exportedSystemserverclasspathFragmentTag = exportedDependencyTag{name: "exported_systemserverclasspath_fragments"}
 )
 
-var _ prebuiltApexModuleCreator = (*Prebuilt)(nil)
-
-// createPrebuiltApexModules creates modules necessary to export files from the prebuilt apex to the
-// build.
-//
-// If this needs to make files from within a `.apex` file available for use by other Soong modules,
-// e.g. make dex implementation jars available for java_import modules listed in exported_java_libs,
-// it does so as follows:
-//
-//  1. It creates a `deapexer` module that actually extracts the files from the `.apex` file and
-//     makes them available for use by other modules, at both Soong and ninja levels.
-//
-//  2. It adds a dependency onto those modules and creates an apex specific variant similar to what
-//     an `apex` module does. That ensures that code which looks for specific apex variant, e.g.
-//     dexpreopt, will work the same way from source and prebuilt.
-//
-//  3. The `deapexer` module adds a dependency from the modules that require the exported files onto
-//     itself so that they can retrieve the file paths to those files.
-//
-// It also creates a child module `selector` that is responsible for selecting the appropriate
-// input apex for both the prebuilt_apex and the deapexer. That is needed for a couple of reasons:
-//
-//  1. To dedup the selection logic so it only runs in one module.
-//
-//  2. To allow the deapexer to be wired up to a different source for the input apex, e.g. an
-//     `apex_set`.
-//
-//     prebuilt_apex
-//     /      |      \
-//     /         |         \
-//     V            V            V
-//     selector  <---  deapexer  <---  exported java lib
-func (p *Prebuilt) createPrebuiltApexModules(ctx android.BottomUpMutatorContext) {
-	apexSelectorModuleName := apexSelectorModuleName(p.Name())
-	createApexSelectorModule(ctx, apexSelectorModuleName, &p.properties.ApexFileProperties)
-
-	apexFileSource := ":" + apexSelectorModuleName
-	p.createDeapexerModuleIfNeeded(ctx, deapexerModuleName(p.Name()), apexFileSource)
-
-	// Add a source reference to retrieve the selected apex from the selector module.
-	p.prebuiltCommonProperties.Selected_apex = proptools.StringPtr(apexFileSource)
-}
-
 func (p *Prebuilt) ComponentDepsMutator(ctx android.BottomUpMutatorContext) {
 	p.prebuiltApexContentsDeps(ctx)
 }
 
-func (p *prebuiltCommon) DepsMutator(ctx android.BottomUpMutatorContext) {
-	if p.hasExportedDeps() {
-		// Create a dependency from the prebuilt apex (prebuilt_apex/apex_set) to the internal deapexer module
-		// The deapexer will return a provider which will be used to determine the exported artfifacts from this prebuilt.
-		ctx.AddDependency(ctx.Module(), android.DeapexerTag, deapexerModuleName(p.Name()))
-	}
-}
-
 var _ ApexInfoMutator = (*Prebuilt)(nil)
 
 func (p *Prebuilt) ApexInfoMutator(mctx android.TopDownMutatorContext) {
 	p.apexInfoMutator(mctx)
 }
 
+// creates the build rules to deapex the prebuilt, and returns a deapexerInfo
+func (p *prebuiltCommon) getDeapexerInfo(ctx android.ModuleContext, apexFile android.Path) *android.DeapexerInfo {
+	if !p.hasExportedDeps() {
+		// nothing to do
+		return nil
+	}
+	deapexerProps := p.getDeapexerPropertiesIfNeeded(ctx)
+	return deapex(ctx, apexFile, deapexerProps)
+}
+
 // Set a provider containing information about the jars and .prof provided by the apex
 // Apexes built from prebuilts retrieve this information by visiting its internal deapexer module
 // Used by dex_bootjars to generate the boot image
-func (p *prebuiltCommon) provideApexExportsInfo(ctx android.ModuleContext) {
-	if !p.hasExportedDeps() {
-		// nothing to do
+func (p *prebuiltCommon) provideApexExportsInfo(ctx android.ModuleContext, di *android.DeapexerInfo) {
+	if di == nil {
 		return
 	}
-	if di, err := android.FindDeapexerProviderForModule(ctx); err == nil {
-		javaModuleToDexPath := map[string]android.Path{}
-		for _, commonModule := range di.GetExportedModuleNames() {
-			if dex := di.PrebuiltExportPath(java.ApexRootRelativePathToJavaLib(commonModule)); dex != nil {
-				javaModuleToDexPath[commonModule] = dex
-			}
+	javaModuleToDexPath := map[string]android.Path{}
+	for _, commonModule := range di.GetExportedModuleNames() {
+		if dex := di.PrebuiltExportPath(java.ApexRootRelativePathToJavaLib(commonModule)); dex != nil {
+			javaModuleToDexPath[commonModule] = dex
 		}
-
-		exports := android.ApexExportsInfo{
-			ApexName:                      p.ApexVariationName(),
-			ProfilePathOnHost:             di.PrebuiltExportPath(java.ProfileInstallPathInApex),
-			LibraryNameToDexJarPathOnHost: javaModuleToDexPath,
-		}
-		android.SetProvider(ctx, android.ApexExportsInfoProvider, exports)
-	} else {
-		ctx.ModuleErrorf(err.Error())
 	}
+
+	exports := android.ApexExportsInfo{
+		ApexName:                      p.ApexVariationName(),
+		ProfilePathOnHost:             di.PrebuiltExportPath(java.ProfileInstallPathInApex),
+		LibraryNameToDexJarPathOnHost: javaModuleToDexPath,
+	}
+	android.SetProvider(ctx, android.ApexExportsInfoProvider, exports)
 }
 
 // Set prebuiltInfoProvider. This will be used by `apex_prebuiltinfo_singleton` to print out a metadata file
@@ -792,7 +651,7 @@
 
 	p.apexKeysPath = writeApexKeys(ctx, p)
 	// TODO(jungjw): Check the key validity.
-	p.inputApex = android.OptionalPathForModuleSrc(ctx, p.prebuiltCommonProperties.Selected_apex).Path()
+	p.inputApex = android.PathForModuleSrc(ctx, p.properties.prebuiltApexSelector(ctx, ctx.Module()))
 	p.installDir = android.PathForModuleInstall(ctx, "apex")
 	p.installFilename = p.InstallFilename()
 	if !strings.HasSuffix(p.installFilename, imageApexSuffix) {
@@ -810,11 +669,13 @@
 		return
 	}
 
+	deapexerInfo := p.getDeapexerInfo(ctx, p.inputApex)
+
 	// dexpreopt any system server jars if present
-	p.dexpreoptSystemServerJars(ctx)
+	p.dexpreoptSystemServerJars(ctx, deapexerInfo)
 
 	// provide info used for generating the boot image
-	p.provideApexExportsInfo(ctx)
+	p.provideApexExportsInfo(ctx, deapexerInfo)
 
 	p.providePrebuiltInfo(ctx)
 
@@ -850,26 +711,11 @@
 	extractedApex android.WritablePath
 }
 
-func privateApexExtractorModuleFactory() android.Module {
-	module := &prebuiltApexExtractorModule{}
-	module.AddProperties(
-		&module.properties,
-	)
-	android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
-	return module
-}
-
-func (p *prebuiltApexExtractorModule) Srcs() android.Paths {
-	return android.Paths{p.extractedApex}
-}
-
-func (p *prebuiltApexExtractorModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-	srcsSupplier := func(ctx android.BaseModuleContext, prebuilt android.Module) []string {
-		return p.properties.prebuiltSrcs(ctx)
-	}
+// extract registers the build actions to extract an apex from .apks file
+// returns the path of the extracted apex
+func extract(ctx android.ModuleContext, apexSet android.Path, prerelease *bool) android.Path {
 	defaultAllowPrerelease := ctx.Config().IsEnvTrue("SOONG_ALLOW_PRERELEASE_APEXES")
-	apexSet := android.SingleSourcePathFromSupplier(ctx, srcsSupplier, "set")
-	p.extractedApex = android.PathForModuleOut(ctx, "extracted", apexSet.Base())
+	extractedApex := android.PathForModuleOut(ctx, "extracted", apexSet.Base())
 	// Filter out NativeBridge archs (b/260115309)
 	abis := java.SupportedAbis(ctx, true)
 	ctx.Build(pctx,
@@ -877,14 +723,16 @@
 			Rule:        extractMatchingApex,
 			Description: "Extract an apex from an apex set",
 			Inputs:      android.Paths{apexSet},
-			Output:      p.extractedApex,
+			Output:      extractedApex,
 			Args: map[string]string{
 				"abis":              strings.Join(abis, ","),
-				"allow-prereleased": strconv.FormatBool(proptools.BoolDefault(p.properties.Prerelease, defaultAllowPrerelease)),
+				"allow-prereleased": strconv.FormatBool(proptools.BoolDefault(prerelease, defaultAllowPrerelease)),
 				"sdk-version":       ctx.Config().PlatformSdkVersion().String(),
 				"skip-sdk-check":    strconv.FormatBool(ctx.Config().IsEnvTrue("SOONG_SKIP_APPSET_SDK_CHECK")),
 			},
-		})
+		},
+	)
+	return extractedApex
 }
 
 type ApexSet struct {
@@ -953,48 +801,18 @@
 func apexSetFactory() android.Module {
 	module := &ApexSet{}
 	module.AddProperties(&module.properties)
-	module.initPrebuiltCommon(module, &module.properties.PrebuiltCommonProperties)
+	module.prebuiltCommon.prebuiltCommonProperties = &module.properties.PrebuiltCommonProperties
+
+	// init the module as a prebuilt
+	// even though this module type has srcs, use `InitPrebuiltModuleWithoutSrcs`, since the existing
+	// InitPrebuiltModule* are not friendly with Sources of Configurable type.
+	// The actual src will be evaluated in GenerateAndroidBuildActions.
+	android.InitPrebuiltModuleWithoutSrcs(module)
+	android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
 
 	return module
 }
 
-func createApexExtractorModule(ctx android.BottomUpMutatorContext, name string, apexExtractorProperties *ApexExtractorProperties) {
-	props := struct {
-		Name *string
-	}{
-		Name: proptools.StringPtr(name),
-	}
-
-	ctx.CreateModule(privateApexExtractorModuleFactory,
-		&props,
-		apexExtractorProperties,
-	)
-}
-
-func apexExtractorModuleName(baseModuleName string) string {
-	return baseModuleName + ".apex.extractor"
-}
-
-var _ prebuiltApexModuleCreator = (*ApexSet)(nil)
-
-// createPrebuiltApexModules creates modules necessary to export files from the apex set to other
-// modules.
-//
-// This effectively does for apex_set what Prebuilt.createPrebuiltApexModules does for a
-// prebuilt_apex except that instead of creating a selector module which selects one .apex file
-// from those provided this creates an extractor module which extracts the appropriate .apex file
-// from the zip file containing them.
-func (a *ApexSet) createPrebuiltApexModules(ctx android.BottomUpMutatorContext) {
-	apexExtractorModuleName := apexExtractorModuleName(a.Name())
-	createApexExtractorModule(ctx, apexExtractorModuleName, &a.properties.ApexExtractorProperties)
-
-	apexFileSource := ":" + apexExtractorModuleName
-	a.createDeapexerModuleIfNeeded(ctx, deapexerModuleName(a.Name()), apexFileSource)
-
-	// After passing the arch specific src properties to the creating the apex selector module
-	a.prebuiltCommonProperties.Selected_apex = proptools.StringPtr(apexFileSource)
-}
-
 func (a *ApexSet) ComponentDepsMutator(ctx android.BottomUpMutatorContext) {
 	a.prebuiltApexContentsDeps(ctx)
 }
@@ -1017,7 +835,15 @@
 		ctx.ModuleErrorf("filename should end in %s or %s for apex_set", imageApexSuffix, imageCapexSuffix)
 	}
 
-	inputApex := android.OptionalPathForModuleSrc(ctx, a.prebuiltCommonProperties.Selected_apex).Path()
+	var apexSet android.Path
+	if srcs := a.properties.prebuiltSrcs(ctx); len(srcs) == 1 {
+		apexSet = android.PathForModuleSrc(ctx, srcs[0])
+	} else {
+		ctx.ModuleErrorf("Expected exactly one source apex_set file, found %v\n", srcs)
+	}
+
+	extractedApex := extract(ctx, apexSet, a.properties.Prerelease)
+
 	a.outputApex = android.PathForModuleOut(ctx, a.installFilename)
 
 	// Build the output APEX. If compression is not enabled, make sure the output is not compressed even if the input is compressed
@@ -1027,7 +853,7 @@
 	}
 	ctx.Build(pctx, android.BuildParams{
 		Rule:   buildRule,
-		Input:  inputApex,
+		Input:  extractedApex,
 		Output: a.outputApex,
 	})
 
@@ -1036,11 +862,13 @@
 		return
 	}
 
+	deapexerInfo := a.getDeapexerInfo(ctx, extractedApex)
+
 	// dexpreopt any system server jars if present
-	a.dexpreoptSystemServerJars(ctx)
+	a.dexpreoptSystemServerJars(ctx, deapexerInfo)
 
 	// provide info used for generating the boot image
-	a.provideApexExportsInfo(ctx)
+	a.provideApexExportsInfo(ctx, deapexerInfo)
 
 	a.providePrebuiltInfo(ctx)
 
diff --git a/apex/systemserver_classpath_fragment_test.go b/apex/systemserver_classpath_fragment_test.go
index fd9020b..acb3649 100644
--- a/apex/systemserver_classpath_fragment_test.go
+++ b/apex/systemserver_classpath_fragment_test.go
@@ -277,8 +277,6 @@
 	java.CheckModuleDependencies(t, ctx, "myapex", "android_common_myapex", []string{
 		`all_apex_contributions`,
 		`dex2oatd`,
-		`prebuilt_myapex.apex.selector`,
-		`prebuilt_myapex.deapexer`,
 		`prebuilt_mysystemserverclasspathfragment`,
 	})
 
@@ -286,10 +284,9 @@
 		`all_apex_contributions`,
 		`prebuilt_bar`,
 		`prebuilt_foo`,
-		`prebuilt_myapex.deapexer`,
 	})
 
-	ensureExactDeapexedContents(t, ctx, "prebuilt_myapex", "android_common", []string{
+	ensureExactDeapexedContents(t, ctx, "myapex", "android_common_myapex", []string{
 		"javalib/foo.jar",
 		"javalib/bar.jar",
 		"javalib/bar.jar.prof",
@@ -439,10 +436,9 @@
 		`all_apex_contributions`,
 		`prebuilt_bar`,
 		`prebuilt_foo`,
-		`prebuilt_myapex.deapexer`,
 	})
 
-	ensureExactDeapexedContents(t, ctx, "prebuilt_myapex", "android_common", []string{
+	ensureExactDeapexedContents(t, ctx, "myapex", "android_common_myapex", []string{
 		"javalib/foo.jar",
 		"javalib/bar.jar",
 		"javalib/bar.jar.prof",
diff --git a/bpf/bpf.go b/bpf/bpf.go
index 73c8800..8679821 100644
--- a/bpf/bpf.go
+++ b/bpf/bpf.go
@@ -56,6 +56,7 @@
 )
 
 func registerBpfBuildComponents(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("bpf_defaults", defaultsFactory)
 	ctx.RegisterModuleType("bpf", BpfFactory)
 }
 
@@ -77,10 +78,16 @@
 	// the C/C++ module.
 	Cflags []string
 
-	// directories (relative to the root of the source tree) that will
-	// be added to the include paths using -I.
+	// list of directories relative to the root of the source tree that
+	// will be added to the include paths using -I.
+	// If possible, don't use this. If adding paths from the current
+	// directory, use local_include_dirs. If adding paths from other
+	// modules, use export_include_dirs in that module.
 	Include_dirs []string
 
+	// list of directories relative to the Blueprint file that will be
+	// added to the include path using -I.
+	Local_include_dirs []string
 	// optional subdirectory under which this module is installed into.
 	Sub_dir string
 
@@ -94,7 +101,7 @@
 
 type bpf struct {
 	android.ModuleBase
-
+	android.DefaultableModuleBase
 	properties BpfProperties
 
 	objs android.Paths
@@ -163,6 +170,10 @@
 		"-I " + ctx.ModuleDir(),
 	}
 
+	for _, dir := range android.PathsForModuleSrc(ctx, bpf.properties.Local_include_dirs) {
+		cflags = append(cflags, "-I "+dir.String())
+	}
+
 	for _, dir := range android.PathsForSource(ctx, bpf.properties.Include_dirs) {
 		cflags = append(cflags, "-I "+dir.String())
 	}
@@ -264,6 +275,26 @@
 	}
 }
 
+type Defaults struct {
+	android.ModuleBase
+	android.DefaultsModuleBase
+}
+
+func defaultsFactory() android.Module {
+	return DefaultsFactory()
+}
+
+func DefaultsFactory(props ...interface{}) android.Module {
+	module := &Defaults{}
+
+	module.AddProperties(props...)
+	module.AddProperties(&BpfProperties{})
+
+	android.InitDefaultsModule(module)
+
+	return module
+}
+
 func (bpf *bpf) SubDir() string {
 	return bpf.properties.Sub_dir
 }
@@ -274,5 +305,7 @@
 	module.AddProperties(&module.properties)
 
 	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+	android.InitDefaultableModule(module)
+
 	return module
 }
diff --git a/bpf/libbpf/libbpf_prog.go b/bpf/libbpf/libbpf_prog.go
index 1fdb3d6..ac61510 100644
--- a/bpf/libbpf/libbpf_prog.go
+++ b/bpf/libbpf/libbpf_prog.go
@@ -61,6 +61,7 @@
 )
 
 func registerLibbpfProgBuildComponents(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("libbpf_defaults", defaultsFactory)
 	ctx.RegisterModuleType("libbpf_prog", LibbpfProgFactory)
 }
 
@@ -88,14 +89,17 @@
 	// be added to the include path using -I
 	Local_include_dirs []string `android:"arch_variant"`
 
+	Header_libs []string `android:"arch_variant"`
+
 	// optional subdirectory under which this module is installed into.
 	Relative_install_path string
 }
 
 type libbpfProg struct {
 	android.ModuleBase
+	android.DefaultableModuleBase
 	properties LibbpfProgProperties
-	objs android.Paths
+	objs       android.Paths
 }
 
 var _ android.ImageInterface = (*libbpfProg)(nil)
@@ -139,6 +143,7 @@
 
 func (libbpf *libbpfProg) DepsMutator(ctx android.BottomUpMutatorContext) {
 	ctx.AddDependency(ctx.Module(), libbpfProgDepTag, "libbpf_headers")
+	ctx.AddVariationDependencies(nil, cc.HeaderDepTag(), libbpf.properties.Header_libs...)
 }
 
 func (libbpf *libbpfProg) GenerateAndroidBuildActions(ctx android.ModuleContext) {
@@ -180,6 +185,11 @@
 				depName := ctx.OtherModuleName(dep)
 				ctx.ModuleErrorf("module %q is not a genrule", depName)
 			}
+		} else if depTag == cc.HeaderDepTag() {
+			depExporterInfo, _ := android.OtherModuleProvider(ctx, dep, cc.FlagExporterInfoProvider)
+			for _, dir := range depExporterInfo.IncludeDirs {
+				cflags = append(cflags, "-I "+dir.String())
+			}
 		}
 	})
 
@@ -269,10 +279,32 @@
 	}
 }
 
+type Defaults struct {
+	android.ModuleBase
+	android.DefaultsModuleBase
+}
+
+func defaultsFactory() android.Module {
+	return DefaultsFactory()
+}
+
+func DefaultsFactory(props ...interface{}) android.Module {
+	module := &Defaults{}
+
+	module.AddProperties(props...)
+	module.AddProperties(&LibbpfProgProperties{})
+
+	android.InitDefaultsModule(module)
+
+	return module
+}
+
 func LibbpfProgFactory() android.Module {
 	module := &libbpfProg{}
 
 	module.AddProperties(&module.properties)
 	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
+	android.InitDefaultableModule(module)
+
 	return module
 }
diff --git a/build_kzip.bash b/build_kzip.bash
index 4c42048..850aeda 100755
--- a/build_kzip.bash
+++ b/build_kzip.bash
@@ -40,6 +40,7 @@
   merge_zips
   xref_cxx
   xref_java
+  xref_kotlin
   # TODO: b/286390153 - reenable rust
   # xref_rust
 )
diff --git a/cc/Android.bp b/cc/Android.bp
index 2952614..3688c8a 100644
--- a/cc/Android.bp
+++ b/cc/Android.bp
@@ -116,4 +116,6 @@
         "cmake_module_cc.txt",
     ],
     pluginFor: ["soong_build"],
+    // Used by plugins
+    visibility: ["//visibility:public"],
 }
diff --git a/cc/TEST_MAPPING b/cc/TEST_MAPPING
new file mode 100644
index 0000000..be2809d
--- /dev/null
+++ b/cc/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "imports": [
+    {
+      "path": "bionic"
+    }
+  ]
+}
diff --git a/cc/cc.go b/cc/cc.go
index 96795d3..a8ff474 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -137,7 +137,7 @@
 
 	// LLNDK headers for the ABI checker to check LLNDK implementation library.
 	// An LLNDK implementation is the core variant. LLNDK header libs are reexported by the vendor variant.
-	// The core variant cannot depend on the vendor variant because of the order of CreateVariations.
+	// The core variant cannot depend on the vendor variant because of the order of imageTransitionMutator.Split().
 	// Instead, the LLNDK implementation depends on the LLNDK header libs.
 	LlndkHeaderLibs []string
 }
diff --git a/cc/cc_test.go b/cc/cc_test.go
index 93630db..3f3347b 100644
--- a/cc/cc_test.go
+++ b/cc/cc_test.go
@@ -49,17 +49,30 @@
 
 func registerTestMutators(ctx android.RegistrationContext) {
 	ctx.PostDepsMutators(func(ctx android.RegisterMutatorsContext) {
-		ctx.BottomUp("apex", testApexMutator).Parallel()
+		ctx.Transition("apex", &testApexTransitionMutator{})
 	})
 }
 
-func testApexMutator(mctx android.BottomUpMutatorContext) {
-	modules := mctx.CreateVariations(apexVariationName)
+type testApexTransitionMutator struct{}
+
+func (t *testApexTransitionMutator) Split(ctx android.BaseModuleContext) []string {
+	return []string{apexVariationName}
+}
+
+func (t *testApexTransitionMutator) OutgoingTransition(ctx android.OutgoingTransitionContext, sourceVariation string) string {
+	return sourceVariation
+}
+
+func (t *testApexTransitionMutator) IncomingTransition(ctx android.IncomingTransitionContext, incomingVariation string) string {
+	return incomingVariation
+}
+
+func (t *testApexTransitionMutator) Mutate(ctx android.BottomUpMutatorContext, variation string) {
 	apexInfo := android.ApexInfo{
 		ApexVariationName: apexVariationName,
 		MinSdkVersion:     android.ApiLevelForTest(apexVersion),
 	}
-	mctx.SetVariationProvider(modules[0], android.ApexInfoProvider, apexInfo)
+	android.SetProvider(ctx, android.ApexInfoProvider, apexInfo)
 }
 
 // testCcWithConfig runs tests using the prepareForCcTest
diff --git a/cc/config/Android.bp b/cc/config/Android.bp
index 289409f..f514db6 100644
--- a/cc/config/Android.bp
+++ b/cc/config/Android.bp
@@ -35,4 +35,8 @@
     testSrcs: [
         "tidy_test.go",
     ],
+    visibility: [
+        "//build/soong:__subpackages__",
+        "//prebuilts/clang/host/linux-x86/soong",
+    ],
 }
diff --git a/cc/config/global.go b/cc/config/global.go
index c838357..9d3de6d 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -286,6 +286,8 @@
 		// New warnings to be fixed after clang-r468909
 		"-Wno-error=deprecated-builtins", // http://b/241601211
 		"-Wno-error=deprecated",          // in external/googletest/googletest
+		// Disabling until the warning is fixed in libc++abi header files b/366180429
+		"-Wno-deprecated-dynamic-exception-spec",
 		// New warnings to be fixed after clang-r475365
 		"-Wno-error=enum-constexpr-conversion", // http://b/243964282
 		// New warnings to be fixed after clang-r522817
diff --git a/cc/config/x86_64_device.go b/cc/config/x86_64_device.go
index 5aa2a7e..e7ac038 100644
--- a/cc/config/x86_64_device.go
+++ b/cc/config/x86_64_device.go
@@ -40,6 +40,9 @@
 			"-march=x86-64",
 		},
 
+		"alderlake": []string{
+			"-march=alderlake",
+		},
 		"broadwell": []string{
 			"-march=broadwell",
 		},
diff --git a/cc/config/x86_device.go b/cc/config/x86_device.go
index 4b0041c..a92881d 100644
--- a/cc/config/x86_device.go
+++ b/cc/config/x86_device.go
@@ -42,6 +42,9 @@
 		"x86_64": []string{
 			"-march=prescott",
 		},
+		"alderlake": []string{
+			"-march=alderlake",
+		},
 		"atom": []string{
 			"-march=atom",
 		},
diff --git a/cc/generated_cc_library.go b/cc/generated_cc_library.go
index b1084e4..709586b 100644
--- a/cc/generated_cc_library.go
+++ b/cc/generated_cc_library.go
@@ -18,7 +18,7 @@
 	"android/soong/android"
 )
 
-func GeneratedCcLibraryModuleFactory(moduleName string, callbacks Generator) android.Module {
+func GeneratedCcLibraryModuleFactory(callbacks Generator) android.Module {
 	module, _ := NewLibrary(android.HostAndDeviceSupported)
 
 	// Can be used as both a static and a shared library.
diff --git a/cc/libbuildversion/Android.bp b/cc/libbuildversion/Android.bp
index b105a30..c1f2c10 100644
--- a/cc/libbuildversion/Android.bp
+++ b/cc/libbuildversion/Android.bp
@@ -20,4 +20,5 @@
         "//apex_available:anyapex",
     ],
     vendor_available: true,
+    visibility: ["//visibility:public"],
 }
diff --git a/cc/ndk_abi.go b/cc/ndk_abi.go
index 8202cc0..2706261 100644
--- a/cc/ndk_abi.go
+++ b/cc/ndk_abi.go
@@ -46,7 +46,7 @@
 
 		if m, ok := module.(*Module); ok {
 			if installer, ok := m.installer.(*stubDecorator); ok {
-				if canDumpAbi(ctx.Config(), ctx.ModuleDir(module)) {
+				if installer.hasAbiDump {
 					depPaths = append(depPaths, installer.abiDumpPath)
 				}
 			}
diff --git a/cc/ndk_library.go b/cc/ndk_library.go
index bd6dfa3..01551ab 100644
--- a/cc/ndk_library.go
+++ b/cc/ndk_library.go
@@ -125,6 +125,7 @@
 	parsedCoverageXmlPath android.ModuleOutPath
 	installPath           android.Path
 	abiDumpPath           android.OutputPath
+	hasAbiDump            bool
 	abiDiffPaths          android.Paths
 
 	apiLevel         android.ApiLevel
@@ -330,11 +331,11 @@
 }
 
 // Feature flag.
-func canDumpAbi(config android.Config, moduleDir string) bool {
+func (this *stubDecorator) canDumpAbi(ctx ModuleContext) bool {
 	if runtime.GOOS == "darwin" {
 		return false
 	}
-	if strings.HasPrefix(moduleDir, "bionic/") {
+	if strings.HasPrefix(ctx.ModuleDir(), "bionic/") {
 		// Bionic has enough uncommon implementation details like ifuncs and asm
 		// code that the ABI tracking here has a ton of false positives. That's
 		// causing pretty extreme friction for development there, so disabling
@@ -343,8 +344,14 @@
 		// http://b/358653811
 		return false
 	}
+
+	if this.apiLevel.IsCurrent() {
+		// "current" (AKA 10000) is not tracked.
+		return false
+	}
+
 	// http://b/156513478
-	return config.ReleaseNdkAbiMonitored()
+	return ctx.Config().ReleaseNdkAbiMonitored()
 }
 
 // Feature flag to disable diffing against prebuilts.
@@ -357,6 +364,7 @@
 	this.abiDumpPath = getNdkAbiDumpInstallBase(ctx).Join(ctx,
 		this.apiLevel.String(), ctx.Arch().ArchType.String(),
 		this.libraryName(ctx), "abi.stg")
+	this.hasAbiDump = true
 	headersList := getNdkABIHeadersFile(ctx)
 	ctx.Build(pctx, android.BuildParams{
 		Rule:        stg,
@@ -421,41 +429,45 @@
 	// Also ensure that the ABI of the next API level (if there is one) matches
 	// this API level. *New* ABI is allowed, but any changes to APIs that exist
 	// in this API level are disallowed.
-	if !this.apiLevel.IsCurrent() && prebuiltAbiDump.Valid() {
+	if prebuiltAbiDump.Valid() {
 		nextApiLevel := findNextApiLevel(ctx, this.apiLevel)
 		if nextApiLevel == nil {
 			panic(fmt.Errorf("could not determine which API level follows "+
 				"non-current API level %s", this.apiLevel))
 		}
-		nextAbiDiffPath := android.PathForModuleOut(ctx,
-			"abidiff_next.timestamp")
-		nextAbiDump := this.findPrebuiltAbiDump(ctx, *nextApiLevel)
-		missingNextPrebuiltError := fmt.Sprintf(
-			missingPrebuiltErrorTemplate, this.libraryName(ctx),
-			nextAbiDump.InvalidReason())
-		if !nextAbiDump.Valid() {
-			ctx.Build(pctx, android.BuildParams{
-				Rule:   android.ErrorRule,
-				Output: nextAbiDiffPath,
-				Args: map[string]string{
-					"error": missingNextPrebuiltError,
-				},
-			})
-		} else {
-			ctx.Build(pctx, android.BuildParams{
-				Rule: stgdiff,
-				Description: fmt.Sprintf(
-					"Comparing ABI to the next API level %s %s",
-					prebuiltAbiDump, nextAbiDump),
-				Output: nextAbiDiffPath,
-				Inputs: android.Paths{
-					prebuiltAbiDump.Path(), nextAbiDump.Path()},
-				Args: map[string]string{
-					"args": "--format=small --ignore=interface_addition",
-				},
-			})
+
+		// "current" ABI is not tracked.
+		if !nextApiLevel.IsCurrent() {
+			nextAbiDiffPath := android.PathForModuleOut(ctx,
+				"abidiff_next.timestamp")
+			nextAbiDump := this.findPrebuiltAbiDump(ctx, *nextApiLevel)
+			missingNextPrebuiltError := fmt.Sprintf(
+				missingPrebuiltErrorTemplate, this.libraryName(ctx),
+				nextAbiDump.InvalidReason())
+			if !nextAbiDump.Valid() {
+				ctx.Build(pctx, android.BuildParams{
+					Rule:   android.ErrorRule,
+					Output: nextAbiDiffPath,
+					Args: map[string]string{
+						"error": missingNextPrebuiltError,
+					},
+				})
+			} else {
+				ctx.Build(pctx, android.BuildParams{
+					Rule: stgdiff,
+					Description: fmt.Sprintf(
+						"Comparing ABI to the next API level %s %s",
+						prebuiltAbiDump, nextAbiDump),
+					Output: nextAbiDiffPath,
+					Inputs: android.Paths{
+						prebuiltAbiDump.Path(), nextAbiDump.Path()},
+					Args: map[string]string{
+						"args": "--format=small --ignore=interface_addition",
+					},
+				})
+			}
+			this.abiDiffPaths = append(this.abiDiffPaths, nextAbiDiffPath)
 		}
-		this.abiDiffPaths = append(this.abiDiffPaths, nextAbiDiffPath)
 	}
 }
 
@@ -478,7 +490,7 @@
 	nativeAbiResult := parseNativeAbiDefinition(ctx, symbolFile, c.apiLevel, "")
 	objs := compileStubLibrary(ctx, flags, nativeAbiResult.stubSrc)
 	c.versionScriptPath = nativeAbiResult.versionScript
-	if canDumpAbi(ctx.Config(), ctx.ModuleDir()) {
+	if c.canDumpAbi(ctx) {
 		c.dumpAbi(ctx, nativeAbiResult.symbolList)
 		if canDiffAbi(ctx.Config()) {
 			c.diffAbi(ctx)
diff --git a/cc/sanitize.go b/cc/sanitize.go
index b10a3dd..a8722a0 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -79,7 +79,7 @@
 
 	minimalRuntimeFlags = []string{"-fsanitize-minimal-runtime", "-fno-sanitize-trap=integer,undefined",
 		"-fno-sanitize-recover=integer,undefined"}
-	memtagStackCommonFlags = []string{"-march=armv8-a+memtag"}
+	memtagStackCommonFlags = []string{"-Xclang -target-feature -Xclang +mte"}
 	memtagStackLlvmFlags   = []string{"-dom-tree-reachability-max-bbs-to-explore=128"}
 
 	hostOnlySanitizeFlags   = []string{"-fno-sanitize-recover=all"}
@@ -1437,11 +1437,11 @@
 					//"null",
 					//"shift-base",
 					//"signed-integer-overflow",
-					// TODO(danalbert): Fix UB in libc++'s __tree so we can turn this on.
-					// https://llvm.org/PR19302
-					// http://reviews.llvm.org/D6974
-					// "object-size",
 				)
+
+				if mctx.Config().ReleaseBuildObjectSizeSanitizer() {
+					sanitizers = append(sanitizers, "object-size")
+				}
 			}
 			sanitizers = append(sanitizers, sanProps.Misc_undefined...)
 		}
diff --git a/cmd/extract_apks/bundle_proto/Android.bp b/cmd/extract_apks/bundle_proto/Android.bp
index e56c0fb..0abf1e2 100644
--- a/cmd/extract_apks/bundle_proto/Android.bp
+++ b/cmd/extract_apks/bundle_proto/Android.bp
@@ -10,4 +10,8 @@
     proto: {
         canonical_path_from_root: false,
     },
+    visibility: [
+        "//build/soong:__subpackages__",
+        "//tools/mainline:__subpackages__",
+    ],
 }
diff --git a/cmd/soong_build/main.go b/cmd/soong_build/main.go
index 24a44b4..577c6cc 100644
--- a/cmd/soong_build/main.go
+++ b/cmd/soong_build/main.go
@@ -212,7 +212,14 @@
 }
 
 // Check if there are changes to the environment file, product variable file and
-// soong_build binary, in which case no incremental will be performed.
+// soong_build binary, in which case no incremental will be performed. For env
+// variables we check the used env file, which will be removed in soong ui if
+// there is any changes to the env variables used last time, in which case the
+// check below will fail and a full build will be attempted. If any new env
+// variables are added in the new run, soong ui won't be able to detect it, the
+// used env file check below will pass. But unless there is a soong build code
+// change, in which case the soong build binary check will fail, otherwise the
+// new env variables shouldn't have any affect.
 func incrementalValid(config android.Config, configCacheFile string) (*ConfigCache, bool) {
 	var newConfigCache ConfigCache
 	data, err := os.ReadFile(shared.JoinPath(topDir, usedEnvFile))
diff --git a/cmd/symbols_map/Android.bp b/cmd/symbols_map/Android.bp
index e3ae6ed..272e806 100644
--- a/cmd/symbols_map/Android.bp
+++ b/cmd/symbols_map/Android.bp
@@ -30,4 +30,5 @@
     srcs: [
         "symbols_map_proto/symbols_map.pb.go",
     ],
+    visibility: ["//visibility:public"],
 }
diff --git a/cmd/zip2zip/Android.bp b/cmd/zip2zip/Android.bp
index 3ef7668..7f9b165 100644
--- a/cmd/zip2zip/Android.bp
+++ b/cmd/zip2zip/Android.bp
@@ -27,4 +27,6 @@
         "zip2zip.go",
     ],
     testSrcs: ["zip2zip_test.go"],
+    // Used by genrules
+    visibility: ["//visibility:public"],
 }
diff --git a/compliance/Android.bp b/compliance/Android.bp
new file mode 100644
index 0000000..08736b4
--- /dev/null
+++ b/compliance/Android.bp
@@ -0,0 +1,39 @@
+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+bootstrap_go_package {
+    name: "soong-compliance",
+    pkgPath: "android/soong/compliance",
+    deps: [
+        "soong-android",
+    ],
+    srcs: [
+        "notice.go",
+    ],
+    testSrcs: [
+    ],
+    pluginFor: ["soong_build"],
+}
+
+notice_xml {
+    name: "notice_xml_system",
+    partition_name: "system",
+    visibility: [
+        "//device/google/cuttlefish/system_image",
+    ],
+}
diff --git a/compliance/license_metadata_proto/Android.bp b/compliance/license_metadata_proto/Android.bp
index 3c041e4..4761285 100644
--- a/compliance/license_metadata_proto/Android.bp
+++ b/compliance/license_metadata_proto/Android.bp
@@ -24,4 +24,8 @@
         "golang-protobuf-reflect-protoreflect",
         "golang-protobuf-runtime-protoimpl",
     ],
+    visibility: [
+        "//build/make/tools/compliance:__subpackages__",
+        "//build/soong:__subpackages__",
+    ],
 }
diff --git a/compliance/notice.go b/compliance/notice.go
new file mode 100644
index 0000000..4fc83ab
--- /dev/null
+++ b/compliance/notice.go
@@ -0,0 +1,100 @@
+// Copyright 2024 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package compliance
+
+import (
+	"path/filepath"
+
+	"android/soong/android"
+	"github.com/google/blueprint"
+)
+
+func init() {
+	RegisterNoticeXmlBuildComponents(android.InitRegistrationContext)
+}
+
+var PrepareForTestWithNoticeXmlBuildComponents = android.GroupFixturePreparers(
+	android.FixtureRegisterWithContext(RegisterNoticeXmlBuildComponents),
+)
+
+var PrepareForTestWithNoticeXml = android.GroupFixturePreparers(
+	PrepareForTestWithNoticeXmlBuildComponents,
+)
+
+func RegisterNoticeXmlBuildComponents(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("notice_xml", NoticeXmlFactory)
+}
+
+var (
+	pctx = android.NewPackageContext("android/soong/compliance")
+
+	genNoticeXml = pctx.HostBinToolVariable("genNoticeXml", "gen_notice_xml")
+
+	// Command to generate NOTICE.xml.gz for a partition
+	genNoticeXmlRule = pctx.AndroidStaticRule("genNoticeXmlRule", blueprint.RuleParams{
+		Command: "rm -rf $out && " +
+			"${genNoticeXml} --output_file ${out} --metadata ${in} --partition ${partition} --product_out ${productOut} --soong_out ${soongOut}",
+		CommandDeps: []string{"${genNoticeXml}"},
+	}, "partition", "productOut", "soongOut")
+)
+
+func NoticeXmlFactory() android.Module {
+	m := &NoticeXmlModule{}
+	m.AddProperties(&m.props)
+	android.InitAndroidArchModule(m, android.DeviceSupported, android.MultilibFirst)
+	return m
+}
+
+type NoticeXmlModule struct {
+	android.ModuleBase
+
+	props noticeXmlProperties
+
+	outputFile  android.OutputPath
+	installPath android.InstallPath
+}
+
+type noticeXmlProperties struct {
+	Partition_name string
+}
+
+func (nx *NoticeXmlModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	output := android.PathForModuleOut(ctx, "NOTICE.xml.gz")
+	metadataDb := android.PathForOutput(ctx, "compliance-metadata", ctx.Config().DeviceProduct(), "compliance-metadata.db")
+	ctx.Build(pctx, android.BuildParams{
+		Rule:   genNoticeXmlRule,
+		Input:  metadataDb,
+		Output: output,
+		Args: map[string]string{
+			"productOut": filepath.Join(ctx.Config().OutDir(), "target", "product", ctx.Config().DeviceName()),
+			"soongOut":   ctx.Config().SoongOutDir(),
+			"partition":  nx.props.Partition_name,
+		},
+	})
+
+	nx.outputFile = output.OutputPath
+
+	if android.Bool(ctx.Config().ProductVariables().UseSoongSystemImage) {
+		nx.installPath = android.PathForModuleInPartitionInstall(ctx, nx.props.Partition_name, "etc")
+		ctx.InstallFile(nx.installPath, "NOTICE.xml.gz", nx.outputFile)
+	}
+}
+
+func (nx *NoticeXmlModule) AndroidMkEntries() []android.AndroidMkEntries {
+	return []android.AndroidMkEntries{{
+		Class:      "ETC",
+		OutputFile: android.OptionalPathForPath(nx.outputFile),
+	}}
+}
diff --git a/compliance/notice_test.go b/compliance/notice_test.go
new file mode 100644
index 0000000..6187e53
--- /dev/null
+++ b/compliance/notice_test.go
@@ -0,0 +1,38 @@
+// Copyright 2024 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package compliance
+
+import (
+	"testing"
+
+	"android/soong/android"
+)
+
+var prepareForNoticeXmlTest = android.GroupFixturePreparers(
+	android.PrepareForTestWithArchMutator,
+	PrepareForTestWithNoticeXml,
+)
+
+func TestPrebuiltEtcOutputFile(t *testing.T) {
+	result := prepareForNoticeXmlTest.RunTestWithBp(t, `
+		notice_xml {
+			name: "notice_xml_system",
+			partition_name: "system",
+		}
+	`)
+
+	m := result.Module("notice_xml_system", "android_arm64_armv8-a").(*NoticeXmlModule)
+	android.AssertStringEquals(t, "output file", "NOTICE.xml.gz", m.outputFile.Base())
+}
\ No newline at end of file
diff --git a/compliance/project_metadata_proto/Android.bp b/compliance/project_metadata_proto/Android.bp
index 56e76e7..0c807b2 100644
--- a/compliance/project_metadata_proto/Android.bp
+++ b/compliance/project_metadata_proto/Android.bp
@@ -24,4 +24,5 @@
         "golang-protobuf-reflect-protoreflect",
         "golang-protobuf-runtime-protoimpl",
     ],
+    visibility: ["//build/make/tools/compliance:__subpackages__"],
 }
diff --git a/docs/tidy.md b/docs/tidy.md
index ae0ca93..2e4c957 100644
--- a/docs/tidy.md
+++ b/docs/tidy.md
@@ -38,7 +38,7 @@
 clang-tidy is enabled explicitly and with a different check list:
 ```
 cc_defaults {
-    name: "bpf_defaults",
+    name: "bpf_cc_defaults",
     // snipped
     tidy: true,
     tidy_checks: [
@@ -52,7 +52,7 @@
 }
 ```
 That means in normal builds, even without `WITH_TIDY=1`,
-the modules that use `bpf_defaults` _should_ run clang-tidy
+the modules that use `bpf_cc_defaults` _should_ run clang-tidy
 over C/C++ source files with the given `tidy_checks`.
 
 However since clang-tidy warnings and its runtime cost might
diff --git a/etc/Android.bp b/etc/Android.bp
index f02c12a..580c54f 100644
--- a/etc/Android.bp
+++ b/etc/Android.bp
@@ -20,4 +20,6 @@
         "install_symlink_test.go",
     ],
     pluginFor: ["soong_build"],
+    // Used by plugins
+    visibility: ["//visibility:public"],
 }
diff --git a/filesystem/filesystem.go b/filesystem/filesystem.go
index 0b39062..0353992 100644
--- a/filesystem/filesystem.go
+++ b/filesystem/filesystem.go
@@ -147,14 +147,14 @@
 func filesystemFactory() android.Module {
 	module := &filesystem{}
 	module.filterPackagingSpec = module.filterInstallablePackagingSpec
-	initFilesystemModule(module)
+	initFilesystemModule(module, module)
 	return module
 }
 
-func initFilesystemModule(module *filesystem) {
-	module.AddProperties(&module.properties)
-	android.InitPackageModule(module)
-	module.PackagingBase.DepsCollectFirstTargetOnly = true
+func initFilesystemModule(module android.DefaultableModule, filesystemModule *filesystem) {
+	module.AddProperties(&filesystemModule.properties)
+	android.InitPackageModule(filesystemModule)
+	filesystemModule.PackagingBase.DepsCollectFirstTargetOnly = true
 	android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
 	android.InitDefaultableModule(module)
 }
diff --git a/filesystem/system_image.go b/filesystem/system_image.go
index a8fd368..63cb627 100644
--- a/filesystem/system_image.go
+++ b/filesystem/system_image.go
@@ -27,7 +27,7 @@
 
 type systemImageProperties struct {
 	// Path to the input linker config json file.
-	Linker_config_src *string
+	Linker_config_src *string `android:"path"`
 }
 
 // android_system_image is a specialization of android_filesystem for the 'system' partition.
@@ -38,7 +38,7 @@
 	module.AddProperties(&module.properties)
 	module.filesystem.buildExtraFiles = module.buildExtraFiles
 	module.filesystem.filterPackagingSpec = module.filterPackagingSpec
-	initFilesystemModule(&module.filesystem)
+	initFilesystemModule(module, &module.filesystem)
 	return module
 }
 
diff --git a/genrule/Android.bp b/genrule/Android.bp
index 7331741..f4197e6 100644
--- a/genrule/Android.bp
+++ b/genrule/Android.bp
@@ -22,4 +22,6 @@
         "genrule_test.go",
     ],
     pluginFor: ["soong_build"],
+    // Used by plugins
+    visibility: ["//visibility:public"],
 }
diff --git a/golang/golang.go b/golang/golang.go
index ede2150..618a085 100644
--- a/golang/golang.go
+++ b/golang/golang.go
@@ -96,17 +96,31 @@
 	outputFile := android.PathForArbitraryOutput(ctx, android.Rel(ctx, ctx.Config().OutDir(), g.IntermediateFile())).WithoutRel()
 	g.outputFile = outputFile
 
-	installPath := ctx.InstallFile(android.PathForModuleInstall(ctx, "bin"), ctx.ModuleName(), outputFile)
+	// Don't create install rules for modules used by bootstrap, the install command line will differ from
+	// what was used during bootstrap, which will cause ninja to rebuild the module on the next run,
+	// triggering reanalysis.
+	if !usedByBootstrap(ctx.ModuleName()) {
+		installPath := ctx.InstallFile(android.PathForModuleInstall(ctx, "bin"), ctx.ModuleName(), outputFile)
 
-	if !ctx.Config().KatiEnabled() || g.ExportedToMake() {
 		// Modules in an unexported namespace have no install rule, only add modules in the exported namespaces
 		// to the blueprint_tools phony rules.
-		ctx.Phony("blueprint_tools", installPath)
+		if !ctx.Config().KatiEnabled() || g.ExportedToMake() {
+			ctx.Phony("blueprint_tools", installPath)
+		}
 	}
 
 	ctx.SetOutputFiles(android.Paths{outputFile}, "")
 }
 
+func usedByBootstrap(name string) bool {
+	switch name {
+	case "loadplugins", "soong_build":
+		return true
+	default:
+		return false
+	}
+}
+
 func (g *GoBinary) HostToolPath() android.OptionalPath {
 	return android.OptionalPathForPath(g.outputFile)
 }
diff --git a/java/Android.bp b/java/Android.bp
index 9603815..1101d7a 100644
--- a/java/Android.bp
+++ b/java/Android.bp
@@ -72,7 +72,7 @@
         "rro.go",
         "sdk.go",
         "sdk_library.go",
-        "sdk_library_external.go",
+        "sdk_library_internal.go",
         "support_libraries.go",
         "system_modules.go",
         "systemserver_classpath_fragment.go",
@@ -120,4 +120,5 @@
         "test_spec_test.go",
     ],
     pluginFor: ["soong_build"],
+    visibility: ["//visibility:public"],
 }
diff --git a/java/androidmk.go b/java/androidmk.go
index a1bc904..0539d25 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -415,7 +415,7 @@
 				} else {
 					var names []string
 					for _, jniLib := range app.jniLibs {
-						names = append(names, jniLib.name)
+						names = append(names, jniLib.name+":"+jniLib.target.Arch.ArchType.Bitness())
 					}
 					entries.AddStrings("LOCAL_REQUIRED_MODULES", names...)
 				}
diff --git a/java/androidmk_test.go b/java/androidmk_test.go
index 243a279..1d98b18 100644
--- a/java/androidmk_test.go
+++ b/java/androidmk_test.go
@@ -286,7 +286,7 @@
 	}{
 		{
 			name:     "app",
-			expected: []string{"libjni"},
+			expected: []string{"libjni:64"},
 		},
 		{
 			name:     "app_embedded",
diff --git a/java/app_test.go b/java/app_test.go
index ec97a55..d7f5f0c 100644
--- a/java/app_test.go
+++ b/java/app_test.go
@@ -3241,7 +3241,7 @@
 		java_library {
 			name: "static-runtime-helper",
 			srcs: ["a.java"],
-			libs: ["runtime-library"],
+			libs: ["runtime-library.impl"],
 			sdk_version: "current",
 		}
 
@@ -3305,7 +3305,7 @@
 			name: "app",
 			srcs: ["a.java"],
 			libs: [
-				"qux",
+				"qux.impl",
 				"quuz.stubs"
 			],
 			static_libs: [
diff --git a/java/base.go b/java/base.go
index fc8cf95..129d722 100644
--- a/java/base.go
+++ b/java/base.go
@@ -535,7 +535,8 @@
 	linter
 
 	// list of the xref extraction files
-	kytheFiles android.Paths
+	kytheFiles       android.Paths
+	kytheKotlinFiles android.Paths
 
 	hideApexVariantFromMake bool
 
@@ -850,33 +851,6 @@
 	// Add dependency on libraries that provide additional hidden api annotations.
 	ctx.AddVariationDependencies(nil, hiddenApiAnnotationsTag, j.properties.Hiddenapi_additional_annotations...)
 
-	if ctx.Config().EnforceInterPartitionJavaSdkLibrary() {
-		// Require java_sdk_library at inter-partition java dependency to ensure stable
-		// interface between partitions. If inter-partition java_library dependency is detected,
-		// raise build error because java_library doesn't have a stable interface.
-		//
-		// Inputs:
-		//    PRODUCT_ENFORCE_INTER_PARTITION_JAVA_SDK_LIBRARY
-		//      if true, enable enforcement
-		//    PRODUCT_INTER_PARTITION_JAVA_LIBRARY_ALLOWLIST
-		//      exception list of java_library names to allow inter-partition dependency
-		for idx := range j.properties.Libs {
-			if libDeps[idx] == nil {
-				continue
-			}
-
-			if javaDep, ok := libDeps[idx].(javaSdkLibraryEnforceContext); ok {
-				// java_sdk_library is always allowed at inter-partition dependency.
-				// So, skip check.
-				if _, ok := javaDep.(*SdkLibrary); ok {
-					continue
-				}
-
-				j.checkPartitionsForJavaDependency(ctx, "libs", javaDep)
-			}
-		}
-	}
-
 	// For library dependencies that are component libraries (like stubs), add the implementation
 	// as a dependency (dexpreopt needs to be against the implementation library, not stubs).
 	for _, dep := range libDeps {
@@ -1367,7 +1341,7 @@
 
 		kotlinJar := android.PathForModuleOut(ctx, "kotlin", jarName)
 		kotlinHeaderJar := android.PathForModuleOut(ctx, "kotlin_headers", jarName)
-		kotlinCompile(ctx, kotlinJar, kotlinHeaderJar, uniqueSrcFiles, kotlinCommonSrcFiles, srcJars, flags)
+		j.kotlinCompile(ctx, kotlinJar, kotlinHeaderJar, uniqueSrcFiles, kotlinCommonSrcFiles, srcJars, flags)
 		if ctx.Failed() {
 			return
 		}
@@ -1790,14 +1764,14 @@
 				classesJar:    outputFile,
 				jarName:       jarName,
 			}
-			if j.GetProfileGuided() && j.optimizeOrObfuscateEnabled() && !j.EnableProfileRewriting() {
+			if j.GetProfileGuided(ctx) && j.optimizeOrObfuscateEnabled() && !j.EnableProfileRewriting(ctx) {
 				ctx.PropertyErrorf("enable_profile_rewriting",
 					"Enable_profile_rewriting must be true when profile_guided dexpreopt and R8 optimization/obfuscation is turned on. The attached profile should be sourced from an unoptimized/unobfuscated APK.",
 				)
 			}
-			if j.EnableProfileRewriting() {
-				profile := j.GetProfile()
-				if profile == "" || !j.GetProfileGuided() {
+			if j.EnableProfileRewriting(ctx) {
+				profile := j.GetProfile(ctx)
+				if profile == "" || !j.GetProfileGuided(ctx) {
 					ctx.PropertyErrorf("enable_profile_rewriting", "Profile and Profile_guided must be set when enable_profile_rewriting is true")
 				}
 				params.artProfileInput = &profile
@@ -2414,18 +2388,13 @@
 			return
 		}
 
-		if dep, ok := module.(SdkLibraryDependency); ok {
+		if _, ok := module.(SdkLibraryDependency); ok {
 			switch tag {
-			case sdkLibTag, libTag:
-				depHeaderJars := dep.SdkHeaderJars(ctx, j.SdkVersion(ctx))
-				deps.classpath = append(deps.classpath, depHeaderJars...)
-				deps.dexClasspath = append(deps.dexClasspath, depHeaderJars...)
-
-				// TODO: SDK libraries should export a provider with TransitiveClasspathHeaderJars
-				depHeaderJarsSet := android.NewDepSet(android.PREORDER, depHeaderJars, nil)
-				transitiveClasspathHeaderJars = append(transitiveClasspathHeaderJars, depHeaderJarsSet)
-			case staticLibTag:
-				ctx.ModuleErrorf("dependency on java_sdk_library %q can only be in libs", otherName)
+			case sdkLibTag, libTag, staticLibTag:
+				sdkInfo, _ := android.OtherModuleProvider(ctx, module, SdkLibraryInfoProvider)
+				generatingLibsString := android.PrettyConcat(
+					getGeneratingLibs(ctx, j.SdkVersion(ctx), module.Name(), sdkInfo), true, "or")
+				ctx.ModuleErrorf("cannot depend directly on java_sdk_library %q; try depending on %s instead", module.Name(), generatingLibsString)
 			}
 		} else if dep, ok := android.OtherModuleProvider(ctx, module, JavaInfoProvider); ok {
 			if sdkLinkType != javaPlatform {
diff --git a/java/bootclasspath_fragment.go b/java/bootclasspath_fragment.go
index fe4cc76..4fcd40b 100644
--- a/java/bootclasspath_fragment.go
+++ b/java/bootclasspath_fragment.go
@@ -414,6 +414,12 @@
 		// Cross-cutting metadata dependencies are metadata.
 		return false
 	}
+	// Dependency to the bootclasspath fragment of another apex
+	// e.g. concsrypt-bootclasspath-fragment --> art-bootclasspath-fragment
+	if tag == bootclasspathFragmentDepTag {
+		return false
+
+	}
 	panic(fmt.Errorf("boot_image module %q should not have a dependency on %q via tag %s", b, dep, android.PrettyPrintTag(tag)))
 }
 
@@ -1099,22 +1105,10 @@
 	return &output
 }
 
+// DEPRECATED: this information is now generated in the context of the top level prebuilt apex.
 // produceBootImageProfile extracts the boot image profile from the APEX if available.
 func (module *PrebuiltBootclasspathFragmentModule) produceBootImageProfile(ctx android.ModuleContext) android.WritablePath {
-	// This module does not provide a boot image profile.
-	if module.getProfileProviderApex(ctx) == "" {
-		return nil
-	}
-
-	di, err := android.FindDeapexerProviderForModule(ctx)
-	if err != nil {
-		// An error was found, possibly due to multiple apexes in the tree that export this library
-		// Defer the error till a client tries to call getProfilePath
-		module.profilePathErr = err
-		return nil // An error has been reported by FindDeapexerProviderForModule.
-	}
-
-	return di.PrebuiltExportPath(ProfileInstallPathInApex)
+	return android.PathForModuleInstall(ctx, "intentionally_no_longer_supported")
 }
 
 func (b *PrebuiltBootclasspathFragmentModule) getProfilePath() android.Path {
diff --git a/java/config/Android.bp b/java/config/Android.bp
index bfe83ab..6217390 100644
--- a/java/config/Android.bp
+++ b/java/config/Android.bp
@@ -17,4 +17,8 @@
         "kotlin.go",
         "makevars.go",
     ],
+    visibility: [
+        "//build/soong:__subpackages__",
+        "//external/error_prone/soong",
+    ],
 }
diff --git a/java/config/config.go b/java/config/config.go
index c28e070..4c1c723 100644
--- a/java/config/config.go
+++ b/java/config/config.go
@@ -145,6 +145,7 @@
 	pctx.SourcePathVariable("JmodCmd", "${JavaToolchain}/jmod")
 	pctx.SourcePathVariable("JrtFsJar", "${JavaHome}/lib/jrt-fs.jar")
 	pctx.SourcePathVariable("JavaKytheExtractorJar", "prebuilts/build-tools/common/framework/javac_extractor.jar")
+	pctx.SourcePathVariable("KotlinKytheExtractor", "prebuilts/build-tools/${hostPrebuiltTag}/bin/kotlinc_extractor")
 	pctx.SourcePathVariable("Ziptime", "prebuilts/build-tools/${hostPrebuiltTag}/bin/ziptime")
 
 	pctx.SourcePathVariable("ResourceProcessorBusyBox", "prebuilts/bazel/common/android_tools/android_tools/all_android_tools_deploy.jar")
diff --git a/java/config/kotlin.go b/java/config/kotlin.go
index e5e187c..302d021 100644
--- a/java/config/kotlin.go
+++ b/java/config/kotlin.go
@@ -50,4 +50,11 @@
 	}, " "))
 
 	pctx.StaticVariable("KotlincGlobalFlags", strings.Join([]string{}, " "))
+	// Use KotlincKytheGlobalFlags to prevent kotlinc version skew issues between android and
+	// g3 kythe indexers.
+	// This is necessary because there might be instances of kotlin code in android
+	// platform that are not fully compatible with the kotlinc used in g3 kythe indexers.
+	// e.g. uninitialized variables are a warning in 1.*, but an error in 2.*
+	// https://github.com/JetBrains/kotlin/blob/master/compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrors.kt#L748
+	pctx.StaticVariable("KotlincKytheGlobalFlags", strings.Join([]string{"-language-version 1.9"}, " "))
 }
diff --git a/java/dex.go b/java/dex.go
index 7d42efc..faf51a3 100644
--- a/java/dex.go
+++ b/java/dex.go
@@ -120,7 +120,7 @@
 }
 
 func (d *DexProperties) optimizedResourceShrinkingEnabled(ctx android.ModuleContext) bool {
-	return d.resourceShrinkingEnabled(ctx) && Bool(d.Optimize.Optimized_shrink_resources)
+	return d.resourceShrinkingEnabled(ctx) && BoolDefault(d.Optimize.Optimized_shrink_resources, ctx.Config().UseOptimizedResourceShrinkingByDefault())
 }
 
 func (d *dexer) optimizeOrObfuscateEnabled() bool {
@@ -220,14 +220,28 @@
 		deps = append(deps, f)
 	}
 
+	var requestReleaseMode bool
+	requestReleaseMode, flags = android.RemoveFromList("--release", flags)
+
 	if ctx.Config().Getenv("NO_OPTIMIZE_DX") != "" {
 		flags = append(flags, "--debug")
+		requestReleaseMode = false
 	}
 
 	if ctx.Config().Getenv("GENERATE_DEX_DEBUG") != "" {
 		flags = append(flags,
 			"--debug",
 			"--verbose")
+		requestReleaseMode = false
+	}
+
+	// Don't strip out debug information for eng builds, unless the target
+	// explicitly provided the `--release` build flag. This allows certain
+	// test targets to remain optimized as part of eng test_suites builds.
+	if requestReleaseMode {
+		flags = append(flags, "--release")
+	} else if ctx.Config().Eng() {
+		flags = append(flags, "--debug")
 	}
 
 	// Supplying the platform build flag disables various features like API modeling and desugaring.
@@ -245,6 +259,16 @@
 	if err != nil {
 		ctx.PropertyErrorf("min_sdk_version", "%s", err)
 	}
+	if !Bool(d.dexProperties.No_dex_container) && effectiveVersion.FinalOrFutureInt() >= 36 {
+		// W is 36, but we have not bumped the SDK version yet, so check for both.
+		if ctx.Config().PlatformSdkVersion().FinalInt() >= 36 ||
+			ctx.Config().PlatformSdkCodename() == "Wear" {
+			// TODO(b/329465418): Skip this module since it causes issue with app DRM
+			if ctx.ModuleName() != "framework-minus-apex" {
+				flags = append([]string{"-JDcom.android.tools.r8.dexContainerExperiment"}, flags...)
+			}
+		}
+	}
 
 	// If the specified SDK level is 10000, then configure the compiler to use the
 	// current platform SDK level and to compile the build as a platform build.
@@ -374,11 +398,6 @@
 	// TODO(ccross): if this is an instrumentation test of an obfuscated app, use the
 	// dictionary of the app and move the app from libraryjars to injars.
 
-	// Don't strip out debug information for eng builds.
-	if ctx.Config().Eng() {
-		r8Flags = append(r8Flags, "--debug")
-	}
-
 	// TODO(b/180878971): missing classes should be added to the relevant builds.
 	// TODO(b/229727645): do not use true as default for Android platform builds.
 	if proptools.BoolDefault(opt.Ignore_warnings, true) {
@@ -390,7 +409,7 @@
 		r8Flags = append(r8Flags, "--resource-input", d.resourcesInput.Path().String())
 		r8Deps = append(r8Deps, d.resourcesInput.Path())
 		r8Flags = append(r8Flags, "--resource-output", d.resourcesOutput.Path().String())
-		if Bool(opt.Optimized_shrink_resources) {
+		if d.dexProperties.optimizedResourceShrinkingEnabled(ctx) {
 			r8Flags = append(r8Flags, "--optimized-resource-shrinking")
 		}
 	}
diff --git a/java/dex_test.go b/java/dex_test.go
index 4862d06..8bc28e6 100644
--- a/java/dex_test.go
+++ b/java/dex_test.go
@@ -713,3 +713,97 @@
 	}
 }`)
 }
+
+func TestDebugReleaseFlags(t *testing.T) {
+	bp := `
+		android_app {
+			name: "app",
+			srcs: ["foo.java"],
+			platform_apis: true,
+			dxflags: ["%s"]
+		}
+	`
+
+	testcases := []struct {
+		name          string
+		envVar        string
+		isEng         bool
+		dxFlags       string
+		expectedFlags string
+	}{
+		{
+			name:          "app_no_optimize_dx",
+			envVar:        "NO_OPTIMIZE_DX",
+			expectedFlags: "--debug",
+		},
+		{
+			name:    "app_release_no_optimize_dx",
+			envVar:  "NO_OPTIMIZE_DX",
+			dxFlags: "--release",
+			// Global env vars override explicit dxflags.
+			expectedFlags: "--debug",
+		},
+		{
+			name:          "app_generate_dex_debug",
+			envVar:        "GENERATE_DEX_DEBUG",
+			expectedFlags: "--debug",
+		},
+		{
+			name:    "app_release_generate_dex_debug",
+			envVar:  "GENERATE_DEX_DEBUG",
+			dxFlags: "--release",
+			// Global env vars override explicit dxflags.
+			expectedFlags: "--debug",
+		},
+		{
+			name:          "app_eng",
+			isEng:         true,
+			expectedFlags: "--debug",
+		},
+		{
+			name:    "app_release_eng",
+			isEng:   true,
+			dxFlags: "--release",
+			// Eng mode does *not* override explicit dxflags.
+			expectedFlags: "--release",
+		},
+	}
+
+	for _, tc := range testcases {
+		t.Run(tc.name, func(t *testing.T) {
+			fixturePreparer := PrepareForTestWithJavaDefaultModules
+			fixturePreparer = android.GroupFixturePreparers(
+				fixturePreparer,
+				android.FixtureModifyProductVariables(
+					func(variables android.FixtureProductVariables) {
+						variables.Eng = proptools.BoolPtr(tc.isEng)
+					},
+				),
+			)
+			if tc.envVar != "" {
+				fixturePreparer = android.GroupFixturePreparers(
+					fixturePreparer,
+					android.FixtureMergeEnv(map[string]string{
+						tc.envVar: "true",
+					}),
+				)
+			}
+			result := fixturePreparer.RunTestWithBp(t, fmt.Sprintf(bp, tc.dxFlags))
+
+			appR8 := result.ModuleForTests("app", "android_common").Rule("r8")
+			android.AssertStringDoesContain(t, "expected flag in R8 flags",
+				appR8.Args["r8Flags"], tc.expectedFlags)
+
+			var unexpectedFlags string
+			if tc.expectedFlags == "--debug" {
+				unexpectedFlags = "--release"
+			} else if tc.expectedFlags == "--release" {
+				unexpectedFlags = "--debug"
+			}
+			if unexpectedFlags != "" {
+				android.AssertStringDoesNotContain(t, "unexpected flag in R8 flags",
+					appR8.Args["r8Flags"], unexpectedFlags)
+			}
+		})
+	}
+}
diff --git a/java/dexpreopt.go b/java/dexpreopt.go
index 4734357..63a8634 100644
--- a/java/dexpreopt.go
+++ b/java/dexpreopt.go
@@ -147,25 +147,25 @@
 type DexpreoptProperties struct {
 	Dex_preopt struct {
 		// If false, prevent dexpreopting.  Defaults to true.
-		Enabled *bool
+		Enabled proptools.Configurable[bool] `android:"replace_instead_of_append"`
 
 		// If true, generate an app image (.art file) for this module.
-		App_image *bool
+		App_image proptools.Configurable[bool] `android:"replace_instead_of_append"`
 
 		// If true, use a checked-in profile to guide optimization.  Defaults to false unless
 		// a matching profile is set or a profile is found in PRODUCT_DEX_PREOPT_PROFILE_DIR
 		// that matches the name of this module, in which case it is defaulted to true.
-		Profile_guided *bool
+		Profile_guided proptools.Configurable[bool] `android:"replace_instead_of_append"`
 
 		// If set, provides the path to profile relative to the Android.bp file.  If not set,
 		// defaults to searching for a file that matches the name of this module in the default
 		// profile location set by PRODUCT_DEX_PREOPT_PROFILE_DIR, or empty if not found.
-		Profile *string `android:"path"`
+		Profile proptools.Configurable[string] `android:"path,replace_instead_of_append"`
 
 		// If set to true, r8/d8 will use `profile` as input to generate a new profile that matches
 		// the optimized dex.
 		// The new profile will be subsequently used as the profile to dexpreopt the dex file.
-		Enable_profile_rewriting *bool
+		Enable_profile_rewriting proptools.Configurable[bool] `android:"replace_instead_of_append"`
 	}
 
 	Dex_preopt_result struct {
@@ -244,7 +244,7 @@
 		return true
 	}
 
-	if !BoolDefault(d.dexpreoptProperties.Dex_preopt.Enabled, true) {
+	if !d.dexpreoptProperties.Dex_preopt.Enabled.GetOrDefault(ctx, true) {
 		return true
 	}
 
@@ -433,12 +433,12 @@
 
 	if d.inputProfilePathOnHost != nil {
 		profileClassListing = android.OptionalPathForPath(d.inputProfilePathOnHost)
-	} else if BoolDefault(d.dexpreoptProperties.Dex_preopt.Profile_guided, true) && !forPrebuiltApex(ctx) {
+	} else if d.dexpreoptProperties.Dex_preopt.Profile_guided.GetOrDefault(ctx, true) && !forPrebuiltApex(ctx) {
 		// If enable_profile_rewriting is set, use the rewritten profile instead of the checked-in profile
-		if d.EnableProfileRewriting() {
+		if d.EnableProfileRewriting(ctx) {
 			profileClassListing = android.OptionalPathForPath(d.GetRewrittenProfile())
 			profileIsTextListing = true
-		} else if profile := d.GetProfile(); profile != "" {
+		} else if profile := d.GetProfile(ctx); profile != "" {
 			// If dex_preopt.profile_guided is not set, default it based on the existence of the
 			// dexprepot.profile option or the profile class listing.
 			profileClassListing = android.OptionalPathForPath(
@@ -458,6 +458,8 @@
 	// Use the dexJar to create a unique scope for each
 	dexJarStem := strings.TrimSuffix(dexJarFile.Base(), dexJarFile.Ext())
 
+	appImage := d.dexpreoptProperties.Dex_preopt.App_image.Get(ctx)
+
 	// Full dexpreopt config, used to create dexpreopt build rules.
 	dexpreoptConfig := &dexpreopt.ModuleConfig{
 		Name:            libName,
@@ -486,8 +488,8 @@
 		PreoptBootClassPathDexFiles:     dexFiles.Paths(),
 		PreoptBootClassPathDexLocations: dexLocations,
 
-		NoCreateAppImage:    !BoolDefault(d.dexpreoptProperties.Dex_preopt.App_image, true),
-		ForceCreateAppImage: BoolDefault(d.dexpreoptProperties.Dex_preopt.App_image, false),
+		NoCreateAppImage:    !appImage.GetOrDefault(true),
+		ForceCreateAppImage: appImage.GetOrDefault(false),
 
 		PresignedPrebuilt: d.isPresignedPrebuilt,
 	}
@@ -657,16 +659,16 @@
 	d.shouldDisableDexpreopt = true
 }
 
-func (d *dexpreopter) EnableProfileRewriting() bool {
-	return proptools.Bool(d.dexpreoptProperties.Dex_preopt.Enable_profile_rewriting)
+func (d *dexpreopter) EnableProfileRewriting(ctx android.BaseModuleContext) bool {
+	return d.dexpreoptProperties.Dex_preopt.Enable_profile_rewriting.GetOrDefault(ctx, false)
 }
 
-func (d *dexpreopter) GetProfile() string {
-	return proptools.String(d.dexpreoptProperties.Dex_preopt.Profile)
+func (d *dexpreopter) GetProfile(ctx android.BaseModuleContext) string {
+	return d.dexpreoptProperties.Dex_preopt.Profile.GetOrDefault(ctx, "")
 }
 
-func (d *dexpreopter) GetProfileGuided() bool {
-	return proptools.Bool(d.dexpreoptProperties.Dex_preopt.Profile_guided)
+func (d *dexpreopter) GetProfileGuided(ctx android.BaseModuleContext) bool {
+	return d.dexpreoptProperties.Dex_preopt.Profile_guided.GetOrDefault(ctx, false)
 }
 
 func (d *dexpreopter) GetRewrittenProfile() android.Path {
diff --git a/java/dexpreopt_bootjars.go b/java/dexpreopt_bootjars.go
index a2e4734..ad0e0a7 100644
--- a/java/dexpreopt_bootjars.go
+++ b/java/dexpreopt_bootjars.go
@@ -463,6 +463,7 @@
 
 func RegisterDexpreoptBootJarsComponents(ctx android.RegistrationContext) {
 	ctx.RegisterParallelSingletonModuleType("dex_bootjars", dexpreoptBootJarsFactory)
+	ctx.RegisterModuleType("art_boot_images", artBootImagesFactory)
 	ctx.FinalDepsMutators(func(ctx android.RegisterMutatorsContext) {
 		ctx.BottomUp("dex_bootjars_deps", DexpreoptBootJarsMutator).Parallel()
 	})
@@ -601,6 +602,7 @@
 	d.defaultBootImage = defaultBootImageConfig(ctx)
 	d.otherImages = make([]*bootImageConfig, 0, len(imageConfigs)-1)
 	var profileInstalls android.RuleBuilderInstalls
+	var artBootImageHostInstalls android.RuleBuilderInstalls
 	for _, name := range getImageNames() {
 		config := imageConfigs[name]
 		if config != d.defaultBootImage {
@@ -616,6 +618,18 @@
 			d.bootFrameworkProfile = bootProfile
 			profileInstalls = append(profileInstalls, installs...)
 		}
+		// Gather the install files of the host variant of the ART boot image.
+		// These installed files will be used in ART tests.
+		if config.name == "art" {
+			for _, variant := range config.variants {
+				if variant.target.Os != ctx.Config().BuildOS {
+					// not a host variant
+					continue
+				}
+				artBootImageHostInstalls = append(artBootImageHostInstalls, variant.installs...)
+				artBootImageHostInstalls = append(artBootImageHostInstalls, variant.vdexInstalls...)
+			}
+		}
 	}
 	if len(profileInstalls) > 0 {
 		android.SetProvider(ctx, profileInstallInfoProvider, profileInstallInfo{
@@ -626,6 +640,15 @@
 			installFile(ctx, install)
 		}
 	}
+	// Set a provider containing the install files of the host variant of the ART boot image.
+	// The actual install rules will be created by `art_boot_images`
+	android.SetProvider(
+		ctx,
+		artBootImageHostInfoProvider,
+		artBootImageHostInfo{
+			installs: artBootImageHostInstalls,
+		},
+	)
 }
 
 // GenerateSingletonBuildActions generates build rules for the dexpreopt config for Make.
@@ -968,6 +991,14 @@
 	}
 }
 
+var artBootImageHostInfoProvider = blueprint.NewProvider[artBootImageHostInfo]()
+
+// artBootImageHostInfo contains the install locations of the host variant of ART boot image
+// this contains both the primary and secondary arch locations
+type artBootImageHostInfo struct {
+	installs android.RuleBuilderInstalls
+}
+
 // Generate boot image build rules for a specific target.
 func buildBootImageVariant(ctx android.ModuleContext, image *bootImageVariant, profile android.Path) bootImageVariantOutputs {
 
@@ -1396,3 +1427,70 @@
 		OutputFile: android.OptionalPathForPath(d.bootFrameworkProfile),
 	}}
 }
+
+// artBootImages is a thin wrapper around `dex_bootjars`.
+// it creates the installation rules for the host variant of the ART boot image.
+type artBootImages struct {
+	android.ModuleBase
+
+	// A non-empty file that will be written as `LOCAL_SOONG_INSTALLED_MODULE` in out/soong/Android-*.mk
+	outputFile android.OptionalPath
+}
+
+func artBootImagesFactory() android.Module {
+	m := &artBootImages{}
+	android.InitAndroidMultiTargetsArchModule(m, android.HostSupported, android.MultilibCommon)
+	return m
+}
+
+func (dbj *artBootImages) DepsMutator(ctx android.BottomUpMutatorContext) {
+	// Create a dependency on `dex_bootjars` to access the intermediate locations of host art boot image.
+	ctx.AddDependency(ctx.Module(), dexpreoptBootJarDepTag, "dex_bootjars")
+}
+
+func (d *artBootImages) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	ctx.VisitDirectDepsWithTag(dexpreoptBootJarDepTag, func(m android.Module) {
+		hostInstallsInfo, ok := android.OtherModuleProvider(ctx, m, artBootImageHostInfoProvider)
+		if !ok {
+			ctx.ModuleErrorf("Could not find information about the host variant of ART boot image")
+		}
+		installs := d.installFile(ctx, hostInstallsInfo.installs)
+		if len(installs) > 0 {
+			d.outputFile = android.OptionalPathForPath(installs[0])
+			// Create a phony target that can ART run-tests can depend on.
+			ctx.Phony(d.Name(), installs...)
+		} else {
+			// this might be true e.g. when building with `WITH_DEXPREOPT=false`
+			// create an empty file so that the `art_boot_images` is known to the packaging system.
+			d.outputFile = android.OptionalPathForPath(android.PathForModuleOut(ctx, "undefined_art_boot_images"))
+		}
+	})
+}
+
+// Creates an installation rule for host variant of ART boot image files.
+// Returns the list of install locations (out/host/linux-x86/...)
+func (d *artBootImages) installFile(ctx android.ModuleContext, ruleBuilderInstalls android.RuleBuilderInstalls) android.Paths {
+	var ret android.Paths
+	for _, ruleBuilderInstall := range ruleBuilderInstalls {
+		installDir := android.PathForModuleInstall(
+			ctx,
+			strings.TrimPrefix(filepath.Dir(ruleBuilderInstall.To), "/"),
+		)
+		filename := filepath.Base(ruleBuilderInstall.To)
+		ctx.InstallFile(
+			installDir,
+			filename,
+			ruleBuilderInstall.From,
+		)
+		ret = append(ret, installDir.Join(ctx, filename))
+	}
+	return ret
+}
+
+// Set `OutputFile` expclitly so that this module does not get elided when generating out/soong/Android-*.mk
+func (d *artBootImages) AndroidMkEntries() []android.AndroidMkEntries {
+	return []android.AndroidMkEntries{{
+		Class:      "ETC",
+		OutputFile: d.outputFile,
+	}}
+}
diff --git a/java/droiddoc.go b/java/droiddoc.go
index 2929bb8..a7e92d9 100644
--- a/java/droiddoc.go
+++ b/java/droiddoc.go
@@ -373,8 +373,11 @@
 				panic(fmt.Errorf("unknown dependency %q for %q", otherName, ctx.ModuleName()))
 			}
 		case libTag, sdkLibTag:
-			if dep, ok := module.(SdkLibraryDependency); ok {
-				deps.classpath = append(deps.classpath, dep.SdkHeaderJars(ctx, j.SdkVersion(ctx))...)
+			if _, ok := module.(SdkLibraryDependency); ok {
+				sdkInfo, _ := android.OtherModuleProvider(ctx, module, SdkLibraryInfoProvider)
+				generatingLibsString := android.PrettyConcat(
+					getGeneratingLibs(ctx, j.SdkVersion(ctx), module.Name(), sdkInfo), true, "or")
+				ctx.ModuleErrorf("cannot depend directly on java_sdk_library %q; try depending on %s instead", module.Name(), generatingLibsString)
 			} else if dep, ok := android.OtherModuleProvider(ctx, module, JavaInfoProvider); ok {
 				deps.classpath = append(deps.classpath, dep.HeaderJars...)
 				deps.aidlIncludeDirs = append(deps.aidlIncludeDirs, dep.AidlIncludeDirs...)
diff --git a/java/java.go b/java/java.go
index 1fa0830..c6fa663 100644
--- a/java/java.go
+++ b/java/java.go
@@ -356,12 +356,17 @@
 // TODO(jungjw): Move this to kythe.go once it's created.
 type xref interface {
 	XrefJavaFiles() android.Paths
+	XrefKotlinFiles() android.Paths
 }
 
 func (j *Module) XrefJavaFiles() android.Paths {
 	return j.kytheFiles
 }
 
+func (j *Module) XrefKotlinFiles() android.Paths {
+	return j.kytheKotlinFiles
+}
+
 func (d dependencyTag) PropagateAconfigValidation() bool {
 	return d.static
 }
@@ -2691,13 +2696,13 @@
 					transitiveBootClasspathHeaderJars = append(transitiveBootClasspathHeaderJars, dep.TransitiveStaticLibsHeaderJars)
 				}
 			}
-		} else if dep, ok := module.(SdkLibraryDependency); ok {
+		} else if _, ok := module.(SdkLibraryDependency); ok {
 			switch tag {
 			case libTag, sdkLibTag:
-				depHeaderJars := dep.SdkHeaderJars(ctx, j.SdkVersion(ctx))
-				flags.classpath = append(flags.classpath, depHeaderJars...)
-				transitiveClasspathHeaderJars = append(transitiveClasspathHeaderJars,
-					android.NewDepSet(android.PREORDER, depHeaderJars, nil))
+				sdkInfo, _ := android.OtherModuleProvider(ctx, module, SdkLibraryInfoProvider)
+				generatingLibsString := android.PrettyConcat(
+					getGeneratingLibs(ctx, j.SdkVersion(ctx), module.Name(), sdkInfo), true, "or")
+				ctx.ModuleErrorf("cannot depend directly on java_sdk_library %q; try depending on %s instead", module.Name(), generatingLibsString)
 			}
 		}
 
@@ -2809,41 +2814,14 @@
 	}
 
 	if ctx.Device() {
-		// If this is a variant created for a prebuilt_apex then use the dex implementation jar
-		// obtained from the associated deapexer module.
+		// Shared libraries deapexed from prebuilt apexes are no longer supported.
+		// Set the dexJarBuildPath to a fake path.
+		// This allows soong analysis pass, but will be an error during ninja execution if there are
+		// any rdeps.
 		ai, _ := android.ModuleProvider(ctx, android.ApexInfoProvider)
 		if ai.ForPrebuiltApex {
-			// Get the path of the dex implementation jar from the `deapexer` module.
-			di, err := android.FindDeapexerProviderForModule(ctx)
-			if err != nil {
-				// An error was found, possibly due to multiple apexes in the tree that export this library
-				// Defer the error till a client tries to call DexJarBuildPath
-				j.dexJarFileErr = err
-				j.initHiddenAPIError(err)
-				return
-			}
-			dexJarFileApexRootRelative := ApexRootRelativePathToJavaLib(j.BaseModuleName())
-			if dexOutputPath := di.PrebuiltExportPath(dexJarFileApexRootRelative); dexOutputPath != nil {
-				dexJarFile := makeDexJarPathFromPath(dexOutputPath)
-				j.dexJarFile = dexJarFile
-				installPath := android.PathForModuleInPartitionInstall(ctx, "apex", ai.ApexVariationName, ApexRootRelativePathToJavaLib(j.BaseModuleName()))
-				j.dexJarInstallFile = installPath
-
-				j.dexpreopter.installPath = j.dexpreopter.getInstallPath(ctx, android.RemoveOptionalPrebuiltPrefix(ctx.ModuleName()), installPath)
-				setUncompressDex(ctx, &j.dexpreopter, &j.dexer)
-				j.dexpreopter.uncompressedDex = *j.dexProperties.Uncompress_dex
-
-				if profilePath := di.PrebuiltExportPath(dexJarFileApexRootRelative + ".prof"); profilePath != nil {
-					j.dexpreopter.inputProfilePathOnHost = profilePath
-				}
-
-				// Initialize the hiddenapi structure.
-				j.initHiddenAPI(ctx, dexJarFile, outputFile, j.dexProperties.Uncompress_dex)
-			} else {
-				// This should never happen as a variant for a prebuilt_apex is only created if the
-				// prebuilt_apex has been configured to export the java library dex file.
-				ctx.ModuleErrorf("internal error: no dex implementation jar available from prebuilt APEX %s", di.ApexModuleName())
-			}
+			j.dexJarFile = makeDexJarPathFromPath(android.PathForModuleInstall(ctx, "intentionally_no_longer_supported"))
+			j.initHiddenAPI(ctx, j.dexJarFile, outputFile, j.dexProperties.Uncompress_dex)
 		} else if Bool(j.dexProperties.Compile_dex) {
 			sdkDep := decodeSdkDep(ctx, android.SdkContext(j))
 			if sdkDep.invalidVersion {
@@ -3296,15 +3274,20 @@
 
 func (ks *kytheExtractJavaSingleton) GenerateBuildActions(ctx android.SingletonContext) {
 	var xrefTargets android.Paths
+	var xrefKotlinTargets android.Paths
 	ctx.VisitAllModules(func(module android.Module) {
 		if javaModule, ok := module.(xref); ok {
 			xrefTargets = append(xrefTargets, javaModule.XrefJavaFiles()...)
+			xrefKotlinTargets = append(xrefKotlinTargets, javaModule.XrefKotlinFiles()...)
 		}
 	})
 	// TODO(asmundak): perhaps emit a rule to output a warning if there were no xrefTargets
 	if len(xrefTargets) > 0 {
 		ctx.Phony("xref_java", xrefTargets...)
 	}
+	if len(xrefKotlinTargets) > 0 {
+		ctx.Phony("xref_kotlin", xrefKotlinTargets...)
+	}
 }
 
 var Bool = proptools.Bool
@@ -3327,6 +3310,10 @@
 	if lib, ok := depModule.(SdkLibraryDependency); ok && lib.sharedLibrary() {
 		// A shared SDK library. This should be added as a top-level CLC element.
 		sdkLib = &depName
+	} else if lib, ok := depModule.(SdkLibraryComponentDependency); ok && lib.OptionalSdkLibraryImplementation() != nil {
+		if depModule.Name() == proptools.String(lib.OptionalSdkLibraryImplementation())+".impl" {
+			sdkLib = lib.OptionalSdkLibraryImplementation()
+		}
 	} else if ulib, ok := depModule.(ProvidesUsesLib); ok {
 		// A non-SDK library disguised as an SDK library by the means of `provides_uses_lib`
 		// property. This should be handled in the same way as a shared SDK library.
diff --git a/java/java_test.go b/java/java_test.go
index dbbf4a8..641bf40 100644
--- a/java/java_test.go
+++ b/java/java_test.go
@@ -670,7 +670,7 @@
 		java_library {
 			name: "foo",
 			srcs: ["a.java", ":stubs-source"],
-			libs: ["bar", "sdklib"],
+			libs: ["bar", "sdklib.stubs"],
 			static_libs: ["baz"],
 		}
 
diff --git a/java/kotlin.go b/java/kotlin.go
index c28bc3f..f42d163 100644
--- a/java/kotlin.go
+++ b/java/kotlin.go
@@ -64,6 +64,28 @@
 	"kotlincFlags", "classpath", "srcJars", "commonSrcFilesArg", "srcJarDir", "classesDir",
 	"headerClassesDir", "headerJar", "kotlinJvmTarget", "kotlinBuildFile", "emptyDir", "name")
 
+var kotlinKytheExtract = pctx.AndroidStaticRule("kotlinKythe",
+	blueprint.RuleParams{
+		Command: `rm -rf "$srcJarDir" && mkdir -p "$srcJarDir" && ` +
+			`${config.ZipSyncCmd} -d $srcJarDir -l $srcJarDir/list -f "*.java" -f "*.kt" $srcJars && ` +
+			`${config.KotlinKytheExtractor} -corpus ${kytheCorpus} --srcs @$out.rsp --srcs @"$srcJarDir/list" $commonSrcFilesList --cp @$classpath -o $out --kotlin_out $outJar ` +
+			// wrap the additional kotlin args.
+			// Skip Xbuild file, pass the cp explicitly.
+			// Skip header jars, those should not have an effect on kythe results.
+			` --args '${config.KotlincGlobalFlags} ` +
+			` ${config.KotlincSuppressJDK9Warnings} ${config.JavacHeapFlags} ` +
+			` $kotlincFlags -jvm-target $kotlinJvmTarget ` +
+			`${config.KotlincKytheGlobalFlags}'`,
+		CommandDeps: []string{
+			"${config.KotlinKytheExtractor}",
+			"${config.ZipSyncCmd}",
+		},
+		Rspfile:        "$out.rsp",
+		RspfileContent: "$in",
+	},
+	"classpath", "kotlincFlags", "commonSrcFilesList", "kotlinJvmTarget", "outJar", "srcJars", "srcJarDir",
+)
+
 func kotlinCommonSrcsList(ctx android.ModuleContext, commonSrcFiles android.Paths) android.OptionalPath {
 	if len(commonSrcFiles) > 0 {
 		// The list of common_srcs may be too long to put on the command line, but
@@ -81,7 +103,7 @@
 }
 
 // kotlinCompile takes .java and .kt sources and srcJars, and compiles the .kt sources into a classes jar in outputFile.
-func kotlinCompile(ctx android.ModuleContext, outputFile, headerOutputFile android.WritablePath,
+func (j *Module) kotlinCompile(ctx android.ModuleContext, outputFile, headerOutputFile android.WritablePath,
 	srcFiles, commonSrcFiles, srcJars android.Paths,
 	flags javaBuilderFlags) {
 
@@ -127,6 +149,31 @@
 			"name":              kotlinName,
 		},
 	})
+
+	// Emit kythe xref rule
+	if (ctx.Config().EmitXrefRules()) && ctx.Module() == ctx.PrimaryModule() {
+		extractionFile := outputFile.ReplaceExtension(ctx, "kzip")
+		args := map[string]string{
+			"classpath":       classpathRspFile.String(),
+			"kotlincFlags":    flags.kotlincFlags,
+			"kotlinJvmTarget": flags.javaVersion.StringForKotlinc(),
+			"outJar":          outputFile.String(),
+			"srcJars":         strings.Join(srcJars.Strings(), " "),
+			"srcJarDir":       android.PathForModuleOut(ctx, "kotlinc", "srcJars.xref").String(),
+		}
+		if commonSrcsList.Valid() {
+			args["commonSrcFilesList"] = "--common_srcs @" + commonSrcsList.String()
+		}
+		ctx.Build(pctx, android.BuildParams{
+			Rule:        kotlinKytheExtract,
+			Description: "kotlinKythe",
+			Output:      extractionFile,
+			Inputs:      srcFiles,
+			Implicits:   deps,
+			Args:        args,
+		})
+		j.kytheKotlinFiles = append(j.kytheKotlinFiles, extractionFile)
+	}
 }
 
 var kaptStubs = pctx.AndroidRemoteStaticRule("kaptStubs", android.RemoteRuleSupports{Goma: true},
diff --git a/java/metalava/Android.bp b/java/metalava/Android.bp
index ccbd191..6bf1832 100644
--- a/java/metalava/Android.bp
+++ b/java/metalava/Android.bp
@@ -15,4 +15,5 @@
 filegroup {
     name: "metalava-config-files",
     srcs: ["*-config.xml"],
+    visibility: ["//visibility:public"],
 }
diff --git a/java/platform_compat_config.go b/java/platform_compat_config.go
index 67ed84e..5b145c6 100644
--- a/java/platform_compat_config.go
+++ b/java/platform_compat_config.go
@@ -110,6 +110,7 @@
 	p.installConfigFile = android.PathForModuleInstall(ctx, "etc", "compatconfig", p.configFile.Base())
 	rule.Build(configFileName, "Extract compat/compat_config.xml and install it")
 	ctx.InstallFile(p.installDirPath, p.configFile.Base(), p.configFile)
+	ctx.SetOutputFiles(android.Paths{p.configFile}, "")
 }
 
 func (p *platformCompatConfig) AndroidMkEntries() []android.AndroidMkEntries {
diff --git a/java/prebuilt_apis.go b/java/prebuilt_apis.go
index 00613ee..527e479 100644
--- a/java/prebuilt_apis.go
+++ b/java/prebuilt_apis.go
@@ -124,8 +124,8 @@
 	return
 }
 
-func prebuiltApiModuleName(mctx android.LoadHookContext, module, scope, version string) string {
-	return fmt.Sprintf("%s_%s_%s_%s", mctx.ModuleName(), scope, version, module)
+func prebuiltApiModuleName(moduleName, module, scope, version string) string {
+	return fmt.Sprintf("%s_%s_%s_%s", moduleName, scope, version, module)
 }
 func createImport(mctx android.LoadHookContext, module, scope, version, path, sdkVersion string, compileDex bool) {
 	props := struct {
@@ -135,7 +135,7 @@
 		Installable *bool
 		Compile_dex *bool
 	}{
-		Name:        proptools.StringPtr(prebuiltApiModuleName(mctx, module, scope, version)),
+		Name:        proptools.StringPtr(prebuiltApiModuleName(mctx.ModuleName(), module, scope, version)),
 		Jars:        []string{path},
 		Sdk_version: proptools.StringPtr(sdkVersion),
 		Installable: proptools.BoolPtr(false),
@@ -257,8 +257,8 @@
 		Name *string
 		Libs []string
 	}{}
-	props.Name = proptools.StringPtr(prebuiltApiModuleName(mctx, "system_modules", scope, version))
-	props.Libs = append(props.Libs, prebuiltApiModuleName(mctx, "core-for-system-modules", scope, version))
+	props.Name = proptools.StringPtr(prebuiltApiModuleName(mctx.ModuleName(), "system_modules", scope, version))
+	props.Libs = append(props.Libs, prebuiltApiModuleName(mctx.ModuleName(), "core-for-system-modules", scope, version))
 
 	mctx.CreateModule(systemModulesImportFactory, &props)
 }
diff --git a/java/ravenwood.go b/java/ravenwood.go
index bb136cf..9239bbd 100644
--- a/java/ravenwood.go
+++ b/java/ravenwood.go
@@ -33,8 +33,8 @@
 var ravenwoodLibContentTag = dependencyTag{name: "ravenwoodlibcontent"}
 var ravenwoodUtilsTag = dependencyTag{name: "ravenwoodutils"}
 var ravenwoodRuntimeTag = dependencyTag{name: "ravenwoodruntime"}
-var ravenwoodDataTag = dependencyTag{name: "ravenwooddata"}
 var ravenwoodTestResourceApkTag = dependencyTag{name: "ravenwoodtestresapk"}
+var ravenwoodTestInstResourceApkTag = dependencyTag{name: "ravenwoodtest-inst-res-apk"}
 
 const ravenwoodUtilsName = "ravenwood-utils"
 const ravenwoodRuntimeName = "ravenwood-runtime"
@@ -57,11 +57,17 @@
 	Jni_libs []string
 
 	// Specify another android_app module here to copy it to the test directory, so that
-	// the ravenwood test can access it.
+	// the ravenwood test can access it. This APK will be loaded as resources of the test
+	// target app.
 	// TODO: For now, we simply refer to another android_app module and copy it to the
 	// test directory. Eventually, android_ravenwood_test should support all the resource
 	// related properties and build resources from the `res/` directory.
 	Resource_apk *string
+
+	// Specify another android_app module here to copy it to the test directory, so that
+	// the ravenwood test can access it. This APK will be loaded as resources of the test
+	// instrumentation app itself.
+	Inst_resource_apk *string
 }
 
 type ravenwoodTest struct {
@@ -128,6 +134,10 @@
 	if resourceApk := proptools.String(r.ravenwoodTestProperties.Resource_apk); resourceApk != "" {
 		ctx.AddVariationDependencies(nil, ravenwoodTestResourceApkTag, resourceApk)
 	}
+
+	if resourceApk := proptools.String(r.ravenwoodTestProperties.Inst_resource_apk); resourceApk != "" {
+		ctx.AddVariationDependencies(nil, ravenwoodTestInstResourceApkTag, resourceApk)
+	}
 }
 
 func (r *ravenwoodTest) GenerateAndroidBuildActions(ctx android.ModuleContext) {
@@ -195,13 +205,16 @@
 	}
 
 	resApkInstallPath := installPath.Join(ctx, "ravenwood-res-apks")
-	if resApk := ctx.GetDirectDepsWithTag(ravenwoodTestResourceApkTag); len(resApk) > 0 {
-		for _, installFile := range android.OtherModuleProviderOrDefault(
-			ctx, resApk[0], android.InstallFilesProvider).InstallFiles {
-			installResApk := ctx.InstallFile(resApkInstallPath, "ravenwood-res.apk", installFile)
+
+	copyResApk := func(tag blueprint.DependencyTag, toFileName string) {
+		if resApk := ctx.GetDirectDepsWithTag(tag); len(resApk) > 0 {
+			installFile := android.OutputFileForModule(ctx, resApk[0], "")
+			installResApk := ctx.InstallFile(resApkInstallPath, toFileName, installFile)
 			installDeps = append(installDeps, installResApk)
 		}
 	}
+	copyResApk(ravenwoodTestResourceApkTag, "ravenwood-res.apk")
+	copyResApk(ravenwoodTestInstResourceApkTag, "ravenwood-inst-res.apk")
 
 	// Install our JAR with all dependencies
 	ctx.InstallFile(installPath, ctx.ModuleName()+".jar", r.outputFile, installDeps...)
@@ -228,7 +241,10 @@
 	Jni_libs []string
 
 	// We use this to copy framework-res.apk to the ravenwood runtime directory.
-	Data []string
+	Data []string `android:"path,arch_variant"`
+
+	// We use this to copy font files to the ravenwood runtime directory.
+	Fonts []string `android:"path,arch_variant"`
 }
 
 type ravenwoodLibgroup struct {
@@ -267,9 +283,6 @@
 	for _, lib := range r.ravenwoodLibgroupProperties.Jni_libs {
 		ctx.AddVariationDependencies(ctx.Config().BuildOSTarget.Variations(), jniLibTag, lib)
 	}
-	for _, data := range r.ravenwoodLibgroupProperties.Data {
-		ctx.AddVariationDependencies(nil, ravenwoodDataTag, data)
-	}
 }
 
 func (r *ravenwoodLibgroup) GenerateAndroidBuildActions(ctx android.ModuleContext) {
@@ -309,12 +322,17 @@
 	}
 
 	dataInstallPath := installPath.Join(ctx, "ravenwood-data")
-	for _, data := range r.ravenwoodLibgroupProperties.Data {
-		libModule := ctx.GetDirectDepWithTag(data, ravenwoodDataTag)
-		file := android.OutputFileForModule(ctx, libModule, "")
+	data := android.PathsForModuleSrc(ctx, r.ravenwoodLibgroupProperties.Data)
+	for _, file := range data {
 		ctx.InstallFile(dataInstallPath, file.Base(), file)
 	}
 
+	fontsInstallPath := installPath.Join(ctx, "fonts")
+	fonts := android.PathsForModuleSrc(ctx, r.ravenwoodLibgroupProperties.Fonts)
+	for _, file := range fonts {
+		ctx.InstallFile(fontsInstallPath, file.Base(), file)
+	}
+
 	// Normal build should perform install steps
 	ctx.Phony(r.BaseModuleName(), android.PathForPhony(ctx, r.BaseModuleName()+"-install"))
 }
diff --git a/java/ravenwood_test.go b/java/ravenwood_test.go
index d26db93..753a118 100644
--- a/java/ravenwood_test.go
+++ b/java/ravenwood_test.go
@@ -19,6 +19,7 @@
 	"testing"
 
 	"android/soong/android"
+	"android/soong/etc"
 )
 
 var prepareRavenwoodRuntime = android.GroupFixturePreparers(
@@ -59,11 +60,19 @@
 		}
 		android_app {
 			name: "app1",
-            sdk_version: "current",
+			sdk_version: "current",
 		}
 		android_app {
 			name: "app2",
-            sdk_version: "current",
+			sdk_version: "current",
+		}
+		android_app {
+			name: "app3",
+			sdk_version: "current",
+		}
+		prebuilt_font {
+			name: "Font.ttf",
+			src: "Font.ttf",
 		}
 		android_ravenwood_libgroup {
 			name: "ravenwood-runtime",
@@ -76,7 +85,10 @@
 				"ravenwood-runtime-jni2",
 			],
 			data: [
-				"app1",
+				":app1",
+			],
+			fonts: [
+				":Font.ttf"
 			],
 		}
 		android_ravenwood_libgroup {
@@ -97,6 +109,7 @@
 
 	ctx := android.GroupFixturePreparers(
 		PrepareForIntegrationTestWithJava,
+		etc.PrepareForTestWithPrebuiltEtc,
 		prepareRavenwoodRuntime,
 	).RunTest(t)
 
@@ -114,6 +127,7 @@
 	runtime.Output(installPathPrefix + "/ravenwood-runtime/lib64/libred.so")
 	runtime.Output(installPathPrefix + "/ravenwood-runtime/lib64/ravenwood-runtime-jni3.so")
 	runtime.Output(installPathPrefix + "/ravenwood-runtime/ravenwood-data/app1.apk")
+	runtime.Output(installPathPrefix + "/ravenwood-runtime/fonts/Font.ttf")
 	utils := ctx.ModuleForTests("ravenwood-utils", "android_common")
 	utils.Output(installPathPrefix + "/ravenwood-utils/framework-rules.ravenwood.jar")
 }
@@ -125,29 +139,30 @@
 
 	ctx := android.GroupFixturePreparers(
 		PrepareForIntegrationTestWithJava,
+		etc.PrepareForTestWithPrebuiltEtc,
 		prepareRavenwoodRuntime,
 	).RunTestWithBp(t, `
-	cc_library_shared {
-		name: "jni-lib1",
-		host_supported: true,
-		srcs: ["jni.cpp"],
-	}
-	cc_library_shared {
-		name: "jni-lib2",
-		host_supported: true,
-		srcs: ["jni.cpp"],
-		stem: "libblue",
-		shared_libs: [
-			"jni-lib3",
-		],
-	}
-	cc_library_shared {
-		name: "jni-lib3",
-		host_supported: true,
-		srcs: ["jni.cpp"],
-		stem: "libpink",
-	}
-	android_ravenwood_test {
+		cc_library_shared {
+			name: "jni-lib1",
+			host_supported: true,
+			srcs: ["jni.cpp"],
+		}
+		cc_library_shared {
+			name: "jni-lib2",
+			host_supported: true,
+			srcs: ["jni.cpp"],
+			stem: "libblue",
+			shared_libs: [
+				"jni-lib3",
+			],
+		}
+		cc_library_shared {
+			name: "jni-lib3",
+			host_supported: true,
+			srcs: ["jni.cpp"],
+			stem: "libpink",
+		}
+		android_ravenwood_test {
 			name: "ravenwood-test",
 			srcs: ["Test.java"],
 			jni_libs: [
@@ -156,6 +171,7 @@
 				"ravenwood-runtime-jni2",
 			],
 			resource_apk: "app2",
+			inst_resource_apk: "app3",
 			sdk_version: "test_current",
 		}
 	`)
@@ -183,6 +199,7 @@
 	module.Output(installPathPrefix + "/ravenwood-test/lib64/libblue.so")
 	module.Output(installPathPrefix + "/ravenwood-test/lib64/libpink.so")
 	module.Output(installPathPrefix + "/ravenwood-test/ravenwood-res-apks/ravenwood-res.apk")
+	module.Output(installPathPrefix + "/ravenwood-test/ravenwood-res-apks/ravenwood-inst-res.apk")
 
 	// ravenwood-runtime*.so are included in the runtime, so it shouldn't be emitted.
 	for _, o := range module.AllOutputs() {
diff --git a/java/sdk_library.go b/java/sdk_library.go
index 9cd07d0..eb9fa5f 100644
--- a/java/sdk_library.go
+++ b/java/sdk_library.go
@@ -29,11 +29,6 @@
 
 	"android/soong/android"
 	"android/soong/dexpreopt"
-	"android/soong/etc"
-)
-
-const (
-	sdkXmlFileSuffix = ".xml"
 )
 
 // A tag to associated a dependency with a specific api scope.
@@ -268,10 +263,6 @@
 	return baseName + ".stubs.source" + scope.moduleSuffix
 }
 
-func (scope *apiScope) apiModuleName(baseName string) string {
-	return baseName + ".api" + scope.moduleSuffix
-}
-
 func (scope *apiScope) String() string {
 	return scope.name
 }
@@ -961,56 +952,6 @@
 	return c.implLibraryModule
 }
 
-// Module name of the runtime implementation library
-func (c *commonToSdkLibraryAndImport) implLibraryModuleName() string {
-	return c.module.RootLibraryName() + ".impl"
-}
-
-// Module name of the XML file for the lib
-func (c *commonToSdkLibraryAndImport) xmlPermissionsModuleName() string {
-	return c.module.RootLibraryName() + sdkXmlFileSuffix
-}
-
-// Name of the java_library module that compiles the stubs source.
-func (c *commonToSdkLibraryAndImport) stubsLibraryModuleName(apiScope *apiScope) string {
-	baseName := c.module.RootLibraryName()
-	return apiScope.stubsLibraryModuleName(baseName)
-}
-
-// Name of the java_library module that compiles the exportable stubs source.
-func (c *commonToSdkLibraryAndImport) exportableStubsLibraryModuleName(apiScope *apiScope) string {
-	baseName := c.module.RootLibraryName()
-	return apiScope.exportableStubsLibraryModuleName(baseName)
-}
-
-// Name of the droidstubs module that generates the stubs source and may also
-// generate/check the API.
-func (c *commonToSdkLibraryAndImport) stubsSourceModuleName(apiScope *apiScope) string {
-	baseName := c.module.RootLibraryName()
-	return apiScope.stubsSourceModuleName(baseName)
-}
-
-// Name of the java_api_library module that generates the from-text stubs source
-// and compiles to a jar file.
-func (c *commonToSdkLibraryAndImport) apiLibraryModuleName(apiScope *apiScope) string {
-	baseName := c.module.RootLibraryName()
-	return apiScope.apiLibraryModuleName(baseName)
-}
-
-// Name of the java_library module that compiles the stubs
-// generated from source Java files.
-func (c *commonToSdkLibraryAndImport) sourceStubsLibraryModuleName(apiScope *apiScope) string {
-	baseName := c.module.RootLibraryName()
-	return apiScope.sourceStubsLibraryModuleName(baseName)
-}
-
-// Name of the java_library module that compiles the exportable stubs
-// generated from source Java files.
-func (c *commonToSdkLibraryAndImport) exportableSourceStubsLibraryModuleName(apiScope *apiScope) string {
-	baseName := c.module.RootLibraryName()
-	return apiScope.exportableSourceStubsLibraryModuleName(baseName)
-}
-
 // The component names for different outputs of the java_sdk_library.
 //
 // They are similar to the names used for the child modules it creates
@@ -1082,21 +1023,6 @@
 	return nil
 }
 
-func (c *commonToSdkLibraryAndImport) selectHeaderJarsForSdkVersion(ctx android.BaseModuleContext, sdkVersion android.SdkSpec) android.Paths {
-
-	// If a specific numeric version has been requested then use prebuilt versions of the sdk.
-	if !sdkVersion.ApiLevel.IsPreview() {
-		return PrebuiltJars(ctx, c.module.RootLibraryName(), sdkVersion)
-	}
-
-	paths := c.selectScopePaths(ctx, sdkVersion.Kind)
-	if paths == nil {
-		return nil
-	}
-
-	return paths.stubsHeaderPath
-}
-
 // selectScopePaths returns the *scopePaths appropriate for the specific kind.
 //
 // If the module does not support the specific kind then it will return the *scopePaths for the
@@ -1263,12 +1189,6 @@
 type SdkLibraryDependency interface {
 	SdkLibraryComponentDependency
 
-	// Get the header jars appropriate for the supplied sdk_version.
-	//
-	// These are turbine generated jars so they only change if the externals of the
-	// class changes but it does not contain and implementation or JavaDoc.
-	SdkHeaderJars(ctx android.BaseModuleContext, sdkVersion android.SdkSpec) android.Paths
-
 	// SdkApiStubDexJar returns the dex jar for the stubs for the prebuilt
 	// java_sdk_library_import module. It is needed by the hiddenapi processing tool which
 	// processes dex files.
@@ -1285,9 +1205,36 @@
 	// sharedLibrary returns true if this can be used as a shared library.
 	sharedLibrary() bool
 
+	// getImplLibraryModule returns the pointer to the implementation library submodule of this
+	// sdk library.
 	getImplLibraryModule() *Library
 }
 
+type SdkLibraryInfo struct {
+	// GeneratingLibs is the names of the library modules that this sdk library
+	// generates. Note that this only includes the name of the modules that other modules can
+	// depend on, and is not a holistic list of generated modules.
+	GeneratingLibs []string
+}
+
+var SdkLibraryInfoProvider = blueprint.NewProvider[SdkLibraryInfo]()
+
+func getGeneratingLibs(ctx android.ModuleContext, sdkVersion android.SdkSpec, sdkLibraryModuleName string, sdkInfo SdkLibraryInfo) []string {
+	apiLevel := sdkVersion.ApiLevel
+	if apiLevel.IsPreview() {
+		return sdkInfo.GeneratingLibs
+	}
+
+	generatingPrebuilts := []string{}
+	for _, apiScope := range AllApiScopes {
+		scopePrebuiltModuleName := prebuiltApiModuleName("sdk", sdkLibraryModuleName, apiScope.name, apiLevel.String())
+		if ctx.OtherModuleExists(scopePrebuiltModuleName) {
+			generatingPrebuilts = append(generatingPrebuilts, scopePrebuiltModuleName)
+		}
+	}
+	return generatingPrebuilts
+}
+
 type SdkLibrary struct {
 	Library
 
@@ -1431,7 +1378,7 @@
 		ctx.AddVariationDependencies(nil, apiScope.exportableStubsTag, exportableStubModuleName)
 
 		// Add a dependency on the stubs source in order to access both stubs source and api information.
-		ctx.AddVariationDependencies(nil, apiScope.stubsSourceAndApiTag, module.stubsSourceModuleName(apiScope))
+		ctx.AddVariationDependencies(nil, apiScope.stubsSourceAndApiTag, module.droidstubsModuleName(apiScope))
 
 		if module.compareAgainstLatestApi(apiScope) {
 			// Add dependencies on the latest finalized version of the API .txt file.
@@ -1613,9 +1560,22 @@
 	}
 	android.SetProvider(ctx, android.AdditionalSdkInfoProvider, android.AdditionalSdkInfo{additionalSdkInfo})
 	module.setOutputFiles(ctx)
+
+	var generatingLibs []string
+	for _, apiScope := range AllApiScopes {
+		if _, ok := module.scopePaths[apiScope]; ok {
+			generatingLibs = append(generatingLibs, module.stubsLibraryModuleName(apiScope))
+		}
+	}
+
 	if module.requiresRuntimeImplementationLibrary() && module.implLibraryModule != nil {
+		generatingLibs = append(generatingLibs, module.implLibraryModuleName())
 		setOutputFiles(ctx, module.implLibraryModule.Module)
 	}
+
+	android.SetProvider(ctx, SdkLibraryInfoProvider, SdkLibraryInfo{
+		GeneratingLibs: generatingLibs,
+	})
 }
 
 func (module *SdkLibrary) BuiltInstalledForApex() []dexpreopterInstall {
@@ -1722,411 +1682,6 @@
 	return visibility
 }
 
-// Creates the implementation java library
-func (module *SdkLibrary) createImplLibrary(mctx android.DefaultableHookContext) {
-	visibility := childModuleVisibility(module.sdkLibraryProperties.Impl_library_visibility)
-
-	staticLibs := module.properties.Static_libs.Clone()
-	staticLibs.AppendSimpleValue(module.sdkLibraryProperties.Impl_only_static_libs)
-	props := struct {
-		Name           *string
-		Visibility     []string
-		Libs           []string
-		Static_libs    proptools.Configurable[[]string]
-		Apex_available []string
-		Stem           *string
-	}{
-		Name:       proptools.StringPtr(module.implLibraryModuleName()),
-		Visibility: visibility,
-
-		Libs: append(module.properties.Libs, module.sdkLibraryProperties.Impl_only_libs...),
-
-		Static_libs: staticLibs,
-		// Pass the apex_available settings down so that the impl library can be statically
-		// embedded within a library that is added to an APEX. Needed for updatable-media.
-		Apex_available: module.ApexAvailable(),
-
-		Stem: proptools.StringPtr(module.Name()),
-	}
-
-	properties := []interface{}{
-		&module.properties,
-		&module.protoProperties,
-		&module.deviceProperties,
-		&module.dexProperties,
-		&module.dexpreoptProperties,
-		&module.linter.properties,
-		&module.overridableProperties,
-		&props,
-		module.sdkComponentPropertiesForChildLibrary(),
-	}
-	mctx.CreateModule(LibraryFactory, properties...)
-}
-
-type libraryProperties struct {
-	Name           *string
-	Visibility     []string
-	Srcs           []string
-	Installable    *bool
-	Sdk_version    *string
-	System_modules *string
-	Patch_module   *string
-	Libs           []string
-	Static_libs    []string
-	Compile_dex    *bool
-	Java_version   *string
-	Openjdk9       struct {
-		Srcs       []string
-		Javacflags []string
-	}
-	Dist struct {
-		Targets []string
-		Dest    *string
-		Dir     *string
-		Tag     *string
-	}
-	Is_stubs_module       *bool
-	Stub_contributing_api *string
-}
-
-func (module *SdkLibrary) stubsLibraryProps(mctx android.DefaultableHookContext, apiScope *apiScope) libraryProperties {
-	props := libraryProperties{}
-	props.Visibility = []string{"//visibility:override", "//visibility:private"}
-	// sources are generated from the droiddoc
-	sdkVersion := module.sdkVersionForStubsLibrary(mctx, apiScope)
-	props.Sdk_version = proptools.StringPtr(sdkVersion)
-	props.System_modules = module.deviceProperties.System_modules
-	props.Patch_module = module.properties.Patch_module
-	props.Installable = proptools.BoolPtr(false)
-	props.Libs = module.sdkLibraryProperties.Stub_only_libs
-	props.Libs = append(props.Libs, module.scopeToProperties[apiScope].Libs...)
-	props.Static_libs = module.sdkLibraryProperties.Stub_only_static_libs
-	// The stub-annotations library contains special versions of the annotations
-	// with CLASS retention policy, so that they're kept.
-	if proptools.Bool(module.sdkLibraryProperties.Annotations_enabled) {
-		props.Libs = append(props.Libs, "stub-annotations")
-	}
-	props.Openjdk9.Srcs = module.properties.Openjdk9.Srcs
-	props.Openjdk9.Javacflags = module.properties.Openjdk9.Javacflags
-	// We compile the stubs for 1.8 in line with the main android.jar stubs, and potential
-	// interop with older developer tools that don't support 1.9.
-	props.Java_version = proptools.StringPtr("1.8")
-	props.Is_stubs_module = proptools.BoolPtr(true)
-	props.Stub_contributing_api = proptools.StringPtr(apiScope.kind.String())
-
-	return props
-}
-
-// Creates a static java library that has API stubs
-func (module *SdkLibrary) createStubsLibrary(mctx android.DefaultableHookContext, apiScope *apiScope) {
-
-	props := module.stubsLibraryProps(mctx, apiScope)
-	props.Name = proptools.StringPtr(module.sourceStubsLibraryModuleName(apiScope))
-	props.Srcs = []string{":" + module.stubsSourceModuleName(apiScope)}
-
-	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
-// Create a static java library that compiles the "exportable" stubs
-func (module *SdkLibrary) createExportableStubsLibrary(mctx android.DefaultableHookContext, apiScope *apiScope) {
-	props := module.stubsLibraryProps(mctx, apiScope)
-	props.Name = proptools.StringPtr(module.exportableSourceStubsLibraryModuleName(apiScope))
-	props.Srcs = []string{":" + module.stubsSourceModuleName(apiScope) + "{.exportable}"}
-
-	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
-// Creates a droidstubs module that creates stubs source files from the given full source
-// files and also updates and checks the API specification files.
-func (module *SdkLibrary) createStubsSourcesAndApi(mctx android.DefaultableHookContext, apiScope *apiScope, name string, scopeSpecificDroidstubsArgs []string) {
-	props := struct {
-		Name                             *string
-		Visibility                       []string
-		Srcs                             []string
-		Installable                      *bool
-		Sdk_version                      *string
-		Api_surface                      *string
-		System_modules                   *string
-		Libs                             proptools.Configurable[[]string]
-		Output_javadoc_comments          *bool
-		Arg_files                        []string
-		Args                             *string
-		Java_version                     *string
-		Annotations_enabled              *bool
-		Merge_annotations_dirs           []string
-		Merge_inclusion_annotations_dirs []string
-		Generate_stubs                   *bool
-		Previous_api                     *string
-		Aconfig_declarations             []string
-		Check_api                        struct {
-			Current       ApiToCheck
-			Last_released ApiToCheck
-
-			Api_lint struct {
-				Enabled       *bool
-				New_since     *string
-				Baseline_file *string
-			}
-		}
-		Aidl struct {
-			Include_dirs       []string
-			Local_include_dirs []string
-		}
-		Dists []android.Dist
-	}{}
-
-	// The stubs source processing uses the same compile time classpath when extracting the
-	// API from the implementation library as it does when compiling it. i.e. the same
-	// * sdk version
-	// * system_modules
-	// * libs (static_libs/libs)
-
-	props.Name = proptools.StringPtr(name)
-	props.Visibility = childModuleVisibility(module.sdkLibraryProperties.Stubs_source_visibility)
-	props.Srcs = append(props.Srcs, module.properties.Srcs...)
-	props.Srcs = append(props.Srcs, module.sdkLibraryProperties.Api_srcs...)
-	props.Sdk_version = module.deviceProperties.Sdk_version
-	props.Api_surface = &apiScope.name
-	props.System_modules = module.deviceProperties.System_modules
-	props.Installable = proptools.BoolPtr(false)
-	// A droiddoc module has only one Libs property and doesn't distinguish between
-	// shared libs and static libs. So we need to add both of these libs to Libs property.
-	props.Libs = proptools.NewConfigurable[[]string](nil, nil)
-	props.Libs.AppendSimpleValue(module.properties.Libs)
-	props.Libs.Append(module.properties.Static_libs)
-	props.Libs.AppendSimpleValue(module.sdkLibraryProperties.Stub_only_libs)
-	props.Libs.AppendSimpleValue(module.scopeToProperties[apiScope].Libs)
-	props.Aidl.Include_dirs = module.deviceProperties.Aidl.Include_dirs
-	props.Aidl.Local_include_dirs = module.deviceProperties.Aidl.Local_include_dirs
-	props.Java_version = module.properties.Java_version
-
-	props.Annotations_enabled = module.sdkLibraryProperties.Annotations_enabled
-	props.Merge_annotations_dirs = module.sdkLibraryProperties.Merge_annotations_dirs
-	props.Merge_inclusion_annotations_dirs = module.sdkLibraryProperties.Merge_inclusion_annotations_dirs
-	props.Aconfig_declarations = module.sdkLibraryProperties.Aconfig_declarations
-
-	droidstubsArgs := []string{}
-	if len(module.sdkLibraryProperties.Api_packages) != 0 {
-		droidstubsArgs = append(droidstubsArgs, "--stub-packages "+strings.Join(module.sdkLibraryProperties.Api_packages, ":"))
-	}
-	droidstubsArgs = append(droidstubsArgs, module.sdkLibraryProperties.Droiddoc_options...)
-	disabledWarnings := []string{"HiddenSuperclass"}
-	if proptools.BoolDefault(module.sdkLibraryProperties.Api_lint.Legacy_errors_allowed, true) {
-		disabledWarnings = append(disabledWarnings,
-			"BroadcastBehavior",
-			"DeprecationMismatch",
-			"MissingPermission",
-			"SdkConstant",
-			"Todo",
-		)
-	}
-	droidstubsArgs = append(droidstubsArgs, android.JoinWithPrefix(disabledWarnings, "--hide "))
-
-	// Output Javadoc comments for public scope.
-	if apiScope == apiScopePublic {
-		props.Output_javadoc_comments = proptools.BoolPtr(true)
-	}
-
-	// Add in scope specific arguments.
-	droidstubsArgs = append(droidstubsArgs, scopeSpecificDroidstubsArgs...)
-	props.Arg_files = module.sdkLibraryProperties.Droiddoc_option_files
-	props.Args = proptools.StringPtr(strings.Join(droidstubsArgs, " "))
-
-	// List of APIs identified from the provided source files are created. They are later
-	// compared against to the not-yet-released (a.k.a current) list of APIs and to the
-	// last-released (a.k.a numbered) list of API.
-	currentApiFileName := apiScope.apiFilePrefix + "current.txt"
-	removedApiFileName := apiScope.apiFilePrefix + "removed.txt"
-	apiDir := module.getApiDir()
-	currentApiFileName = path.Join(apiDir, currentApiFileName)
-	removedApiFileName = path.Join(apiDir, removedApiFileName)
-
-	// check against the not-yet-release API
-	props.Check_api.Current.Api_file = proptools.StringPtr(currentApiFileName)
-	props.Check_api.Current.Removed_api_file = proptools.StringPtr(removedApiFileName)
-
-	if module.compareAgainstLatestApi(apiScope) {
-		// check against the latest released API
-		latestApiFilegroupName := proptools.StringPtr(module.latestApiFilegroupName(apiScope))
-		props.Previous_api = latestApiFilegroupName
-		props.Check_api.Last_released.Api_file = latestApiFilegroupName
-		props.Check_api.Last_released.Removed_api_file = proptools.StringPtr(
-			module.latestRemovedApiFilegroupName(apiScope))
-		props.Check_api.Last_released.Baseline_file = proptools.StringPtr(
-			module.latestIncompatibilitiesFilegroupName(apiScope))
-
-		if proptools.Bool(module.sdkLibraryProperties.Api_lint.Enabled) {
-			// Enable api lint.
-			props.Check_api.Api_lint.Enabled = proptools.BoolPtr(true)
-			props.Check_api.Api_lint.New_since = latestApiFilegroupName
-
-			// If it exists then pass a lint-baseline.txt through to droidstubs.
-			baselinePath := path.Join(apiDir, apiScope.apiFilePrefix+"lint-baseline.txt")
-			baselinePathRelativeToRoot := path.Join(mctx.ModuleDir(), baselinePath)
-			paths, err := mctx.GlobWithDeps(baselinePathRelativeToRoot, nil)
-			if err != nil {
-				mctx.ModuleErrorf("error checking for presence of %s: %s", baselinePathRelativeToRoot, err)
-			}
-			if len(paths) == 1 {
-				props.Check_api.Api_lint.Baseline_file = proptools.StringPtr(baselinePath)
-			} else if len(paths) != 0 {
-				mctx.ModuleErrorf("error checking for presence of %s: expected one path, found: %v", baselinePathRelativeToRoot, paths)
-			}
-		}
-	}
-
-	if !Bool(module.sdkLibraryProperties.No_dist) {
-		// Dist the api txt and removed api txt artifacts for sdk builds.
-		distDir := proptools.StringPtr(path.Join(module.apiDistPath(apiScope), "api"))
-		stubsTypeTagPrefix := ""
-		if mctx.Config().ReleaseHiddenApiExportableStubs() {
-			stubsTypeTagPrefix = ".exportable"
-		}
-		for _, p := range []struct {
-			tag     string
-			pattern string
-		}{
-			// "exportable" api files are copied to the dist directory instead of the
-			// "everything" api files when "RELEASE_HIDDEN_API_EXPORTABLE_STUBS" build flag
-			// is set. Otherwise, the "everything" api files are copied to the dist directory.
-			{tag: "%s.api.txt", pattern: "%s.txt"},
-			{tag: "%s.removed-api.txt", pattern: "%s-removed.txt"},
-		} {
-			props.Dists = append(props.Dists, android.Dist{
-				Targets: []string{"sdk", "win_sdk"},
-				Dir:     distDir,
-				Dest:    proptools.StringPtr(fmt.Sprintf(p.pattern, module.distStem())),
-				Tag:     proptools.StringPtr(fmt.Sprintf(p.tag, stubsTypeTagPrefix)),
-			})
-		}
-	}
-
-	mctx.CreateModule(DroidstubsFactory, &props, module.sdkComponentPropertiesForChildLibrary()).(*Droidstubs).CallHookIfAvailable(mctx)
-}
-
-func (module *SdkLibrary) createApiLibrary(mctx android.DefaultableHookContext, apiScope *apiScope) {
-	props := struct {
-		Name              *string
-		Visibility        []string
-		Api_contributions []string
-		Libs              proptools.Configurable[[]string]
-		Static_libs       []string
-		System_modules    *string
-		Enable_validation *bool
-		Stubs_type        *string
-		Sdk_version       *string
-		Previous_api      *string
-	}{}
-
-	props.Name = proptools.StringPtr(module.apiLibraryModuleName(apiScope))
-	props.Visibility = []string{"//visibility:override", "//visibility:private"}
-
-	apiContributions := []string{}
-
-	// Api surfaces are not independent of each other, but have subset relationships,
-	// and so does the api files. To generate from-text stubs for api surfaces other than public,
-	// all subset api domains' api_contriubtions must be added as well.
-	scope := apiScope
-	for scope != nil {
-		apiContributions = append(apiContributions, module.stubsSourceModuleName(scope)+".api.contribution")
-		scope = scope.extends
-	}
-	if apiScope == apiScopePublic {
-		additionalApiContribution := module.apiLibraryAdditionalApiContribution()
-		if additionalApiContribution != "" {
-			apiContributions = append(apiContributions, additionalApiContribution)
-		}
-	}
-
-	props.Api_contributions = apiContributions
-
-	// Ensure that stub-annotations is added to the classpath before any other libs
-	props.Libs = proptools.NewConfigurable[[]string](nil, nil)
-	props.Libs.AppendSimpleValue([]string{"stub-annotations"})
-	props.Libs.AppendSimpleValue(module.properties.Libs)
-	props.Libs.Append(module.properties.Static_libs)
-	props.Libs.AppendSimpleValue(module.sdkLibraryProperties.Stub_only_libs)
-	props.Libs.AppendSimpleValue(module.scopeToProperties[apiScope].Libs)
-	props.Static_libs = module.sdkLibraryProperties.Stub_only_static_libs
-
-	props.System_modules = module.deviceProperties.System_modules
-	props.Enable_validation = proptools.BoolPtr(true)
-	props.Stubs_type = proptools.StringPtr("everything")
-
-	if module.deviceProperties.Sdk_version != nil {
-		props.Sdk_version = module.deviceProperties.Sdk_version
-	}
-
-	if module.compareAgainstLatestApi(apiScope) {
-		// check against the latest released API
-		latestApiFilegroupName := proptools.StringPtr(module.latestApiFilegroupName(apiScope))
-		props.Previous_api = latestApiFilegroupName
-	}
-
-	mctx.CreateModule(ApiLibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
-func (module *SdkLibrary) topLevelStubsLibraryProps(mctx android.DefaultableHookContext, apiScope *apiScope, doDist bool) libraryProperties {
-	props := libraryProperties{}
-
-	props.Visibility = childModuleVisibility(module.sdkLibraryProperties.Stubs_library_visibility)
-	sdkVersion := module.sdkVersionForStubsLibrary(mctx, apiScope)
-	props.Sdk_version = proptools.StringPtr(sdkVersion)
-
-	props.System_modules = module.deviceProperties.System_modules
-
-	// The imports need to be compiled to dex if the java_sdk_library requests it.
-	compileDex := module.dexProperties.Compile_dex
-	if module.stubLibrariesCompiledForDex() {
-		compileDex = proptools.BoolPtr(true)
-	}
-	props.Compile_dex = compileDex
-
-	props.Stub_contributing_api = proptools.StringPtr(apiScope.kind.String())
-
-	if !Bool(module.sdkLibraryProperties.No_dist) && doDist {
-		props.Dist.Targets = []string{"sdk", "win_sdk"}
-		props.Dist.Dest = proptools.StringPtr(fmt.Sprintf("%v.jar", module.distStem()))
-		props.Dist.Dir = proptools.StringPtr(module.apiDistPath(apiScope))
-		props.Dist.Tag = proptools.StringPtr(".jar")
-	}
-	props.Is_stubs_module = proptools.BoolPtr(true)
-
-	return props
-}
-
-func (module *SdkLibrary) createTopLevelStubsLibrary(
-	mctx android.DefaultableHookContext, apiScope *apiScope) {
-
-	// Dist the "everything" stubs when the RELEASE_HIDDEN_API_EXPORTABLE_STUBS build flag is false
-	doDist := !mctx.Config().ReleaseHiddenApiExportableStubs()
-	props := module.topLevelStubsLibraryProps(mctx, apiScope, doDist)
-	props.Name = proptools.StringPtr(module.stubsLibraryModuleName(apiScope))
-
-	// Add the stub compiling java_library/java_api_library as static lib based on build config
-	staticLib := module.sourceStubsLibraryModuleName(apiScope)
-	if mctx.Config().BuildFromTextStub() && module.ModuleBuildFromTextStubs() {
-		staticLib = module.apiLibraryModuleName(apiScope)
-	}
-	props.Static_libs = append(props.Static_libs, staticLib)
-
-	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
-func (module *SdkLibrary) createTopLevelExportableStubsLibrary(
-	mctx android.DefaultableHookContext, apiScope *apiScope) {
-
-	// Dist the "exportable" stubs when the RELEASE_HIDDEN_API_EXPORTABLE_STUBS build flag is true
-	doDist := mctx.Config().ReleaseHiddenApiExportableStubs()
-	props := module.topLevelStubsLibraryProps(mctx, apiScope, doDist)
-	props.Name = proptools.StringPtr(module.exportableStubsLibraryModuleName(apiScope))
-
-	staticLib := module.exportableSourceStubsLibraryModuleName(apiScope)
-	props.Static_libs = append(props.Static_libs, staticLib)
-
-	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
 func (module *SdkLibrary) compareAgainstLatestApi(apiScope *apiScope) bool {
 	return !(apiScope.unstable || module.sdkLibraryProperties.Unsafe_ignore_missing_latest_api)
 }
@@ -2152,104 +1707,6 @@
 	return proptools.BoolDefault(module.sdkLibraryProperties.Build_from_text_stub, true)
 }
 
-// Creates the xml file that publicizes the runtime library
-func (module *SdkLibrary) createXmlFile(mctx android.DefaultableHookContext) {
-	moduleMinApiLevel := module.Library.MinSdkVersion(mctx)
-	var moduleMinApiLevelStr = moduleMinApiLevel.String()
-	if moduleMinApiLevel == android.NoneApiLevel {
-		moduleMinApiLevelStr = "current"
-	}
-	props := struct {
-		Name                      *string
-		Lib_name                  *string
-		Apex_available            []string
-		On_bootclasspath_since    *string
-		On_bootclasspath_before   *string
-		Min_device_sdk            *string
-		Max_device_sdk            *string
-		Sdk_library_min_api_level *string
-		Uses_libs_dependencies    []string
-	}{
-		Name:                      proptools.StringPtr(module.xmlPermissionsModuleName()),
-		Lib_name:                  proptools.StringPtr(module.BaseModuleName()),
-		Apex_available:            module.ApexProperties.Apex_available,
-		On_bootclasspath_since:    module.commonSdkLibraryProperties.On_bootclasspath_since,
-		On_bootclasspath_before:   module.commonSdkLibraryProperties.On_bootclasspath_before,
-		Min_device_sdk:            module.commonSdkLibraryProperties.Min_device_sdk,
-		Max_device_sdk:            module.commonSdkLibraryProperties.Max_device_sdk,
-		Sdk_library_min_api_level: &moduleMinApiLevelStr,
-		Uses_libs_dependencies:    module.usesLibraryProperties.Uses_libs,
-	}
-
-	mctx.CreateModule(sdkLibraryXmlFactory, &props)
-}
-
-func PrebuiltJars(ctx android.BaseModuleContext, baseName string, s android.SdkSpec) android.Paths {
-	var ver android.ApiLevel
-	var kind android.SdkKind
-	if s.UsePrebuilt(ctx) {
-		ver = s.ApiLevel
-		kind = s.Kind
-	} else {
-		// We don't have prebuilt SDK for the specific sdkVersion.
-		// Instead of breaking the build, fallback to use "system_current"
-		ver = android.FutureApiLevel
-		kind = android.SdkSystem
-	}
-
-	dir := filepath.Join("prebuilts", "sdk", ver.String(), kind.String())
-	jar := filepath.Join(dir, baseName+".jar")
-	jarPath := android.ExistentPathForSource(ctx, jar)
-	if !jarPath.Valid() {
-		if ctx.Config().AllowMissingDependencies() {
-			return android.Paths{android.PathForSource(ctx, jar)}
-		} else {
-			ctx.PropertyErrorf("sdk_library", "invalid sdk version %q, %q does not exist", s.Raw, jar)
-		}
-		return nil
-	}
-	return android.Paths{jarPath.Path()}
-}
-
-// Check to see if the other module is within the same set of named APEXes as this module.
-//
-// If either this or the other module are on the platform then this will return
-// false.
-func withinSameApexesAs(ctx android.BaseModuleContext, other android.Module) bool {
-	apexInfo, _ := android.ModuleProvider(ctx, android.ApexInfoProvider)
-	otherApexInfo, _ := android.OtherModuleProvider(ctx, other, android.ApexInfoProvider)
-	return len(otherApexInfo.InApexVariants) > 0 && reflect.DeepEqual(apexInfo.InApexVariants, otherApexInfo.InApexVariants)
-}
-
-func (module *SdkLibrary) sdkJars(ctx android.BaseModuleContext, sdkVersion android.SdkSpec) android.Paths {
-	// If the client doesn't set sdk_version, but if this library prefers stubs over
-	// the impl library, let's provide the widest API surface possible. To do so,
-	// force override sdk_version to module_current so that the closest possible API
-	// surface could be found in selectHeaderJarsForSdkVersion
-	if module.defaultsToStubs() && !sdkVersion.Specified() {
-		sdkVersion = android.SdkSpecFrom(ctx, "module_current")
-	}
-
-	// Only provide access to the implementation library if it is actually built.
-	if module.requiresRuntimeImplementationLibrary() {
-		// Check any special cases for java_sdk_library.
-		//
-		// Only allow access to the implementation library in the following condition:
-		// * No sdk_version specified on the referencing module.
-		// * The referencing module is in the same apex as this.
-		if sdkVersion.Kind == android.SdkPrivate || withinSameApexesAs(ctx, module) {
-			return module.implLibraryHeaderJars
-		}
-	}
-
-	return module.selectHeaderJarsForSdkVersion(ctx, sdkVersion)
-}
-
-// to satisfy SdkLibraryDependency interface
-func (module *SdkLibrary) SdkHeaderJars(ctx android.BaseModuleContext, sdkVersion android.SdkSpec) android.Paths {
-	return module.sdkJars(ctx, sdkVersion)
-}
-
 var javaSdkLibrariesKey = android.NewOnceKey("javaSdkLibraries")
 
 func javaSdkLibraries(config android.Config) *[]string {
@@ -2266,11 +1723,6 @@
 // runtime libs and xml file. If requested, the stubs and docs are created twice
 // once for public API level and once for system API level
 func (module *SdkLibrary) CreateInternalModules(mctx android.DefaultableHookContext) {
-	// If the module has been disabled then don't create any child modules.
-	if !module.Enabled(mctx) {
-		return
-	}
-
 	if len(module.properties.Srcs) == 0 {
 		mctx.PropertyErrorf("srcs", "java_sdk_library must specify srcs")
 		return
@@ -2320,10 +1772,10 @@
 
 	for _, scope := range generatedScopes {
 		// Use the stubs source name for legacy reasons.
-		module.createStubsSourcesAndApi(mctx, scope, module.stubsSourceModuleName(scope), scope.droidstubsArgs)
+		module.createDroidstubs(mctx, scope, module.droidstubsModuleName(scope), scope.droidstubsArgs)
 
-		module.createStubsLibrary(mctx, scope)
-		module.createExportableStubsLibrary(mctx, scope)
+		module.createFromSourceStubsLibrary(mctx, scope)
+		module.createExportableFromSourceStubsLibrary(mctx, scope)
 
 		if mctx.Config().BuildFromTextStub() && module.ModuleBuildFromTextStubs() {
 			module.createApiLibrary(mctx, scope)
@@ -2373,10 +1825,6 @@
 	return !proptools.Bool(module.sdkLibraryProperties.Api_only)
 }
 
-func (module *SdkLibrary) defaultsToStubs() bool {
-	return proptools.Bool(module.sdkLibraryProperties.Default_to_stubs)
-}
-
 func moduleStubLinkType(j *Module) (stub bool, ret sdkLinkType) {
 	kind := android.ToSdkKind(proptools.String(j.properties.Stub_contributing_api))
 	switch kind {
@@ -2628,86 +2076,6 @@
 	*javaSdkLibraries = append(*javaSdkLibraries, module.BaseModuleName())
 }
 
-func (module *SdkLibraryImport) createJavaImportForStubs(mctx android.DefaultableHookContext, apiScope *apiScope, scopeProperties *sdkLibraryScopeProperties) {
-	// Creates a java import for the jar with ".stubs" suffix
-	props := struct {
-		Name                             *string
-		Source_module_name               *string
-		Created_by_java_sdk_library_name *string
-		Sdk_version                      *string
-		Libs                             []string
-		Jars                             []string
-		Compile_dex                      *bool
-		Is_stubs_module                  *bool
-
-		android.UserSuppliedPrebuiltProperties
-	}{}
-	props.Name = proptools.StringPtr(module.stubsLibraryModuleName(apiScope))
-	props.Source_module_name = proptools.StringPtr(apiScope.stubsLibraryModuleName(module.BaseModuleName()))
-	props.Created_by_java_sdk_library_name = proptools.StringPtr(module.RootLibraryName())
-	props.Sdk_version = scopeProperties.Sdk_version
-	// Prepend any of the libs from the legacy public properties to the libs for each of the
-	// scopes to avoid having to duplicate them in each scope.
-	props.Libs = append(module.properties.Libs, scopeProperties.Libs...)
-	props.Jars = scopeProperties.Jars
-
-	// The imports are preferred if the java_sdk_library_import is preferred.
-	props.CopyUserSuppliedPropertiesFromPrebuilt(&module.prebuilt)
-
-	// The imports need to be compiled to dex if the java_sdk_library_import requests it.
-	compileDex := module.properties.Compile_dex
-	if module.stubLibrariesCompiledForDex() {
-		compileDex = proptools.BoolPtr(true)
-	}
-	props.Compile_dex = compileDex
-	props.Is_stubs_module = proptools.BoolPtr(true)
-
-	mctx.CreateModule(ImportFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
-func (module *SdkLibraryImport) createPrebuiltStubsSources(mctx android.DefaultableHookContext, apiScope *apiScope, scopeProperties *sdkLibraryScopeProperties) {
-	props := struct {
-		Name                             *string
-		Source_module_name               *string
-		Created_by_java_sdk_library_name *string
-		Srcs                             []string
-
-		android.UserSuppliedPrebuiltProperties
-	}{}
-	props.Name = proptools.StringPtr(module.stubsSourceModuleName(apiScope))
-	props.Source_module_name = proptools.StringPtr(apiScope.stubsSourceModuleName(module.BaseModuleName()))
-	props.Created_by_java_sdk_library_name = proptools.StringPtr(module.RootLibraryName())
-	props.Srcs = scopeProperties.Stub_srcs
-
-	// The stubs source is preferred if the java_sdk_library_import is preferred.
-	props.CopyUserSuppliedPropertiesFromPrebuilt(&module.prebuilt)
-
-	mctx.CreateModule(PrebuiltStubsSourcesFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
-func (module *SdkLibraryImport) createPrebuiltApiContribution(mctx android.DefaultableHookContext, apiScope *apiScope, scopeProperties *sdkLibraryScopeProperties) {
-	api_file := scopeProperties.Current_api
-	api_surface := &apiScope.name
-
-	props := struct {
-		Name                             *string
-		Source_module_name               *string
-		Created_by_java_sdk_library_name *string
-		Api_surface                      *string
-		Api_file                         *string
-		Visibility                       []string
-	}{}
-
-	props.Name = proptools.StringPtr(module.stubsSourceModuleName(apiScope) + ".api.contribution")
-	props.Source_module_name = proptools.StringPtr(apiScope.stubsSourceModuleName(module.BaseModuleName()) + ".api.contribution")
-	props.Created_by_java_sdk_library_name = proptools.StringPtr(module.RootLibraryName())
-	props.Api_surface = api_surface
-	props.Api_file = api_file
-	props.Visibility = []string{"//visibility:override", "//visibility:public"}
-
-	mctx.CreateModule(ApiContributionImportFactory, &props, module.sdkComponentPropertiesForChildLibrary())
-}
-
 // Add the dependencies on the child module in the component deps mutator so that it
 // creates references to the prebuilt and not the source modules.
 func (module *SdkLibraryImport) ComponentDepsMutator(ctx android.BottomUpMutatorContext) {
@@ -2721,7 +2089,7 @@
 
 		if len(scopeProperties.Stub_srcs) > 0 {
 			// Add dependencies to the prebuilt stubs source library
-			ctx.AddVariationDependencies(nil, apiScope.stubsSourceTag, android.PrebuiltNameFromSource(module.stubsSourceModuleName(apiScope)))
+			ctx.AddVariationDependencies(nil, apiScope.stubsSourceTag, android.PrebuiltNameFromSource(module.droidstubsModuleName(apiScope)))
 		}
 	}
 }
@@ -2820,69 +2188,36 @@
 	}
 
 	if ctx.Device() {
-		// If this is a variant created for a prebuilt_apex then use the dex implementation jar
-		// obtained from the associated deapexer module.
+		// Shared libraries deapexed from prebuilt apexes are no longer supported.
+		// Set the dexJarBuildPath to a fake path.
+		// This allows soong analysis pass, but will be an error during ninja execution if there are
+		// any rdeps.
 		ai, _ := android.ModuleProvider(ctx, android.ApexInfoProvider)
 		if ai.ForPrebuiltApex {
-			// Get the path of the dex implementation jar from the `deapexer` module.
-			di, err := android.FindDeapexerProviderForModule(ctx)
-			if err != nil {
-				// An error was found, possibly due to multiple apexes in the tree that export this library
-				// Defer the error till a client tries to call DexJarBuildPath
-				module.dexJarFileErr = err
-				module.initHiddenAPIError(err)
-				return
-			}
-			dexJarFileApexRootRelative := ApexRootRelativePathToJavaLib(module.BaseModuleName())
-			if dexOutputPath := di.PrebuiltExportPath(dexJarFileApexRootRelative); dexOutputPath != nil {
-				dexJarFile := makeDexJarPathFromPath(dexOutputPath)
-				module.dexJarFile = dexJarFile
-				installPath := android.PathForModuleInPartitionInstall(
-					ctx, "apex", ai.ApexVariationName, dexJarFileApexRootRelative)
-				module.installFile = installPath
-				module.initHiddenAPI(ctx, dexJarFile, module.findScopePaths(apiScopePublic).stubsImplPath[0], nil)
+			module.dexJarFile = makeDexJarPathFromPath(android.PathForModuleInstall(ctx, "intentionally_no_longer_supported"))
+			module.initHiddenAPI(ctx, module.dexJarFile, module.findScopePaths(apiScopePublic).stubsImplPath[0], nil)
+		}
+	}
 
-				module.dexpreopter.installPath = module.dexpreopter.getInstallPath(ctx, android.RemoveOptionalPrebuiltPrefix(ctx.ModuleName()), installPath)
-				module.dexpreopter.isSDKLibrary = true
-				module.dexpreopter.uncompressedDex = shouldUncompressDex(ctx, android.RemoveOptionalPrebuiltPrefix(ctx.ModuleName()), &module.dexpreopter)
-
-				if profilePath := di.PrebuiltExportPath(dexJarFileApexRootRelative + ".prof"); profilePath != nil {
-					module.dexpreopter.inputProfilePathOnHost = profilePath
-				}
-			} else {
-				// This should never happen as a variant for a prebuilt_apex is only created if the
-				// prebuilt_apex has been configured to export the java library dex file.
-				ctx.ModuleErrorf("internal error: no dex implementation jar available from prebuilt APEX %s", di.ApexModuleName())
+	var generatingLibs []string
+	for _, apiScope := range AllApiScopes {
+		if scopeProperties, ok := module.scopeProperties[apiScope]; ok {
+			if len(scopeProperties.Jars) == 0 {
+				continue
 			}
+			generatingLibs = append(generatingLibs, module.stubsLibraryModuleName(apiScope))
 		}
 	}
 
 	module.setOutputFiles(ctx)
 	if module.implLibraryModule != nil {
+		generatingLibs = append(generatingLibs, module.implLibraryModuleName())
 		setOutputFiles(ctx, module.implLibraryModule.Module)
 	}
-}
 
-func (module *SdkLibraryImport) sdkJars(ctx android.BaseModuleContext, sdkVersion android.SdkSpec, headerJars bool) android.Paths {
-
-	// For consistency with SdkLibrary make the implementation jar available to libraries that
-	// are within the same APEX.
-	implLibraryModule := module.implLibraryModule
-	if implLibraryModule != nil && withinSameApexesAs(ctx, module) {
-		if headerJars {
-			return implLibraryModule.HeaderJars()
-		} else {
-			return implLibraryModule.ImplementationJars()
-		}
-	}
-
-	return module.selectHeaderJarsForSdkVersion(ctx, sdkVersion)
-}
-
-// to satisfy SdkLibraryDependency interface
-func (module *SdkLibraryImport) SdkHeaderJars(ctx android.BaseModuleContext, sdkVersion android.SdkSpec) android.Paths {
-	// This module is just a wrapper for the prebuilt stubs.
-	return module.sdkJars(ctx, sdkVersion, true)
+	android.SetProvider(ctx, SdkLibraryInfoProvider, SdkLibraryInfo{
+		GeneratingLibs: generatingLibs,
+	})
 }
 
 // to satisfy UsesLibraryDependency interface
@@ -2977,333 +2312,6 @@
 	return proptools.Bool(j.importDexpreoptProperties.Dex_preopt.Profile_guided)
 }
 
-// java_sdk_library_xml
-type sdkLibraryXml struct {
-	android.ModuleBase
-	android.DefaultableModuleBase
-	android.ApexModuleBase
-
-	properties sdkLibraryXmlProperties
-
-	outputFilePath android.OutputPath
-	installDirPath android.InstallPath
-
-	hideApexVariantFromMake bool
-}
-
-type sdkLibraryXmlProperties struct {
-	// canonical name of the lib
-	Lib_name *string
-
-	// Signals that this shared library is part of the bootclasspath starting
-	// on the version indicated in this attribute.
-	//
-	// This will make platforms at this level and above to ignore
-	// <uses-library> tags with this library name because the library is already
-	// available
-	On_bootclasspath_since *string
-
-	// Signals that this shared library was part of the bootclasspath before
-	// (but not including) the version indicated in this attribute.
-	//
-	// The system will automatically add a <uses-library> tag with this library to
-	// apps that target any SDK less than the version indicated in this attribute.
-	On_bootclasspath_before *string
-
-	// Indicates that PackageManager should ignore this shared library if the
-	// platform is below the version indicated in this attribute.
-	//
-	// This means that the device won't recognise this library as installed.
-	Min_device_sdk *string
-
-	// Indicates that PackageManager should ignore this shared library if the
-	// platform is above the version indicated in this attribute.
-	//
-	// This means that the device won't recognise this library as installed.
-	Max_device_sdk *string
-
-	// The SdkLibrary's min api level as a string
-	//
-	// This value comes from the ApiLevel of the MinSdkVersion property.
-	Sdk_library_min_api_level *string
-
-	// Uses-libs dependencies that the shared library requires to work correctly.
-	//
-	// This will add dependency="foo:bar" to the <library> section.
-	Uses_libs_dependencies []string
-}
-
-// java_sdk_library_xml builds the permission xml file for a java_sdk_library.
-// Not to be used directly by users. java_sdk_library internally uses this.
-func sdkLibraryXmlFactory() android.Module {
-	module := &sdkLibraryXml{}
-
-	module.AddProperties(&module.properties)
-
-	android.InitApexModule(module)
-	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
-
-	return module
-}
-
-func (module *sdkLibraryXml) UniqueApexVariations() bool {
-	// sdkLibraryXml needs a unique variation per APEX because the generated XML file contains the path to the
-	// mounted APEX, which contains the name of the APEX.
-	return true
-}
-
-// from android.PrebuiltEtcModule
-func (module *sdkLibraryXml) BaseDir() string {
-	return "etc"
-}
-
-// from android.PrebuiltEtcModule
-func (module *sdkLibraryXml) SubDir() string {
-	return "permissions"
-}
-
-var _ etc.PrebuiltEtcModule = (*sdkLibraryXml)(nil)
-
-// from android.ApexModule
-func (module *sdkLibraryXml) AvailableFor(what string) bool {
-	return true
-}
-
-func (module *sdkLibraryXml) DepsMutator(ctx android.BottomUpMutatorContext) {
-	// do nothing
-}
-
-var _ android.ApexModule = (*sdkLibraryXml)(nil)
-
-// Implements android.ApexModule
-func (module *sdkLibraryXml) ShouldSupportSdkVersion(ctx android.BaseModuleContext,
-	sdkVersion android.ApiLevel) error {
-	// sdkLibraryXml doesn't need to be checked separately because java_sdk_library is checked
-	return nil
-}
-
-// File path to the runtime implementation library
-func (module *sdkLibraryXml) implPath(ctx android.ModuleContext) string {
-	implName := proptools.String(module.properties.Lib_name)
-	if apexInfo, _ := android.ModuleProvider(ctx, android.ApexInfoProvider); !apexInfo.IsForPlatform() {
-		// TODO(b/146468504): ApexVariationName() is only a soong module name, not apex name.
-		// In most cases, this works fine. But when apex_name is set or override_apex is used
-		// this can be wrong.
-		return fmt.Sprintf("/apex/%s/javalib/%s.jar", apexInfo.BaseApexName, implName)
-	}
-	partition := "system"
-	if module.SocSpecific() {
-		partition = "vendor"
-	} else if module.DeviceSpecific() {
-		partition = "odm"
-	} else if module.ProductSpecific() {
-		partition = "product"
-	} else if module.SystemExtSpecific() {
-		partition = "system_ext"
-	}
-	return "/" + partition + "/framework/" + implName + ".jar"
-}
-
-func formattedOptionalSdkLevelAttribute(ctx android.ModuleContext, attrName string, value *string) string {
-	if value == nil {
-		return ""
-	}
-	apiLevel, err := android.ApiLevelFromUser(ctx, *value)
-	if err != nil {
-		// attributes in bp files have underscores but in the xml have dashes.
-		ctx.PropertyErrorf(strings.ReplaceAll(attrName, "-", "_"), err.Error())
-		return ""
-	}
-	if apiLevel.IsCurrent() {
-		// passing "current" would always mean a future release, never the current (or the current in
-		// progress) which means some conditions would never be triggered.
-		ctx.PropertyErrorf(strings.ReplaceAll(attrName, "-", "_"),
-			`"current" is not an allowed value for this attribute`)
-		return ""
-	}
-	// "safeValue" is safe because it translates finalized codenames to a string
-	// with their SDK int.
-	safeValue := apiLevel.String()
-	return formattedOptionalAttribute(attrName, &safeValue)
-}
-
-// formats an attribute for the xml permissions file if the value is not null
-// returns empty string otherwise
-func formattedOptionalAttribute(attrName string, value *string) string {
-	if value == nil {
-		return ""
-	}
-	return fmt.Sprintf("        %s=\"%s\"\n", attrName, *value)
-}
-
-func formattedDependenciesAttribute(dependencies []string) string {
-	if dependencies == nil {
-		return ""
-	}
-	return fmt.Sprintf("        dependency=\"%s\"\n", strings.Join(dependencies, ":"))
-}
-
-func (module *sdkLibraryXml) permissionsContents(ctx android.ModuleContext) string {
-	libName := proptools.String(module.properties.Lib_name)
-	libNameAttr := formattedOptionalAttribute("name", &libName)
-	filePath := module.implPath(ctx)
-	filePathAttr := formattedOptionalAttribute("file", &filePath)
-	implicitFromAttr := formattedOptionalSdkLevelAttribute(ctx, "on-bootclasspath-since", module.properties.On_bootclasspath_since)
-	implicitUntilAttr := formattedOptionalSdkLevelAttribute(ctx, "on-bootclasspath-before", module.properties.On_bootclasspath_before)
-	minSdkAttr := formattedOptionalSdkLevelAttribute(ctx, "min-device-sdk", module.properties.Min_device_sdk)
-	maxSdkAttr := formattedOptionalSdkLevelAttribute(ctx, "max-device-sdk", module.properties.Max_device_sdk)
-	dependenciesAttr := formattedDependenciesAttribute(module.properties.Uses_libs_dependencies)
-	// <library> is understood in all android versions whereas <apex-library> is only understood from API T (and ignored before that).
-	// similarly, min_device_sdk is only understood from T. So if a library is using that, we need to use the apex-library to make sure this library is not loaded before T
-	var libraryTag string
-	if module.properties.Min_device_sdk != nil {
-		libraryTag = "    <apex-library\n"
-	} else {
-		libraryTag = "    <library\n"
-	}
-
-	return strings.Join([]string{
-		"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n",
-		"<!-- Copyright (C) 2018 The Android Open Source Project\n",
-		"\n",
-		"    Licensed under the Apache License, Version 2.0 (the \"License\");\n",
-		"    you may not use this file except in compliance with the License.\n",
-		"    You may obtain a copy of the License at\n",
-		"\n",
-		"        http://www.apache.org/licenses/LICENSE-2.0\n",
-		"\n",
-		"    Unless required by applicable law or agreed to in writing, software\n",
-		"    distributed under the License is distributed on an \"AS IS\" BASIS,\n",
-		"    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n",
-		"    See the License for the specific language governing permissions and\n",
-		"    limitations under the License.\n",
-		"-->\n",
-		"<permissions>\n",
-		libraryTag,
-		libNameAttr,
-		filePathAttr,
-		implicitFromAttr,
-		implicitUntilAttr,
-		minSdkAttr,
-		maxSdkAttr,
-		dependenciesAttr,
-		"    />\n",
-		"</permissions>\n",
-	}, "")
-}
-
-func (module *sdkLibraryXml) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-	apexInfo, _ := android.ModuleProvider(ctx, android.ApexInfoProvider)
-	module.hideApexVariantFromMake = !apexInfo.IsForPlatform()
-
-	libName := proptools.String(module.properties.Lib_name)
-	module.selfValidate(ctx)
-	xmlContent := module.permissionsContents(ctx)
-
-	module.outputFilePath = android.PathForModuleOut(ctx, libName+".xml").OutputPath
-	android.WriteFileRuleVerbatim(ctx, module.outputFilePath, xmlContent)
-
-	module.installDirPath = android.PathForModuleInstall(ctx, "etc", module.SubDir())
-	ctx.PackageFile(module.installDirPath, libName+".xml", module.outputFilePath)
-
-	ctx.SetOutputFiles(android.OutputPaths{module.outputFilePath}.Paths(), "")
-}
-
-func (module *sdkLibraryXml) AndroidMkEntries() []android.AndroidMkEntries {
-	if module.hideApexVariantFromMake {
-		return []android.AndroidMkEntries{{
-			Disabled: true,
-		}}
-	}
-
-	return []android.AndroidMkEntries{{
-		Class:      "ETC",
-		OutputFile: android.OptionalPathForPath(module.outputFilePath),
-		ExtraEntries: []android.AndroidMkExtraEntriesFunc{
-			func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
-				entries.SetString("LOCAL_MODULE_TAGS", "optional")
-				entries.SetString("LOCAL_MODULE_PATH", module.installDirPath.String())
-				entries.SetString("LOCAL_INSTALLED_MODULE_STEM", module.outputFilePath.Base())
-			},
-		},
-	}}
-}
-
-func (module *sdkLibraryXml) selfValidate(ctx android.ModuleContext) {
-	module.validateAtLeastTAttributes(ctx)
-	module.validateMinAndMaxDeviceSdk(ctx)
-	module.validateMinMaxDeviceSdkAndModuleMinSdk(ctx)
-	module.validateOnBootclasspathBeforeRequirements(ctx)
-}
-
-func (module *sdkLibraryXml) validateAtLeastTAttributes(ctx android.ModuleContext) {
-	t := android.ApiLevelOrPanic(ctx, "Tiramisu")
-	module.attrAtLeastT(ctx, t, module.properties.Min_device_sdk, "min_device_sdk")
-	module.attrAtLeastT(ctx, t, module.properties.Max_device_sdk, "max_device_sdk")
-	module.attrAtLeastT(ctx, t, module.properties.On_bootclasspath_before, "on_bootclasspath_before")
-	module.attrAtLeastT(ctx, t, module.properties.On_bootclasspath_since, "on_bootclasspath_since")
-}
-
-func (module *sdkLibraryXml) attrAtLeastT(ctx android.ModuleContext, t android.ApiLevel, attr *string, attrName string) {
-	if attr != nil {
-		if level, err := android.ApiLevelFromUser(ctx, *attr); err == nil {
-			// we will inform the user of invalid inputs when we try to write the
-			// permissions xml file so we don't need to do it here
-			if t.GreaterThan(level) {
-				ctx.PropertyErrorf(attrName, "Attribute value needs to be at least T")
-			}
-		}
-	}
-}
-
-func (module *sdkLibraryXml) validateMinAndMaxDeviceSdk(ctx android.ModuleContext) {
-	if module.properties.Min_device_sdk != nil && module.properties.Max_device_sdk != nil {
-		min, minErr := android.ApiLevelFromUser(ctx, *module.properties.Min_device_sdk)
-		max, maxErr := android.ApiLevelFromUser(ctx, *module.properties.Max_device_sdk)
-		if minErr == nil && maxErr == nil {
-			// we will inform the user of invalid inputs when we try to write the
-			// permissions xml file so we don't need to do it here
-			if min.GreaterThan(max) {
-				ctx.ModuleErrorf("min_device_sdk can't be greater than max_device_sdk")
-			}
-		}
-	}
-}
-
-func (module *sdkLibraryXml) validateMinMaxDeviceSdkAndModuleMinSdk(ctx android.ModuleContext) {
-	moduleMinApi := android.ApiLevelOrPanic(ctx, *module.properties.Sdk_library_min_api_level)
-	if module.properties.Min_device_sdk != nil {
-		api, err := android.ApiLevelFromUser(ctx, *module.properties.Min_device_sdk)
-		if err == nil {
-			if moduleMinApi.GreaterThan(api) {
-				ctx.PropertyErrorf("min_device_sdk", "Can't be less than module's min sdk (%s)", moduleMinApi)
-			}
-		}
-	}
-	if module.properties.Max_device_sdk != nil {
-		api, err := android.ApiLevelFromUser(ctx, *module.properties.Max_device_sdk)
-		if err == nil {
-			if moduleMinApi.GreaterThan(api) {
-				ctx.PropertyErrorf("max_device_sdk", "Can't be less than module's min sdk (%s)", moduleMinApi)
-			}
-		}
-	}
-}
-
-func (module *sdkLibraryXml) validateOnBootclasspathBeforeRequirements(ctx android.ModuleContext) {
-	moduleMinApi := android.ApiLevelOrPanic(ctx, *module.properties.Sdk_library_min_api_level)
-	if module.properties.On_bootclasspath_before != nil {
-		t := android.ApiLevelOrPanic(ctx, "Tiramisu")
-		// if we use the attribute, then we need to do this validation
-		if moduleMinApi.LessThan(t) {
-			// if minAPi is < T, then we need to have min_device_sdk (which only accepts T+)
-			if module.properties.Min_device_sdk == nil {
-				ctx.PropertyErrorf("on_bootclasspath_before", "Using this property requires that the module's min_sdk_version or the shared library's min_device_sdk is at least T")
-			}
-		}
-	}
-}
-
 type sdkLibrarySdkMemberType struct {
 	android.SdkMemberTypeBase
 }
diff --git a/java/sdk_library_external.go b/java/sdk_library_external.go
deleted file mode 100644
index 4f83981..0000000
--- a/java/sdk_library_external.go
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright 2020 Google Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package java
-
-import (
-	"android/soong/android"
-)
-
-type partitionGroup int
-
-// Representation of partition group for checking inter-partition library dependencies.
-// Between system and system_ext, there are no restrictions of dependencies,
-// so we can treat these partitions as the same in terms of inter-partition dependency.
-// Same policy is applied between vendor and odm partiton.
-const (
-	partitionGroupNone partitionGroup = iota
-	// group for system, and system_ext partition
-	partitionGroupSystem
-	// group for vendor and odm partition
-	partitionGroupVendor
-	// product partition
-	partitionGroupProduct
-)
-
-func (g partitionGroup) String() string {
-	switch g {
-	case partitionGroupSystem:
-		return "system"
-	case partitionGroupVendor:
-		return "vendor"
-	case partitionGroupProduct:
-		return "product"
-	}
-
-	return ""
-}
-
-// Get partition group of java module that can be used at inter-partition dependency check.
-// We currently have three groups
-//
-//	(system, system_ext) => system partition group
-//	(vendor, odm) => vendor partition group
-//	(product) => product partition group
-func (j *Module) partitionGroup(ctx android.EarlyModuleContext) partitionGroup {
-	// system and system_ext partition can be treated as the same in terms of inter-partition dependency.
-	if j.Platform() || j.SystemExtSpecific() {
-		return partitionGroupSystem
-	}
-
-	// vendor and odm partition can be treated as the same in terms of inter-partition dependency.
-	if j.SocSpecific() || j.DeviceSpecific() {
-		return partitionGroupVendor
-	}
-
-	// product partition is independent.
-	if j.ProductSpecific() {
-		return partitionGroupProduct
-	}
-
-	panic("Cannot determine partition type")
-}
-
-func (j *Module) allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleContext) bool {
-	return inList(j.Name(), ctx.Config().InterPartitionJavaLibraryAllowList())
-}
-
-func (j *Module) syspropWithPublicStubs() bool {
-	return j.deviceProperties.SyspropPublicStub != ""
-}
-
-type javaSdkLibraryEnforceContext interface {
-	Name() string
-	allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleContext) bool
-	partitionGroup(ctx android.EarlyModuleContext) partitionGroup
-	syspropWithPublicStubs() bool
-}
-
-var _ javaSdkLibraryEnforceContext = (*Module)(nil)
-
-func (j *Module) checkPartitionsForJavaDependency(ctx android.EarlyModuleContext, propName string, dep javaSdkLibraryEnforceContext) {
-	if dep.allowListedInterPartitionJavaLibrary(ctx) {
-		return
-	}
-
-	if dep.syspropWithPublicStubs() {
-		return
-	}
-
-	// If product interface is not enforced, skip check between system and product partition.
-	// But still need to check between product and vendor partition because product interface flag
-	// just represents enforcement between product and system, and vendor interface enforcement
-	// that is enforced here by precondition is representing enforcement between vendor and other partitions.
-	if !ctx.Config().EnforceProductPartitionInterface() {
-		productToSystem := j.partitionGroup(ctx) == partitionGroupProduct && dep.partitionGroup(ctx) == partitionGroupSystem
-		systemToProduct := j.partitionGroup(ctx) == partitionGroupSystem && dep.partitionGroup(ctx) == partitionGroupProduct
-
-		if productToSystem || systemToProduct {
-			return
-		}
-	}
-
-	// If module and dependency library is inter-partition
-	if j.partitionGroup(ctx) != dep.partitionGroup(ctx) {
-		errorFormat := "dependency on java_library (%q) is not allowed across the partitions (%s -> %s), use java_sdk_library instead"
-		ctx.PropertyErrorf(propName, errorFormat, dep.Name(), j.partitionGroup(ctx), dep.partitionGroup(ctx))
-	}
-}
diff --git a/java/sdk_library_internal.go b/java/sdk_library_internal.go
new file mode 100644
index 0000000..6f24902
--- /dev/null
+++ b/java/sdk_library_internal.go
@@ -0,0 +1,1013 @@
+// Copyright 2024 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package java
+
+import (
+	"android/soong/android"
+	"android/soong/etc"
+	"fmt"
+	"path"
+	"strings"
+
+	"github.com/google/blueprint/proptools"
+)
+
+// ---------------------------------------------------------------------------------------------
+// Naming scheme of the submodules generated by java_sdk_library and java_sdk_library_import
+// ---------------------------------------------------------------------------------------------
+
+const (
+	sdkXmlFileSuffix = ".xml"
+	implLibSuffix    = ".impl"
+)
+
+// Module name of the runtime implementation library
+func (c *commonToSdkLibraryAndImport) implLibraryModuleName() string {
+	return c.module.RootLibraryName() + implLibSuffix
+}
+
+// Module name of the XML file for the lib
+func (c *commonToSdkLibraryAndImport) xmlPermissionsModuleName() string {
+	return c.module.RootLibraryName() + sdkXmlFileSuffix
+}
+
+// Name of the java_library module that compiles the stubs source.
+func (c *commonToSdkLibraryAndImport) stubsLibraryModuleName(apiScope *apiScope) string {
+	baseName := c.module.RootLibraryName()
+	return apiScope.stubsLibraryModuleName(baseName)
+}
+
+// Name of the java_library module that compiles the exportable stubs source.
+func (c *commonToSdkLibraryAndImport) exportableStubsLibraryModuleName(apiScope *apiScope) string {
+	baseName := c.module.RootLibraryName()
+	return apiScope.exportableStubsLibraryModuleName(baseName)
+}
+
+// Name of the droidstubs module that generates the stubs source and may also
+// generate/check the API.
+func (c *commonToSdkLibraryAndImport) droidstubsModuleName(apiScope *apiScope) string {
+	baseName := c.module.RootLibraryName()
+	return apiScope.stubsSourceModuleName(baseName)
+}
+
+// Name of the java_api_library module that generates the from-text stubs source
+// and compiles to a jar file.
+func (c *commonToSdkLibraryAndImport) fromTextStubsLibraryModuleName(apiScope *apiScope) string {
+	baseName := c.module.RootLibraryName()
+	return apiScope.apiLibraryModuleName(baseName)
+}
+
+// Name of the java_library module that compiles the stubs
+// generated from source Java files.
+func (c *commonToSdkLibraryAndImport) fromSourceStubsLibraryModuleName(apiScope *apiScope) string {
+	baseName := c.module.RootLibraryName()
+	return apiScope.sourceStubsLibraryModuleName(baseName)
+}
+
+// Name of the java_library module that compiles the exportable stubs
+// generated from source Java files.
+func (c *commonToSdkLibraryAndImport) exportableFromSourceStubsLibraryModuleName(apiScope *apiScope) string {
+	baseName := c.module.RootLibraryName()
+	return apiScope.exportableSourceStubsLibraryModuleName(baseName)
+}
+
+// ---------------------------------------------------------------------------------------------
+// Build rules of the submodules generated by java_sdk_library.
+// java_sdk_library "framework-foo" generates the following submodules:
+//
+// - "framework-foo.impl" (type: [Library]): the implementation library, which generates the
+//		compilation outputs that include the implementation details and the private apis
+//		(i.e. class/methods that are annotated @hide).
+//
+// - "framework-foo.stubs.source.<[apiScope.name]>" (type: [Droidstubs]): droidstubs module that
+//		generates the stubs and the api files for the given api scope.
+//
+// - "framework-foo.stubs.<[apiScope.name]>" (type: [Library]): stub library module that
+//		provides the compilation output of the stubs to the reverse dependencies. The module
+//		itself does not perform any compilation actions; the module statically depends on one of
+//		the from-source stub module or the from-text stub configuration based on the build
+// 		configuration.
+//
+// - "framework-foo.stubs.<[apiScope.name]>.from-source" (type: [Library]): stub library module
+//		that compiles the stubs generated by the droidstubs submodule. This module is a static
+//		dependency of the stub library module when
+//		[android/soong/android/config.BuildFromTextStub()] is false.
+//
+// - "framework-foo.stubs.<[apiScope.name]>.from-text" (type: [ApiLibrary]): api library module
+//		that generates and compiles the stubs from the api files checked in the tree instead of
+//		the source Java files (e.g. *-current.txt files). This module is a static dependency of
+//		the stub library module when [android/soong/android/config.BuildFromTextStub()] is true.
+//
+// - "framework-foo.stubs.exportable.<[apiScope.name]>" (type: [Library]): stub library module
+//		that provides the "exportable" stubs. "exportable" stubs are the stubs that do not
+//		include in-development flagged apis. This module is only used for SDK builds to generate
+//		the SDK artifacts, and not purposed for consumption for other modules.
+//
+// - "framework-foo.stubs.exportable.<[apiScope.name]>.from-source" (type: [Library]): stub
+//		library module that compiles the "exportable" stubs generated by the droidstubs
+//		submodule. This module is always a static dependency of the "exportable" stub library
+//		module given that from-text stubs cannot be used for SDK builds as it does not contain
+//		documentations.
+//
+// - "framework-foo.xml" (type: [sdkLibraryXml]): xml library that generates the permission xml
+//		file, which allows [SdkLibrary] to be used with <uses-permission> tag in the
+//		AndroidManifest.xml files.
+// ---------------------------------------------------------------------------------------------
+
+// Creates the implementation [Library] with ".impl" suffix.
+func (module *SdkLibrary) createImplLibrary(mctx android.DefaultableHookContext) {
+	visibility := childModuleVisibility(module.sdkLibraryProperties.Impl_library_visibility)
+
+	staticLibs := module.properties.Static_libs.Clone()
+	staticLibs.AppendSimpleValue(module.sdkLibraryProperties.Impl_only_static_libs)
+	props := struct {
+		Name           *string
+		Enabled        proptools.Configurable[bool]
+		Visibility     []string
+		Libs           []string
+		Static_libs    proptools.Configurable[[]string]
+		Apex_available []string
+		Stem           *string
+	}{
+		Name:       proptools.StringPtr(module.implLibraryModuleName()),
+		Enabled:    module.EnabledProperty(),
+		Visibility: visibility,
+
+		Libs: append(module.properties.Libs, module.sdkLibraryProperties.Impl_only_libs...),
+
+		Static_libs: staticLibs,
+		// Pass the apex_available settings down so that the impl library can be statically
+		// embedded within a library that is added to an APEX. Needed for updatable-media.
+		Apex_available: module.ApexAvailable(),
+
+		Stem: proptools.StringPtr(module.Name()),
+	}
+
+	properties := []interface{}{
+		&module.properties,
+		&module.protoProperties,
+		&module.deviceProperties,
+		&module.dexProperties,
+		&module.dexpreoptProperties,
+		&module.linter.properties,
+		&module.overridableProperties,
+		&props,
+		module.sdkComponentPropertiesForChildLibrary(),
+	}
+	mctx.CreateModule(LibraryFactory, properties...)
+}
+
+// Creates the [Droidstubs] module with ".stubs.source.<[apiScope.name]>" that creates stubs
+// source files from the given full source files and also updates and checks the API
+// specification files (i.e. "*-current.txt", "*-removed.txt" files).
+func (module *SdkLibrary) createDroidstubs(mctx android.DefaultableHookContext, apiScope *apiScope, name string, scopeSpecificDroidstubsArgs []string) {
+	props := struct {
+		Name                             *string
+		Enabled                          proptools.Configurable[bool]
+		Visibility                       []string
+		Srcs                             []string
+		Installable                      *bool
+		Sdk_version                      *string
+		Api_surface                      *string
+		System_modules                   *string
+		Libs                             proptools.Configurable[[]string]
+		Output_javadoc_comments          *bool
+		Arg_files                        []string
+		Args                             *string
+		Java_version                     *string
+		Annotations_enabled              *bool
+		Merge_annotations_dirs           []string
+		Merge_inclusion_annotations_dirs []string
+		Generate_stubs                   *bool
+		Previous_api                     *string
+		Aconfig_declarations             []string
+		Check_api                        struct {
+			Current       ApiToCheck
+			Last_released ApiToCheck
+
+			Api_lint struct {
+				Enabled       *bool
+				New_since     *string
+				Baseline_file *string
+			}
+		}
+		Aidl struct {
+			Include_dirs       []string
+			Local_include_dirs []string
+		}
+		Dists []android.Dist
+	}{}
+
+	// The stubs source processing uses the same compile time classpath when extracting the
+	// API from the implementation library as it does when compiling it. i.e. the same
+	// * sdk version
+	// * system_modules
+	// * libs (static_libs/libs)
+
+	props.Name = proptools.StringPtr(name)
+	props.Enabled = module.EnabledProperty()
+	props.Visibility = childModuleVisibility(module.sdkLibraryProperties.Stubs_source_visibility)
+	props.Srcs = append(props.Srcs, module.properties.Srcs...)
+	props.Srcs = append(props.Srcs, module.sdkLibraryProperties.Api_srcs...)
+	props.Sdk_version = module.deviceProperties.Sdk_version
+	props.Api_surface = &apiScope.name
+	props.System_modules = module.deviceProperties.System_modules
+	props.Installable = proptools.BoolPtr(false)
+	// A droiddoc module has only one Libs property and doesn't distinguish between
+	// shared libs and static libs. So we need to add both of these libs to Libs property.
+	props.Libs = proptools.NewConfigurable[[]string](nil, nil)
+	props.Libs.AppendSimpleValue(module.properties.Libs)
+	props.Libs.Append(module.properties.Static_libs)
+	props.Libs.AppendSimpleValue(module.sdkLibraryProperties.Stub_only_libs)
+	props.Libs.AppendSimpleValue(module.scopeToProperties[apiScope].Libs)
+	props.Aidl.Include_dirs = module.deviceProperties.Aidl.Include_dirs
+	props.Aidl.Local_include_dirs = module.deviceProperties.Aidl.Local_include_dirs
+	props.Java_version = module.properties.Java_version
+
+	props.Annotations_enabled = module.sdkLibraryProperties.Annotations_enabled
+	props.Merge_annotations_dirs = module.sdkLibraryProperties.Merge_annotations_dirs
+	props.Merge_inclusion_annotations_dirs = module.sdkLibraryProperties.Merge_inclusion_annotations_dirs
+	props.Aconfig_declarations = module.sdkLibraryProperties.Aconfig_declarations
+
+	droidstubsArgs := []string{}
+	if len(module.sdkLibraryProperties.Api_packages) != 0 {
+		droidstubsArgs = append(droidstubsArgs, "--stub-packages "+strings.Join(module.sdkLibraryProperties.Api_packages, ":"))
+	}
+	droidstubsArgs = append(droidstubsArgs, module.sdkLibraryProperties.Droiddoc_options...)
+	disabledWarnings := []string{"HiddenSuperclass"}
+	if proptools.BoolDefault(module.sdkLibraryProperties.Api_lint.Legacy_errors_allowed, true) {
+		disabledWarnings = append(disabledWarnings,
+			"BroadcastBehavior",
+			"DeprecationMismatch",
+			"MissingPermission",
+			"SdkConstant",
+			"Todo",
+		)
+	}
+	droidstubsArgs = append(droidstubsArgs, android.JoinWithPrefix(disabledWarnings, "--hide "))
+
+	// Output Javadoc comments for public scope.
+	if apiScope == apiScopePublic {
+		props.Output_javadoc_comments = proptools.BoolPtr(true)
+	}
+
+	// Add in scope specific arguments.
+	droidstubsArgs = append(droidstubsArgs, scopeSpecificDroidstubsArgs...)
+	props.Arg_files = module.sdkLibraryProperties.Droiddoc_option_files
+	props.Args = proptools.StringPtr(strings.Join(droidstubsArgs, " "))
+
+	// List of APIs identified from the provided source files are created. They are later
+	// compared against to the not-yet-released (a.k.a current) list of APIs and to the
+	// last-released (a.k.a numbered) list of API.
+	currentApiFileName := apiScope.apiFilePrefix + "current.txt"
+	removedApiFileName := apiScope.apiFilePrefix + "removed.txt"
+	apiDir := module.getApiDir()
+	currentApiFileName = path.Join(apiDir, currentApiFileName)
+	removedApiFileName = path.Join(apiDir, removedApiFileName)
+
+	// check against the not-yet-release API
+	props.Check_api.Current.Api_file = proptools.StringPtr(currentApiFileName)
+	props.Check_api.Current.Removed_api_file = proptools.StringPtr(removedApiFileName)
+
+	if module.compareAgainstLatestApi(apiScope) {
+		// check against the latest released API
+		latestApiFilegroupName := proptools.StringPtr(module.latestApiFilegroupName(apiScope))
+		props.Previous_api = latestApiFilegroupName
+		props.Check_api.Last_released.Api_file = latestApiFilegroupName
+		props.Check_api.Last_released.Removed_api_file = proptools.StringPtr(
+			module.latestRemovedApiFilegroupName(apiScope))
+		props.Check_api.Last_released.Baseline_file = proptools.StringPtr(
+			module.latestIncompatibilitiesFilegroupName(apiScope))
+
+		if proptools.Bool(module.sdkLibraryProperties.Api_lint.Enabled) {
+			// Enable api lint.
+			props.Check_api.Api_lint.Enabled = proptools.BoolPtr(true)
+			props.Check_api.Api_lint.New_since = latestApiFilegroupName
+
+			// If it exists then pass a lint-baseline.txt through to droidstubs.
+			baselinePath := path.Join(apiDir, apiScope.apiFilePrefix+"lint-baseline.txt")
+			baselinePathRelativeToRoot := path.Join(mctx.ModuleDir(), baselinePath)
+			paths, err := mctx.GlobWithDeps(baselinePathRelativeToRoot, nil)
+			if err != nil {
+				mctx.ModuleErrorf("error checking for presence of %s: %s", baselinePathRelativeToRoot, err)
+			}
+			if len(paths) == 1 {
+				props.Check_api.Api_lint.Baseline_file = proptools.StringPtr(baselinePath)
+			} else if len(paths) != 0 {
+				mctx.ModuleErrorf("error checking for presence of %s: expected one path, found: %v", baselinePathRelativeToRoot, paths)
+			}
+		}
+	}
+
+	if !Bool(module.sdkLibraryProperties.No_dist) {
+		// Dist the api txt and removed api txt artifacts for sdk builds.
+		distDir := proptools.StringPtr(path.Join(module.apiDistPath(apiScope), "api"))
+		stubsTypeTagPrefix := ""
+		if mctx.Config().ReleaseHiddenApiExportableStubs() {
+			stubsTypeTagPrefix = ".exportable"
+		}
+		for _, p := range []struct {
+			tag     string
+			pattern string
+		}{
+			// "exportable" api files are copied to the dist directory instead of the
+			// "everything" api files when "RELEASE_HIDDEN_API_EXPORTABLE_STUBS" build flag
+			// is set. Otherwise, the "everything" api files are copied to the dist directory.
+			{tag: "%s.api.txt", pattern: "%s.txt"},
+			{tag: "%s.removed-api.txt", pattern: "%s-removed.txt"},
+		} {
+			props.Dists = append(props.Dists, android.Dist{
+				Targets: []string{"sdk", "win_sdk"},
+				Dir:     distDir,
+				Dest:    proptools.StringPtr(fmt.Sprintf(p.pattern, module.distStem())),
+				Tag:     proptools.StringPtr(fmt.Sprintf(p.tag, stubsTypeTagPrefix)),
+			})
+		}
+	}
+
+	mctx.CreateModule(DroidstubsFactory, &props, module.sdkComponentPropertiesForChildLibrary()).(*Droidstubs).CallHookIfAvailable(mctx)
+}
+
+type libraryProperties struct {
+	Name           *string
+	Enabled        proptools.Configurable[bool]
+	Visibility     []string
+	Srcs           []string
+	Installable    *bool
+	Sdk_version    *string
+	System_modules *string
+	Patch_module   *string
+	Libs           []string
+	Static_libs    []string
+	Compile_dex    *bool
+	Java_version   *string
+	Openjdk9       struct {
+		Srcs       []string
+		Javacflags []string
+	}
+	Dist struct {
+		Targets []string
+		Dest    *string
+		Dir     *string
+		Tag     *string
+	}
+	Is_stubs_module       *bool
+	Stub_contributing_api *string
+}
+
+func (module *SdkLibrary) stubsLibraryProps(mctx android.DefaultableHookContext, apiScope *apiScope) libraryProperties {
+	props := libraryProperties{}
+	props.Enabled = module.EnabledProperty()
+	props.Visibility = []string{"//visibility:override", "//visibility:private"}
+	// sources are generated from the droiddoc
+	sdkVersion := module.sdkVersionForStubsLibrary(mctx, apiScope)
+	props.Sdk_version = proptools.StringPtr(sdkVersion)
+	props.System_modules = module.deviceProperties.System_modules
+	props.Patch_module = module.properties.Patch_module
+	props.Installable = proptools.BoolPtr(false)
+	props.Libs = module.sdkLibraryProperties.Stub_only_libs
+	props.Libs = append(props.Libs, module.scopeToProperties[apiScope].Libs...)
+	props.Static_libs = module.sdkLibraryProperties.Stub_only_static_libs
+	// The stub-annotations library contains special versions of the annotations
+	// with CLASS retention policy, so that they're kept.
+	if proptools.Bool(module.sdkLibraryProperties.Annotations_enabled) {
+		props.Libs = append(props.Libs, "stub-annotations")
+	}
+	props.Openjdk9.Srcs = module.properties.Openjdk9.Srcs
+	props.Openjdk9.Javacflags = module.properties.Openjdk9.Javacflags
+	// We compile the stubs for 1.8 in line with the main android.jar stubs, and potential
+	// interop with older developer tools that don't support 1.9.
+	props.Java_version = proptools.StringPtr("1.8")
+	props.Is_stubs_module = proptools.BoolPtr(true)
+	props.Stub_contributing_api = proptools.StringPtr(apiScope.kind.String())
+
+	return props
+}
+
+// Creates the from-source stub [Library] with ".stubs.<[apiScope.name]>.from-source" suffix.
+func (module *SdkLibrary) createFromSourceStubsLibrary(mctx android.DefaultableHookContext, apiScope *apiScope) {
+
+	props := module.stubsLibraryProps(mctx, apiScope)
+	props.Name = proptools.StringPtr(module.fromSourceStubsLibraryModuleName(apiScope))
+	props.Srcs = []string{":" + module.droidstubsModuleName(apiScope)}
+
+	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+// Creates the "exportable" from-source stub [Library] with
+// ".stubs.exportable.<[apiScope.name]>" suffix.
+func (module *SdkLibrary) createExportableFromSourceStubsLibrary(mctx android.DefaultableHookContext, apiScope *apiScope) {
+	props := module.stubsLibraryProps(mctx, apiScope)
+	props.Name = proptools.StringPtr(module.exportableFromSourceStubsLibraryModuleName(apiScope))
+	props.Srcs = []string{":" + module.droidstubsModuleName(apiScope) + "{.exportable}"}
+
+	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+// Creates the from-text stub [ApiLibrary] with ".stubs.<[apiScope.name]>.from-text" suffix.
+func (module *SdkLibrary) createApiLibrary(mctx android.DefaultableHookContext, apiScope *apiScope) {
+	props := struct {
+		Name              *string
+		Enabled           proptools.Configurable[bool]
+		Visibility        []string
+		Api_contributions []string
+		Libs              proptools.Configurable[[]string]
+		Static_libs       []string
+		System_modules    *string
+		Enable_validation *bool
+		Stubs_type        *string
+		Sdk_version       *string
+		Previous_api      *string
+	}{}
+
+	props.Name = proptools.StringPtr(module.fromTextStubsLibraryModuleName(apiScope))
+	props.Enabled = module.EnabledProperty()
+	props.Visibility = []string{"//visibility:override", "//visibility:private"}
+
+	apiContributions := []string{}
+
+	// Api surfaces are not independent of each other, but have subset relationships,
+	// and so does the api files. To generate from-text stubs for api surfaces other than public,
+	// all subset api domains' api_contriubtions must be added as well.
+	scope := apiScope
+	for scope != nil {
+		apiContributions = append(apiContributions, module.droidstubsModuleName(scope)+".api.contribution")
+		scope = scope.extends
+	}
+	if apiScope == apiScopePublic {
+		additionalApiContribution := module.apiLibraryAdditionalApiContribution()
+		if additionalApiContribution != "" {
+			apiContributions = append(apiContributions, additionalApiContribution)
+		}
+	}
+
+	props.Api_contributions = apiContributions
+
+	// Ensure that stub-annotations is added to the classpath before any other libs
+	props.Libs = proptools.NewConfigurable[[]string](nil, nil)
+	props.Libs.AppendSimpleValue([]string{"stub-annotations"})
+	props.Libs.AppendSimpleValue(module.properties.Libs)
+	props.Libs.Append(module.properties.Static_libs)
+	props.Libs.AppendSimpleValue(module.sdkLibraryProperties.Stub_only_libs)
+	props.Libs.AppendSimpleValue(module.scopeToProperties[apiScope].Libs)
+	props.Static_libs = module.sdkLibraryProperties.Stub_only_static_libs
+
+	props.System_modules = module.deviceProperties.System_modules
+	props.Enable_validation = proptools.BoolPtr(true)
+	props.Stubs_type = proptools.StringPtr("everything")
+
+	if module.deviceProperties.Sdk_version != nil {
+		props.Sdk_version = module.deviceProperties.Sdk_version
+	}
+
+	if module.compareAgainstLatestApi(apiScope) {
+		// check against the latest released API
+		latestApiFilegroupName := proptools.StringPtr(module.latestApiFilegroupName(apiScope))
+		props.Previous_api = latestApiFilegroupName
+	}
+
+	mctx.CreateModule(ApiLibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+func (module *SdkLibrary) topLevelStubsLibraryProps(mctx android.DefaultableHookContext, apiScope *apiScope, doDist bool) libraryProperties {
+	props := libraryProperties{}
+
+	props.Enabled = module.EnabledProperty()
+	props.Visibility = childModuleVisibility(module.sdkLibraryProperties.Stubs_library_visibility)
+	sdkVersion := module.sdkVersionForStubsLibrary(mctx, apiScope)
+	props.Sdk_version = proptools.StringPtr(sdkVersion)
+
+	props.System_modules = module.deviceProperties.System_modules
+
+	// The imports need to be compiled to dex if the java_sdk_library requests it.
+	compileDex := module.dexProperties.Compile_dex
+	if module.stubLibrariesCompiledForDex() {
+		compileDex = proptools.BoolPtr(true)
+	}
+	props.Compile_dex = compileDex
+
+	props.Stub_contributing_api = proptools.StringPtr(apiScope.kind.String())
+
+	if !Bool(module.sdkLibraryProperties.No_dist) && doDist {
+		props.Dist.Targets = []string{"sdk", "win_sdk"}
+		props.Dist.Dest = proptools.StringPtr(fmt.Sprintf("%v.jar", module.distStem()))
+		props.Dist.Dir = proptools.StringPtr(module.apiDistPath(apiScope))
+		props.Dist.Tag = proptools.StringPtr(".jar")
+	}
+	props.Is_stubs_module = proptools.BoolPtr(true)
+
+	return props
+}
+
+// Creates the stub [Library] with ".stubs.<[apiScope.name]>" suffix.
+func (module *SdkLibrary) createTopLevelStubsLibrary(
+	mctx android.DefaultableHookContext, apiScope *apiScope) {
+
+	// Dist the "everything" stubs when the RELEASE_HIDDEN_API_EXPORTABLE_STUBS build flag is false
+	doDist := !mctx.Config().ReleaseHiddenApiExportableStubs()
+	props := module.topLevelStubsLibraryProps(mctx, apiScope, doDist)
+	props.Name = proptools.StringPtr(module.stubsLibraryModuleName(apiScope))
+
+	// Add the stub compiling java_library/java_api_library as static lib based on build config
+	staticLib := module.fromSourceStubsLibraryModuleName(apiScope)
+	if mctx.Config().BuildFromTextStub() && module.ModuleBuildFromTextStubs() {
+		staticLib = module.fromTextStubsLibraryModuleName(apiScope)
+	}
+	props.Static_libs = append(props.Static_libs, staticLib)
+
+	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+// Creates the "exportable" stub [Library] with ".stubs.exportable.<[apiScope.name]>" suffix.
+func (module *SdkLibrary) createTopLevelExportableStubsLibrary(
+	mctx android.DefaultableHookContext, apiScope *apiScope) {
+
+	// Dist the "exportable" stubs when the RELEASE_HIDDEN_API_EXPORTABLE_STUBS build flag is true
+	doDist := mctx.Config().ReleaseHiddenApiExportableStubs()
+	props := module.topLevelStubsLibraryProps(mctx, apiScope, doDist)
+	props.Name = proptools.StringPtr(module.exportableStubsLibraryModuleName(apiScope))
+
+	staticLib := module.exportableFromSourceStubsLibraryModuleName(apiScope)
+	props.Static_libs = append(props.Static_libs, staticLib)
+
+	mctx.CreateModule(LibraryFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+// Creates the [sdkLibraryXml] with ".xml" suffix.
+func (module *SdkLibrary) createXmlFile(mctx android.DefaultableHookContext) {
+	moduleMinApiLevel := module.Library.MinSdkVersion(mctx)
+	var moduleMinApiLevelStr = moduleMinApiLevel.String()
+	if moduleMinApiLevel == android.NoneApiLevel {
+		moduleMinApiLevelStr = "current"
+	}
+	props := struct {
+		Name                      *string
+		Enabled                   proptools.Configurable[bool]
+		Lib_name                  *string
+		Apex_available            []string
+		On_bootclasspath_since    *string
+		On_bootclasspath_before   *string
+		Min_device_sdk            *string
+		Max_device_sdk            *string
+		Sdk_library_min_api_level *string
+		Uses_libs_dependencies    []string
+	}{
+		Name:                      proptools.StringPtr(module.xmlPermissionsModuleName()),
+		Enabled:                   module.EnabledProperty(),
+		Lib_name:                  proptools.StringPtr(module.BaseModuleName()),
+		Apex_available:            module.ApexProperties.Apex_available,
+		On_bootclasspath_since:    module.commonSdkLibraryProperties.On_bootclasspath_since,
+		On_bootclasspath_before:   module.commonSdkLibraryProperties.On_bootclasspath_before,
+		Min_device_sdk:            module.commonSdkLibraryProperties.Min_device_sdk,
+		Max_device_sdk:            module.commonSdkLibraryProperties.Max_device_sdk,
+		Sdk_library_min_api_level: &moduleMinApiLevelStr,
+		Uses_libs_dependencies:    module.usesLibraryProperties.Uses_libs,
+	}
+
+	mctx.CreateModule(sdkLibraryXmlFactory, &props)
+}
+
+// ---------------------------------------------------------------------------------------------
+// Build rules of the submodules generated by java_sdk_library_import.
+// Note that the java_sdk_library_import module does not generate the implementation library.
+// Instead, it will create a dependency to the source implemenetation library if one exists.
+// java_sdk_library_import "framework-foo" generates the following submodules:
+//
+// - "framework-foo.stubs.<[apiScope.name]>" (type: [Import]): prebuilt stub library module that
+//		provides the stub jar file checked in the tree.
+//
+// - "framework-foo.stubs.source.<[apiScope.name]>" (type: [PrebuiltStubsSources]): prebuilt
+//		droidstubs module that provides the stub source jar file checked in the tree.
+//
+// - "framework-foo.stubs.source.<[apiScope.name]>.api.contribution"
+//		(type [JavaApiContributionImport]): prebuilt java_api_contribution module that provides
+//		the prebuilt api file for previously released from-text stub generation.
+// ---------------------------------------------------------------------------------------------
+
+// Creates the prebuilt stub [Import] with ".stubs.<[apiScope.name]>" suffix.
+func (module *SdkLibraryImport) createJavaImportForStubs(mctx android.DefaultableHookContext, apiScope *apiScope, scopeProperties *sdkLibraryScopeProperties) {
+	// Creates a java import for the jar with ".stubs" suffix
+	props := struct {
+		Name                             *string
+		Source_module_name               *string
+		Created_by_java_sdk_library_name *string
+		Sdk_version                      *string
+		Libs                             []string
+		Jars                             []string
+		Compile_dex                      *bool
+		Is_stubs_module                  *bool
+
+		android.UserSuppliedPrebuiltProperties
+	}{}
+	props.Name = proptools.StringPtr(module.stubsLibraryModuleName(apiScope))
+	props.Source_module_name = proptools.StringPtr(apiScope.stubsLibraryModuleName(module.BaseModuleName()))
+	props.Created_by_java_sdk_library_name = proptools.StringPtr(module.RootLibraryName())
+	props.Sdk_version = scopeProperties.Sdk_version
+	// Prepend any of the libs from the legacy public properties to the libs for each of the
+	// scopes to avoid having to duplicate them in each scope.
+	props.Libs = append(module.properties.Libs, scopeProperties.Libs...)
+	props.Jars = scopeProperties.Jars
+
+	// The imports are preferred if the java_sdk_library_import is preferred.
+	props.CopyUserSuppliedPropertiesFromPrebuilt(&module.prebuilt)
+
+	// The imports need to be compiled to dex if the java_sdk_library_import requests it.
+	compileDex := module.properties.Compile_dex
+	if module.stubLibrariesCompiledForDex() {
+		compileDex = proptools.BoolPtr(true)
+	}
+	props.Compile_dex = compileDex
+	props.Is_stubs_module = proptools.BoolPtr(true)
+
+	mctx.CreateModule(ImportFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+func (module *SdkLibraryImport) createPrebuiltStubsSources(mctx android.DefaultableHookContext, apiScope *apiScope, scopeProperties *sdkLibraryScopeProperties) {
+	props := struct {
+		Name                             *string
+		Source_module_name               *string
+		Created_by_java_sdk_library_name *string
+		Srcs                             []string
+
+		android.UserSuppliedPrebuiltProperties
+	}{}
+	props.Name = proptools.StringPtr(module.droidstubsModuleName(apiScope))
+	props.Source_module_name = proptools.StringPtr(apiScope.stubsSourceModuleName(module.BaseModuleName()))
+	props.Created_by_java_sdk_library_name = proptools.StringPtr(module.RootLibraryName())
+	props.Srcs = scopeProperties.Stub_srcs
+
+	// The stubs source is preferred if the java_sdk_library_import is preferred.
+	props.CopyUserSuppliedPropertiesFromPrebuilt(&module.prebuilt)
+
+	mctx.CreateModule(PrebuiltStubsSourcesFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+// Creates the prebuilt api contribution [JavaApiContributionImport] with
+// ".stubs.source.<[apiScope.name]>.api.contribution" suffix.
+func (module *SdkLibraryImport) createPrebuiltApiContribution(mctx android.DefaultableHookContext, apiScope *apiScope, scopeProperties *sdkLibraryScopeProperties) {
+	api_file := scopeProperties.Current_api
+	api_surface := &apiScope.name
+
+	props := struct {
+		Name                             *string
+		Source_module_name               *string
+		Created_by_java_sdk_library_name *string
+		Api_surface                      *string
+		Api_file                         *string
+		Visibility                       []string
+	}{}
+
+	props.Name = proptools.StringPtr(module.droidstubsModuleName(apiScope) + ".api.contribution")
+	props.Source_module_name = proptools.StringPtr(apiScope.stubsSourceModuleName(module.BaseModuleName()) + ".api.contribution")
+	props.Created_by_java_sdk_library_name = proptools.StringPtr(module.RootLibraryName())
+	props.Api_surface = api_surface
+	props.Api_file = api_file
+	props.Visibility = []string{"//visibility:override", "//visibility:public"}
+
+	mctx.CreateModule(ApiContributionImportFactory, &props, module.sdkComponentPropertiesForChildLibrary())
+}
+
+// ---------------------------------------------------------------------------------------------
+// End of the build rules of the submodules generated by java_sdk_library_import.
+// ---------------------------------------------------------------------------------------------
+
+// Definition of the [sdkLibraryXml] module. The module generates the permissions xml file,
+// so that the apps can specify the java_sdk_library using <uses-permission> tag in the
+// AndroidManifest.xml file.
+type sdkLibraryXml struct {
+	android.ModuleBase
+	android.DefaultableModuleBase
+	android.ApexModuleBase
+
+	properties sdkLibraryXmlProperties
+
+	outputFilePath android.OutputPath
+	installDirPath android.InstallPath
+
+	hideApexVariantFromMake bool
+}
+
+type sdkLibraryXmlProperties struct {
+	// canonical name of the lib
+	Lib_name *string
+
+	// Signals that this shared library is part of the bootclasspath starting
+	// on the version indicated in this attribute.
+	//
+	// This will make platforms at this level and above to ignore
+	// <uses-library> tags with this library name because the library is already
+	// available
+	On_bootclasspath_since *string
+
+	// Signals that this shared library was part of the bootclasspath before
+	// (but not including) the version indicated in this attribute.
+	//
+	// The system will automatically add a <uses-library> tag with this library to
+	// apps that target any SDK less than the version indicated in this attribute.
+	On_bootclasspath_before *string
+
+	// Indicates that PackageManager should ignore this shared library if the
+	// platform is below the version indicated in this attribute.
+	//
+	// This means that the device won't recognise this library as installed.
+	Min_device_sdk *string
+
+	// Indicates that PackageManager should ignore this shared library if the
+	// platform is above the version indicated in this attribute.
+	//
+	// This means that the device won't recognise this library as installed.
+	Max_device_sdk *string
+
+	// The SdkLibrary's min api level as a string
+	//
+	// This value comes from the ApiLevel of the MinSdkVersion property.
+	Sdk_library_min_api_level *string
+
+	// Uses-libs dependencies that the shared library requires to work correctly.
+	//
+	// This will add dependency="foo:bar" to the <library> section.
+	Uses_libs_dependencies []string
+}
+
+// java_sdk_library_xml builds the permission xml file for a java_sdk_library.
+// Not to be used directly by users. java_sdk_library internally uses this.
+func sdkLibraryXmlFactory() android.Module {
+	module := &sdkLibraryXml{}
+
+	module.AddProperties(&module.properties)
+
+	android.InitApexModule(module)
+	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+
+	return module
+}
+
+func (module *sdkLibraryXml) UniqueApexVariations() bool {
+	// sdkLibraryXml needs a unique variation per APEX because the generated XML file contains the path to the
+	// mounted APEX, which contains the name of the APEX.
+	return true
+}
+
+// from android.PrebuiltEtcModule
+func (module *sdkLibraryXml) BaseDir() string {
+	return "etc"
+}
+
+// from android.PrebuiltEtcModule
+func (module *sdkLibraryXml) SubDir() string {
+	return "permissions"
+}
+
+var _ etc.PrebuiltEtcModule = (*sdkLibraryXml)(nil)
+
+// from android.ApexModule
+func (module *sdkLibraryXml) AvailableFor(what string) bool {
+	return true
+}
+
+func (module *sdkLibraryXml) DepsMutator(ctx android.BottomUpMutatorContext) {
+	// do nothing
+}
+
+var _ android.ApexModule = (*sdkLibraryXml)(nil)
+
+// Implements android.ApexModule
+func (module *sdkLibraryXml) ShouldSupportSdkVersion(ctx android.BaseModuleContext,
+	sdkVersion android.ApiLevel) error {
+	// sdkLibraryXml doesn't need to be checked separately because java_sdk_library is checked
+	return nil
+}
+
+// File path to the runtime implementation library
+func (module *sdkLibraryXml) implPath(ctx android.ModuleContext) string {
+	implName := proptools.String(module.properties.Lib_name)
+	if apexInfo, _ := android.ModuleProvider(ctx, android.ApexInfoProvider); !apexInfo.IsForPlatform() {
+		// TODO(b/146468504): ApexVariationName() is only a soong module name, not apex name.
+		// In most cases, this works fine. But when apex_name is set or override_apex is used
+		// this can be wrong.
+		return fmt.Sprintf("/apex/%s/javalib/%s.jar", apexInfo.BaseApexName, implName)
+	}
+	partition := "system"
+	if module.SocSpecific() {
+		partition = "vendor"
+	} else if module.DeviceSpecific() {
+		partition = "odm"
+	} else if module.ProductSpecific() {
+		partition = "product"
+	} else if module.SystemExtSpecific() {
+		partition = "system_ext"
+	}
+	return "/" + partition + "/framework/" + implName + ".jar"
+}
+
+func formattedOptionalSdkLevelAttribute(ctx android.ModuleContext, attrName string, value *string) string {
+	if value == nil {
+		return ""
+	}
+	apiLevel, err := android.ApiLevelFromUser(ctx, *value)
+	if err != nil {
+		// attributes in bp files have underscores but in the xml have dashes.
+		ctx.PropertyErrorf(strings.ReplaceAll(attrName, "-", "_"), err.Error())
+		return ""
+	}
+	if apiLevel.IsCurrent() {
+		// passing "current" would always mean a future release, never the current (or the current in
+		// progress) which means some conditions would never be triggered.
+		ctx.PropertyErrorf(strings.ReplaceAll(attrName, "-", "_"),
+			`"current" is not an allowed value for this attribute`)
+		return ""
+	}
+	// "safeValue" is safe because it translates finalized codenames to a string
+	// with their SDK int.
+	safeValue := apiLevel.String()
+	return formattedOptionalAttribute(attrName, &safeValue)
+}
+
+// formats an attribute for the xml permissions file if the value is not null
+// returns empty string otherwise
+func formattedOptionalAttribute(attrName string, value *string) string {
+	if value == nil {
+		return ""
+	}
+	return fmt.Sprintf("        %s=\"%s\"\n", attrName, *value)
+}
+
+func formattedDependenciesAttribute(dependencies []string) string {
+	if dependencies == nil {
+		return ""
+	}
+	return fmt.Sprintf("        dependency=\"%s\"\n", strings.Join(dependencies, ":"))
+}
+
+func (module *sdkLibraryXml) permissionsContents(ctx android.ModuleContext) string {
+	libName := proptools.String(module.properties.Lib_name)
+	libNameAttr := formattedOptionalAttribute("name", &libName)
+	filePath := module.implPath(ctx)
+	filePathAttr := formattedOptionalAttribute("file", &filePath)
+	implicitFromAttr := formattedOptionalSdkLevelAttribute(ctx, "on-bootclasspath-since", module.properties.On_bootclasspath_since)
+	implicitUntilAttr := formattedOptionalSdkLevelAttribute(ctx, "on-bootclasspath-before", module.properties.On_bootclasspath_before)
+	minSdkAttr := formattedOptionalSdkLevelAttribute(ctx, "min-device-sdk", module.properties.Min_device_sdk)
+	maxSdkAttr := formattedOptionalSdkLevelAttribute(ctx, "max-device-sdk", module.properties.Max_device_sdk)
+	dependenciesAttr := formattedDependenciesAttribute(module.properties.Uses_libs_dependencies)
+	// <library> is understood in all android versions whereas <apex-library> is only understood from API T (and ignored before that).
+	// similarly, min_device_sdk is only understood from T. So if a library is using that, we need to use the apex-library to make sure this library is not loaded before T
+	var libraryTag string
+	if module.properties.Min_device_sdk != nil {
+		libraryTag = "    <apex-library\n"
+	} else {
+		libraryTag = "    <library\n"
+	}
+
+	return strings.Join([]string{
+		"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n",
+		"<!-- Copyright (C) 2018 The Android Open Source Project\n",
+		"\n",
+		"    Licensed under the Apache License, Version 2.0 (the \"License\");\n",
+		"    you may not use this file except in compliance with the License.\n",
+		"    You may obtain a copy of the License at\n",
+		"\n",
+		"        http://www.apache.org/licenses/LICENSE-2.0\n",
+		"\n",
+		"    Unless required by applicable law or agreed to in writing, software\n",
+		"    distributed under the License is distributed on an \"AS IS\" BASIS,\n",
+		"    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n",
+		"    See the License for the specific language governing permissions and\n",
+		"    limitations under the License.\n",
+		"-->\n",
+		"<permissions>\n",
+		libraryTag,
+		libNameAttr,
+		filePathAttr,
+		implicitFromAttr,
+		implicitUntilAttr,
+		minSdkAttr,
+		maxSdkAttr,
+		dependenciesAttr,
+		"    />\n",
+		"</permissions>\n",
+	}, "")
+}
+
+func (module *sdkLibraryXml) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	apexInfo, _ := android.ModuleProvider(ctx, android.ApexInfoProvider)
+	module.hideApexVariantFromMake = !apexInfo.IsForPlatform()
+
+	libName := proptools.String(module.properties.Lib_name)
+	module.selfValidate(ctx)
+	xmlContent := module.permissionsContents(ctx)
+
+	module.outputFilePath = android.PathForModuleOut(ctx, libName+".xml").OutputPath
+	android.WriteFileRuleVerbatim(ctx, module.outputFilePath, xmlContent)
+
+	module.installDirPath = android.PathForModuleInstall(ctx, "etc", module.SubDir())
+	ctx.PackageFile(module.installDirPath, libName+".xml", module.outputFilePath)
+
+	ctx.SetOutputFiles(android.OutputPaths{module.outputFilePath}.Paths(), "")
+}
+
+func (module *sdkLibraryXml) AndroidMkEntries() []android.AndroidMkEntries {
+	if module.hideApexVariantFromMake {
+		return []android.AndroidMkEntries{{
+			Disabled: true,
+		}}
+	}
+
+	return []android.AndroidMkEntries{{
+		Class:      "ETC",
+		OutputFile: android.OptionalPathForPath(module.outputFilePath),
+		ExtraEntries: []android.AndroidMkExtraEntriesFunc{
+			func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
+				entries.SetString("LOCAL_MODULE_TAGS", "optional")
+				entries.SetString("LOCAL_MODULE_PATH", module.installDirPath.String())
+				entries.SetString("LOCAL_INSTALLED_MODULE_STEM", module.outputFilePath.Base())
+			},
+		},
+	}}
+}
+
+func (module *sdkLibraryXml) selfValidate(ctx android.ModuleContext) {
+	module.validateAtLeastTAttributes(ctx)
+	module.validateMinAndMaxDeviceSdk(ctx)
+	module.validateMinMaxDeviceSdkAndModuleMinSdk(ctx)
+	module.validateOnBootclasspathBeforeRequirements(ctx)
+}
+
+func (module *sdkLibraryXml) validateAtLeastTAttributes(ctx android.ModuleContext) {
+	t := android.ApiLevelOrPanic(ctx, "Tiramisu")
+	module.attrAtLeastT(ctx, t, module.properties.Min_device_sdk, "min_device_sdk")
+	module.attrAtLeastT(ctx, t, module.properties.Max_device_sdk, "max_device_sdk")
+	module.attrAtLeastT(ctx, t, module.properties.On_bootclasspath_before, "on_bootclasspath_before")
+	module.attrAtLeastT(ctx, t, module.properties.On_bootclasspath_since, "on_bootclasspath_since")
+}
+
+func (module *sdkLibraryXml) attrAtLeastT(ctx android.ModuleContext, t android.ApiLevel, attr *string, attrName string) {
+	if attr != nil {
+		if level, err := android.ApiLevelFromUser(ctx, *attr); err == nil {
+			// we will inform the user of invalid inputs when we try to write the
+			// permissions xml file so we don't need to do it here
+			if t.GreaterThan(level) {
+				ctx.PropertyErrorf(attrName, "Attribute value needs to be at least T")
+			}
+		}
+	}
+}
+
+func (module *sdkLibraryXml) validateMinAndMaxDeviceSdk(ctx android.ModuleContext) {
+	if module.properties.Min_device_sdk != nil && module.properties.Max_device_sdk != nil {
+		min, minErr := android.ApiLevelFromUser(ctx, *module.properties.Min_device_sdk)
+		max, maxErr := android.ApiLevelFromUser(ctx, *module.properties.Max_device_sdk)
+		if minErr == nil && maxErr == nil {
+			// we will inform the user of invalid inputs when we try to write the
+			// permissions xml file so we don't need to do it here
+			if min.GreaterThan(max) {
+				ctx.ModuleErrorf("min_device_sdk can't be greater than max_device_sdk")
+			}
+		}
+	}
+}
+
+func (module *sdkLibraryXml) validateMinMaxDeviceSdkAndModuleMinSdk(ctx android.ModuleContext) {
+	moduleMinApi := android.ApiLevelOrPanic(ctx, *module.properties.Sdk_library_min_api_level)
+	if module.properties.Min_device_sdk != nil {
+		api, err := android.ApiLevelFromUser(ctx, *module.properties.Min_device_sdk)
+		if err == nil {
+			if moduleMinApi.GreaterThan(api) {
+				ctx.PropertyErrorf("min_device_sdk", "Can't be less than module's min sdk (%s)", moduleMinApi)
+			}
+		}
+	}
+	if module.properties.Max_device_sdk != nil {
+		api, err := android.ApiLevelFromUser(ctx, *module.properties.Max_device_sdk)
+		if err == nil {
+			if moduleMinApi.GreaterThan(api) {
+				ctx.PropertyErrorf("max_device_sdk", "Can't be less than module's min sdk (%s)", moduleMinApi)
+			}
+		}
+	}
+}
+
+func (module *sdkLibraryXml) validateOnBootclasspathBeforeRequirements(ctx android.ModuleContext) {
+	moduleMinApi := android.ApiLevelOrPanic(ctx, *module.properties.Sdk_library_min_api_level)
+	if module.properties.On_bootclasspath_before != nil {
+		t := android.ApiLevelOrPanic(ctx, "Tiramisu")
+		// if we use the attribute, then we need to do this validation
+		if moduleMinApi.LessThan(t) {
+			// if minAPi is < T, then we need to have min_device_sdk (which only accepts T+)
+			if module.properties.Min_device_sdk == nil {
+				ctx.PropertyErrorf("on_bootclasspath_before", "Using this property requires that the module's min_sdk_version or the shared library's min_device_sdk is at least T")
+			}
+		}
+	}
+}
diff --git a/java/sdk_library_test.go b/java/sdk_library_test.go
index 31fbc5a..6031d72 100644
--- a/java/sdk_library_test.go
+++ b/java/sdk_library_test.go
@@ -22,8 +22,6 @@
 	"testing"
 
 	"android/soong/android"
-
-	"github.com/google/blueprint/proptools"
 )
 
 func TestJavaSdkLibrary(t *testing.T) {
@@ -55,7 +53,7 @@
 		java_library {
 			name: "baz",
 			srcs: ["c.java"],
-			libs: ["foo", "bar.stubs"],
+			libs: ["foo.stubs.system", "bar.stubs"],
 			sdk_version: "system_current",
 		}
 		java_sdk_library {
@@ -92,25 +90,25 @@
 		java_library {
 		    name: "qux",
 		    srcs: ["c.java"],
-		    libs: ["baz", "fred", "quuz.stubs", "wilma", "barney", "betty"],
+		    libs: ["baz", "fred.stubs", "quuz.stubs", "wilma.stubs", "barney.stubs.system", "betty.stubs.system"],
 		    sdk_version: "system_current",
 		}
 		java_library {
 			name: "baz-test",
 			srcs: ["c.java"],
-			libs: ["foo"],
+			libs: ["foo.stubs.test"],
 			sdk_version: "test_current",
 		}
 		java_library {
 			name: "baz-29",
 			srcs: ["c.java"],
-			libs: ["foo"],
+			libs: ["sdk_system_29_foo"],
 			sdk_version: "system_29",
 		}
 		java_library {
 			name: "baz-module-30",
 			srcs: ["c.java"],
-			libs: ["foo"],
+			libs: ["sdk_module-lib_30_foo"],
 			sdk_version: "module_30",
 		}
 	`)
@@ -162,11 +160,11 @@
 
 	baz29Javac := result.ModuleForTests("baz-29", "android_common").Rule("javac")
 	// tests if baz-29 is actually linked to the system 29 stubs lib
-	android.AssertStringDoesContain(t, "baz-29 javac classpath", baz29Javac.Args["classpath"], "prebuilts/sdk/29/system/foo.jar")
+	android.AssertStringDoesContain(t, "baz-29 javac classpath", baz29Javac.Args["classpath"], "prebuilts/sdk/sdk_system_29_foo/android_common/combined/sdk_system_29_foo.jar")
 
 	bazModule30Javac := result.ModuleForTests("baz-module-30", "android_common").Rule("javac")
 	// tests if "baz-module-30" is actually linked to the module 30 stubs lib
-	android.AssertStringDoesContain(t, "baz-module-30 javac classpath", bazModule30Javac.Args["classpath"], "prebuilts/sdk/30/module-lib/foo.jar")
+	android.AssertStringDoesContain(t, "baz-module-30 javac classpath", bazModule30Javac.Args["classpath"], "prebuilts/sdk/sdk_module-lib_30_foo/android_common/combined/sdk_module-lib_30_foo.jar")
 
 	// test if baz has exported SDK lib names foo and bar to qux
 	qux := result.ModuleForTests("qux", "android_common")
@@ -445,7 +443,7 @@
 		java_library {
 			name: "bar",
 			srcs: ["b.java"],
-			libs: ["foo"],
+			libs: ["foo.stubs"],
 		}
 		`)
 
@@ -763,7 +761,7 @@
 		java_library {
 			name: "bar",
 			srcs: ["a.java"],
-			libs: ["foo-public", "foo-system", "foo-module-lib", "foo-system-server"],
+			libs: ["foo-public.stubs", "foo-system.stubs.system", "foo-module-lib.stubs.module_lib", "foo-system-server.stubs.system_server"],
 			sdk_version: "system_server_current",
 		}
 		`)
@@ -789,102 +787,26 @@
 	}
 }
 
-func TestJavaSdkLibrary_MissingScope(t *testing.T) {
-	prepareForJavaTest.
-		ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(`requires api scope module-lib from foo but it only has \[\] available`)).
-		RunTestWithBp(t, `
-			java_sdk_library {
-				name: "foo",
-				srcs: ["a.java"],
-				public: {
-					enabled: false,
-				},
-			}
-
-			java_library {
-				name: "baz",
-				srcs: ["a.java"],
-				libs: ["foo"],
-				sdk_version: "module_current",
-			}
-		`)
-}
-
-func TestJavaSdkLibrary_FallbackScope(t *testing.T) {
-	android.GroupFixturePreparers(
-		prepareForJavaTest,
-		PrepareForTestWithJavaSdkLibraryFiles,
-		FixtureWithLastReleaseApis("foo"),
-	).RunTestWithBp(t, `
-		java_sdk_library {
-			name: "foo",
-			srcs: ["a.java"],
-			system: {
-				enabled: true,
-			},
-		}
-
-		java_library {
-			name: "baz",
-			srcs: ["a.java"],
-			libs: ["foo"],
-			// foo does not have module-lib scope so it should fallback to system
-			sdk_version: "module_current",
-		}
-		`)
-}
-
-func TestJavaSdkLibrary_DefaultToStubs(t *testing.T) {
-	result := android.GroupFixturePreparers(
-		prepareForJavaTest,
-		PrepareForTestWithJavaSdkLibraryFiles,
-		FixtureWithLastReleaseApis("foo"),
-	).RunTestWithBp(t, `
-		java_sdk_library {
-			name: "foo",
-			srcs: ["a.java"],
-			system: {
-				enabled: true,
-			},
-			default_to_stubs: true,
-		}
-
-		java_library {
-			name: "baz",
-			srcs: ["a.java"],
-			libs: ["foo"],
-			// does not have sdk_version set, should fallback to module,
-			// which will then fallback to system because the module scope
-			// is not enabled.
-		}
-		`)
-	// The baz library should depend on the system stubs jar.
-	bazLibrary := result.ModuleForTests("baz", "android_common").Rule("javac")
-	if expected, actual := `^-classpath .*:out/soong/[^:]*/turbine-combined/foo\.stubs.system\.jar$`, bazLibrary.Args["classpath"]; !regexp.MustCompile(expected).MatchString(actual) {
-		t.Errorf("expected %q, found %#q", expected, actual)
-	}
-}
-
 func TestJavaSdkLibraryImport(t *testing.T) {
 	result := prepareForJavaTest.RunTestWithBp(t, `
 		java_library {
 			name: "foo",
 			srcs: ["a.java"],
-			libs: ["sdklib"],
+			libs: ["sdklib.stubs"],
 			sdk_version: "current",
 		}
 
 		java_library {
 			name: "foo.system",
 			srcs: ["a.java"],
-			libs: ["sdklib"],
+			libs: ["sdklib.stubs.system"],
 			sdk_version: "system_current",
 		}
 
 		java_library {
 			name: "foo.test",
 			srcs: ["a.java"],
-			libs: ["sdklib"],
+			libs: ["sdklib.stubs.test"],
 			sdk_version: "test_current",
 		}
 
@@ -1017,7 +939,7 @@
 		java_library {
 			name: "public",
 			srcs: ["a.java"],
-			libs: ["sdklib"],
+			libs: ["sdklib.stubs"],
 			sdk_version: "current",
 		}
 		`)
@@ -1190,155 +1112,6 @@
 	}
 }
 
-func TestJavaSdkLibraryEnforce(t *testing.T) {
-	partitionToBpOption := func(partition string) string {
-		switch partition {
-		case "system":
-			return ""
-		case "vendor":
-			return "soc_specific: true,"
-		case "product":
-			return "product_specific: true,"
-		default:
-			panic("Invalid partition group name: " + partition)
-		}
-	}
-
-	type testConfigInfo struct {
-		libraryType                string
-		fromPartition              string
-		toPartition                string
-		enforceProductInterface    bool
-		enforceJavaSdkLibraryCheck bool
-		allowList                  []string
-	}
-
-	createPreparer := func(info testConfigInfo) android.FixturePreparer {
-		bpFileTemplate := `
-			java_library {
-				name: "foo",
-				srcs: ["foo.java"],
-				libs: ["bar"],
-				sdk_version: "current",
-				%s
-			}
-
-			%s {
-				name: "bar",
-				srcs: ["bar.java"],
-				sdk_version: "current",
-				%s
-			}
-		`
-
-		bpFile := fmt.Sprintf(bpFileTemplate,
-			partitionToBpOption(info.fromPartition),
-			info.libraryType,
-			partitionToBpOption(info.toPartition))
-
-		return android.GroupFixturePreparers(
-			PrepareForTestWithJavaSdkLibraryFiles,
-			FixtureWithLastReleaseApis("bar"),
-			android.FixtureWithRootAndroidBp(bpFile),
-			android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
-				variables.EnforceProductPartitionInterface = proptools.BoolPtr(info.enforceProductInterface)
-				variables.EnforceInterPartitionJavaSdkLibrary = proptools.BoolPtr(info.enforceJavaSdkLibraryCheck)
-				variables.InterPartitionJavaLibraryAllowList = info.allowList
-			}),
-		)
-	}
-
-	runTest := func(t *testing.T, info testConfigInfo, expectedErrorPattern string) {
-		t.Run(fmt.Sprintf("%v", info), func(t *testing.T) {
-			errorHandler := android.FixtureExpectsNoErrors
-			if expectedErrorPattern != "" {
-				errorHandler = android.FixtureExpectsAtLeastOneErrorMatchingPattern(expectedErrorPattern)
-			}
-			android.GroupFixturePreparers(
-				prepareForJavaTest,
-				createPreparer(info),
-			).
-				ExtendWithErrorHandler(errorHandler).
-				RunTest(t)
-		})
-	}
-
-	errorMessage := "is not allowed across the partitions"
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_library",
-		fromPartition:              "product",
-		toPartition:                "system",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: false,
-	}, "")
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_library",
-		fromPartition:              "product",
-		toPartition:                "system",
-		enforceProductInterface:    false,
-		enforceJavaSdkLibraryCheck: true,
-	}, "")
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_library",
-		fromPartition:              "product",
-		toPartition:                "system",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: true,
-	}, errorMessage)
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_library",
-		fromPartition:              "vendor",
-		toPartition:                "system",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: true,
-	}, errorMessage)
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_library",
-		fromPartition:              "vendor",
-		toPartition:                "system",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: true,
-		allowList:                  []string{"bar"},
-	}, "")
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_library",
-		fromPartition:              "vendor",
-		toPartition:                "product",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: true,
-	}, errorMessage)
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_sdk_library",
-		fromPartition:              "product",
-		toPartition:                "system",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: true,
-	}, "")
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_sdk_library",
-		fromPartition:              "vendor",
-		toPartition:                "system",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: true,
-	}, "")
-
-	runTest(t, testConfigInfo{
-		libraryType:                "java_sdk_library",
-		fromPartition:              "vendor",
-		toPartition:                "product",
-		enforceProductInterface:    true,
-		enforceJavaSdkLibraryCheck: true,
-	}, "")
-}
-
 func TestJavaSdkLibraryDist(t *testing.T) {
 	result := android.GroupFixturePreparers(
 		PrepareForTestWithJavaBuildComponents,
@@ -1657,7 +1430,7 @@
 			name: "bar",
 			srcs: ["c.java", "b.java"],
 			libs: [
-				"foo",
+				"foo.stubs",
 			],
 			uses_libs: [
 				"foo",
@@ -1752,7 +1525,7 @@
 			name: "mymodule",
 			srcs: ["a.java"],
 			sdk_version: "current",
-			libs: ["sdklib",], // this should be dynamically resolved to sdklib.stubs (source) or prebuilt_sdklib.stubs (prebuilt)
+			libs: ["sdklib.stubs",], // this should be dynamically resolved to sdklib.stubs (source) or prebuilt_sdklib.stubs (prebuilt)
 		}
 	`
 
@@ -1893,3 +1666,111 @@
 		}
 		`)
 }
+
+func TestSdkLibDirectDependency(t *testing.T) {
+	android.GroupFixturePreparers(
+		prepareForJavaTest,
+		PrepareForTestWithJavaSdkLibraryFiles,
+		FixtureWithLastReleaseApis("foo", "bar"),
+	).ExtendWithErrorHandler(android.FixtureExpectsAllErrorsToMatchAPattern([]string{
+		`module "baz" variant "android_common": cannot depend directly on java_sdk_library ` +
+			`"foo"; try depending on "foo.stubs", or "foo.impl" instead`,
+		`module "baz" variant "android_common": cannot depend directly on java_sdk_library ` +
+			`"prebuilt_bar"; try depending on "bar.stubs", or "bar.impl" instead`,
+	}),
+	).RunTestWithBp(t, `
+		java_sdk_library {
+			name: "foo",
+			srcs: ["a.java"],
+			sdk_version: "current",
+			public: {
+				enabled: true,
+			},
+		}
+
+		java_sdk_library_import {
+			name: "foo",
+			public: {
+				jars: ["a.jar"],
+				stub_srcs: ["a.java"],
+				current_api: "current.txt",
+				removed_api: "removed.txt",
+				annotations: "annotations.zip",
+			},
+		}
+
+		java_sdk_library {
+			name: "bar",
+			srcs: ["a.java"],
+			sdk_version: "current",
+			public: {
+				enabled: true,
+			},
+		}
+
+		java_sdk_library_import {
+			name: "bar",
+			prefer: true,
+			public: {
+				jars: ["a.jar"],
+				stub_srcs: ["a.java"],
+				current_api: "current.txt",
+				removed_api: "removed.txt",
+				annotations: "annotations.zip",
+			},
+		}
+
+		java_library {
+			name: "baz",
+			srcs: ["b.java"],
+			libs: [
+				"foo",
+				"bar",
+			],
+		}
+	`)
+}
+
+func TestSdkLibDirectDependencyWithPrebuiltSdk(t *testing.T) {
+	android.GroupFixturePreparers(
+		prepareForJavaTest,
+		PrepareForTestWithJavaSdkLibraryFiles,
+		android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
+			variables.Platform_sdk_version = intPtr(34)
+			variables.Platform_sdk_codename = stringPtr("VanillaIceCream")
+			variables.Platform_version_active_codenames = []string{"VanillaIceCream"}
+			variables.Platform_systemsdk_versions = []string{"33", "34", "VanillaIceCream"}
+			variables.DeviceSystemSdkVersions = []string{"VanillaIceCream"}
+		}),
+		FixtureWithPrebuiltApis(map[string][]string{
+			"33": {"foo"},
+			"34": {"foo"},
+			"35": {"foo"},
+		}),
+	).ExtendWithErrorHandler(android.FixtureExpectsOneErrorPattern(
+		`module "baz" variant "android_common": cannot depend directly on java_sdk_library "foo"; `+
+			`try depending on "sdk_public_33_foo", "sdk_system_33_foo", "sdk_test_33_foo", `+
+			`"sdk_module-lib_33_foo", or "sdk_system-server_33_foo" instead`),
+	).RunTestWithBp(t, `
+		java_sdk_library {
+			name: "foo",
+			srcs: ["a.java"],
+			sdk_version: "current",
+			public: {
+				enabled: true,
+			},
+			system: {
+				enabled: true,
+			},
+		}
+
+		java_library {
+			name: "baz",
+			srcs: ["b.java"],
+			libs: [
+				"foo",
+			],
+			sdk_version: "system_33",
+		}
+	`)
+}
diff --git a/java/testing.go b/java/testing.go
index 0c79e9f..6cc9fd1 100644
--- a/java/testing.go
+++ b/java/testing.go
@@ -424,7 +424,9 @@
 		"kotlin-stdlib-jdk8",
 		"kotlin-annotations",
 		"stub-annotations",
+
 		"aconfig-annotations-lib",
+		"aconfig_storage_reader_java",
 		"unsupportedappusage",
 	}
 
diff --git a/linkerconfig/proto/Android.bp b/linkerconfig/proto/Android.bp
index 754e7bf..a930502 100644
--- a/linkerconfig/proto/Android.bp
+++ b/linkerconfig/proto/Android.bp
@@ -15,6 +15,7 @@
         "//apex_available:platform",
         "//apex_available:anyapex",
     ],
+    visibility: ["//system/linkerconfig"],
 }
 
 python_library_host {
diff --git a/phony/Android.bp b/phony/Android.bp
index db5efc9..2e250c6 100644
--- a/phony/Android.bp
+++ b/phony/Android.bp
@@ -13,4 +13,5 @@
         "phony.go",
     ],
     pluginFor: ["soong_build"],
+    visibility: ["//visibility:public"],
 }
diff --git a/response/Android.bp b/response/Android.bp
index e19981f..2f319fe 100644
--- a/response/Android.bp
+++ b/response/Android.bp
@@ -13,4 +13,8 @@
     testSrcs: [
         "response_test.go",
     ],
+    visibility: [
+        "//build/make/tools/compliance",
+        "//build/soong:__subpackages__",
+    ],
 }
diff --git a/rust/Android.bp b/rust/Android.bp
index 53c9462..781f325 100644
--- a/rust/Android.bp
+++ b/rust/Android.bp
@@ -61,4 +61,5 @@
         "test_test.go",
     ],
     pluginFor: ["soong_build"],
+    visibility: ["//visibility:public"],
 }
diff --git a/rust/clippy.go b/rust/clippy.go
index 6f0ed7f..426fd73 100644
--- a/rust/clippy.go
+++ b/rust/clippy.go
@@ -38,11 +38,14 @@
 }
 
 func (c *clippy) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags, PathDeps) {
-	enabled, lints, err := config.ClippyLintsForDir(ctx.ModuleDir(), c.Properties.Clippy_lints)
+	dirEnabled, lints, err := config.ClippyLintsForDir(ctx.ModuleDir(), c.Properties.Clippy_lints)
 	if err != nil {
 		ctx.PropertyErrorf("clippy_lints", err.Error())
 	}
-	flags.Clippy = enabled
+
+	envDisable := ctx.Config().IsEnvTrue("SOONG_DISABLE_CLIPPY")
+
+	flags.Clippy = dirEnabled && !envDisable
 	flags.ClippyFlags = append(flags.ClippyFlags, lints)
 	return flags, deps
 }
diff --git a/rust/config/Android.bp b/rust/config/Android.bp
index 79ea7a1..25f7580 100644
--- a/rust/config/Android.bp
+++ b/rust/config/Android.bp
@@ -24,4 +24,8 @@
         "x86_64_device.go",
         "arm64_linux_host.go",
     ],
+    visibility: [
+        "//build/soong:__subpackages__",
+        "//prebuilts/rust/soong",
+    ],
 }
diff --git a/rust/config/arm64_device.go b/rust/config/arm64_device.go
index 9850570..94a4457 100644
--- a/rust/config/arm64_device.go
+++ b/rust/config/arm64_device.go
@@ -35,8 +35,13 @@
 		},
 		"armv8-2a":         []string{},
 		"armv8-2a-dotprod": []string{},
+
+		// branch-protection=bti,pac-ret is equivalent to Clang's mbranch-protection=standard
 		"armv9-a": []string{
-			// branch-protection=bti,pac-ret is equivalent to Clang's mbranch-protection=standard
+			"-Z branch-protection=bti,pac-ret",
+			"-Z stack-protector=none",
+		},
+		"armv9-2a": []string{
 			"-Z branch-protection=bti,pac-ret",
 			"-Z stack-protector=none",
 		},
diff --git a/rust/config/x86_64_device.go b/rust/config/x86_64_device.go
index fee1923..3c484d8 100644
--- a/rust/config/x86_64_device.go
+++ b/rust/config/x86_64_device.go
@@ -29,6 +29,7 @@
 
 	x86_64ArchVariantRustFlags = map[string][]string{
 		"":                            []string{},
+		"alderlake":                   []string{"-C target-cpu=alderlake"},
 		"broadwell":                   []string{"-C target-cpu=broadwell"},
 		"goldmont":                    []string{"-C target-cpu=goldmont"},
 		"goldmont-plus":               []string{"-C target-cpu=goldmont-plus"},
diff --git a/rust/config/x86_device.go b/rust/config/x86_device.go
index 5d9d88a..3c597cc 100644
--- a/rust/config/x86_device.go
+++ b/rust/config/x86_device.go
@@ -27,6 +27,7 @@
 
 	x86ArchVariantRustFlags = map[string][]string{
 		"":                            []string{},
+		"alderlake":                   []string{"-C target-cpu=alderlake"},
 		"atom":                        []string{"-C target-cpu=atom"},
 		"broadwell":                   []string{"-C target-cpu=broadwell"},
 		"goldmont":                    []string{"-C target-cpu=goldmont"},
diff --git a/rust/coverage.go b/rust/coverage.go
index 91a7806..381fcf1 100644
--- a/rust/coverage.go
+++ b/rust/coverage.go
@@ -87,10 +87,6 @@
 }
 
 func (cov *coverage) begin(ctx BaseModuleContext) {
-	if ctx.Host() {
-		// Host coverage not yet supported.
-	} else {
-		// Update useSdk and sdkVersion args if Rust modules become SDK aware.
-		cov.Properties = cc.SetCoverageProperties(ctx, cov.Properties, ctx.RustModule().nativeCoverage(), false, "")
-	}
+	// Update useSdk and sdkVersion args if Rust modules become SDK aware.
+	cov.Properties = cc.SetCoverageProperties(ctx, cov.Properties, ctx.RustModule().nativeCoverage(), false, "")
 }
diff --git a/scripts/check_prebuilt_presigned_apk.py b/scripts/check_prebuilt_presigned_apk.py
index abab2e1..db64f90 100755
--- a/scripts/check_prebuilt_presigned_apk.py
+++ b/scripts/check_prebuilt_presigned_apk.py
@@ -36,7 +36,7 @@
                 if fail:
                     sys.exit(args.apk + ': Contains compressed JNI libraries')
                 return True
-            # It's ok for non-privileged apps to have compressed dex files, see go/gms-uncompressed-jni-slides
+            # It's ok for non-privileged apps to have compressed dex files
             if args.privileged and args.uncompress_priv_app_dex:
                 if info.filename.endswith('.dex') and info.compress_type != zipfile.ZIP_STORED:
                     if fail:
@@ -46,6 +46,10 @@
 
 
 def main():
+    # This script enforces requirements for presigned apps as documented in:
+    # go/gms-uncompressed-jni-slides
+    # https://docs.partner.android.com/gms/building/integrating/jni-libs
+    # https://docs.partner.android.com/gms/policies/domains/mba#jni-lib
     parser = argparse.ArgumentParser()
     parser.add_argument('--aapt2', help = "the path to the aapt2 executable")
     parser.add_argument('--zipalign', help = "the path to the zipalign executable")
diff --git a/scripts/manifest.py b/scripts/manifest.py
index 81f9c61..32603e8 100755
--- a/scripts/manifest.py
+++ b/scripts/manifest.py
@@ -23,9 +23,40 @@
 android_ns = 'http://schemas.android.com/apk/res/android'
 
 
+def get_or_create_applications(doc, manifest):
+  """Get all <application> tags from the manifest, or create one if none exist.
+  Multiple <application> tags may exist when manifest feature flagging is used.
+  """
+  applications = get_children_with_tag(manifest, 'application')
+  if len(applications) == 0:
+    application = doc.createElement('application')
+    indent = get_indent(manifest.firstChild, 1)
+    first = manifest.firstChild
+    manifest.insertBefore(doc.createTextNode(indent), first)
+    manifest.insertBefore(application, first)
+    applications.append(application)
+  return applications
+
+
+def get_or_create_uses_sdks(doc, manifest):
+  """Get all <uses-sdk> tags from the manifest, or create one if none exist.
+  Multiple <uses-sdk> tags may exist when manifest feature flagging is used.
+  """
+  uses_sdks = get_children_with_tag(manifest, 'uses-sdk')
+  if len(uses_sdks) == 0:
+    uses_sdk = doc.createElement('uses-sdk')
+    indent = get_indent(manifest.firstChild, 1)
+    manifest.insertBefore(uses_sdk, manifest.firstChild)
+
+    # Insert an indent before uses-sdk to line it up with the indentation of the
+    # other children of the <manifest> tag.
+    manifest.insertBefore(doc.createTextNode(indent), manifest.firstChild)
+    uses_sdks.append(uses_sdk)
+  return uses_sdks
+
 def get_children_with_tag(parent, tag_name):
   children = []
-  for child in  parent.childNodes:
+  for child in parent.childNodes:
     if child.nodeType == minidom.Node.ELEMENT_NODE and \
        child.tagName == tag_name:
       children.append(child)
diff --git a/scripts/manifest_check.py b/scripts/manifest_check.py
index b101259..1e32d1d 100755
--- a/scripts/manifest_check.py
+++ b/scripts/manifest_check.py
@@ -25,10 +25,7 @@
 import sys
 from xml.dom import minidom
 
-from manifest import android_ns
-from manifest import get_children_with_tag
-from manifest import parse_manifest
-from manifest import write_xml
+from manifest import *
 
 
 class ManifestMismatchError(Exception):
@@ -122,7 +119,7 @@
     # handles module names specified in Android.bp properties. However not all
     # <uses-library> entries in the manifest correspond to real modules: some of
     # the optional libraries may be missing at build time. Therefor this script
-    # accepts raw module names as spelled in Android.bp/Amdroid.mk and trims the
+    # accepts raw module names as spelled in Android.bp/Android.mk and trims the
     # optional namespace part manually.
     required = trim_namespace_parts(required)
     optional = trim_namespace_parts(optional)
@@ -205,15 +202,9 @@
     """Extract <uses-library> tags from the manifest."""
 
     manifest = parse_manifest(xml)
-    elems = get_children_with_tag(manifest, 'application')
-    if len(elems) > 1:
-        raise RuntimeError('found multiple <application> tags')
-    if not elems:
-        return [], [], []
-
-    application = elems[0]
-
-    libs = get_children_with_tag(application, 'uses-library')
+    libs = [child
+            for application in get_or_create_applications(xml, manifest)
+            for child in get_children_with_tag(application, 'uses-library')]
 
     required = [uses_library_name(x) for x in libs if uses_library_required(x)]
     optional = [
@@ -266,7 +257,7 @@
     manifest: manifest (either parsed XML or aapt dump of APK)
     is_apk:   if the manifest comes from an APK or an XML file
     """
-    if is_apk: #pylint: disable=no-else-return
+    if is_apk:  #pylint: disable=no-else-return
         return extract_target_sdk_version_apk(manifest)
     else:
         return extract_target_sdk_version_xml(manifest)
@@ -376,7 +367,7 @@
 
             # Create a status file that is empty on success, or contains an
             # error message on failure. When exceptions are suppressed,
-            # dexpreopt command command will check file size to determine if
+            # dexpreopt command will check file size to determine if
             # the check has failed.
             if args.enforce_uses_libraries_status:
                 with open(args.enforce_uses_libraries_status, 'w') as f:
@@ -386,7 +377,7 @@
         if args.extract_target_sdk_version:
             try:
                 print(extract_target_sdk_version(manifest, is_apk))
-            except: #pylint: disable=bare-except
+            except:  #pylint: disable=bare-except
                 # Failed; don't crash, return "any" SDK version. This will
                 # result in dexpreopt not adding any compatibility libraries.
                 print(10000)
diff --git a/scripts/manifest_check_test.py b/scripts/manifest_check_test.py
index 8003b3e..abe0d8b 100755
--- a/scripts/manifest_check_test.py
+++ b/scripts/manifest_check_test.py
@@ -44,8 +44,8 @@
 class EnforceUsesLibrariesTest(unittest.TestCase):
     """Unit tests for add_extract_native_libs function."""
 
-    def run_test(self, xml, apk, uses_libraries=[], optional_uses_libraries=[],
-                 missing_optional_uses_libraries=[]): #pylint: disable=dangerous-default-value
+    def run_test(self, xml, apk, uses_libraries=(), optional_uses_libraries=(),
+                 missing_optional_uses_libraries=()):  #pylint: disable=dangerous-default-value
         doc = minidom.parseString(xml)
         try:
             relax = False
@@ -114,14 +114,14 @@
         self.assertFalse(matches)
 
     def test_missing_uses_library(self):
-        xml = self.xml_tmpl % ('')
-        apk = self.apk_tmpl % ('')
+        xml = self.xml_tmpl % ''
+        apk = self.apk_tmpl % ''
         matches = self.run_test(xml, apk, uses_libraries=['foo'])
         self.assertFalse(matches)
 
     def test_missing_optional_uses_library(self):
-        xml = self.xml_tmpl % ('')
-        apk = self.apk_tmpl % ('')
+        xml = self.xml_tmpl % ''
+        apk = self.apk_tmpl % ''
         matches = self.run_test(xml, apk, optional_uses_libraries=['foo'])
         self.assertFalse(matches)
 
@@ -234,6 +234,32 @@
             optional_uses_libraries=['//x/y/z:bar'])
         self.assertTrue(matches)
 
+    def test_multiple_applications(self):
+        xml = """<?xml version="1.0" encoding="utf-8"?>
+            <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+                <application android:featureFlag="foo">
+                    <uses-library android:name="foo" />
+                    <uses-library android:name="bar" android:required="false" />
+                </application>
+                <application android:featureFlag="!foo">
+                    <uses-library android:name="foo" />
+                    <uses-library android:name="qux" android:required="false" />
+                </application>
+            </manifest>
+        """
+        apk = self.apk_tmpl % ('\n'.join([
+            uses_library_apk('foo'),
+            uses_library_apk('bar', required_apk(False)),
+            uses_library_apk('foo'),
+            uses_library_apk('qux', required_apk(False))
+        ]))
+        matches = self.run_test(
+            xml,
+            apk,
+            uses_libraries=['//x/y/z:foo'],
+            optional_uses_libraries=['//x/y/z:bar', '//x/y/z:qux'])
+        self.assertTrue(matches)
+
 
 class ExtractTargetSdkVersionTest(unittest.TestCase):
 
@@ -256,12 +282,12 @@
         "targetSdkVersion:'%s'\n"
         "uses-permission: name='android.permission.ACCESS_NETWORK_STATE'\n")
 
-    def test_targert_sdk_version_28(self):
+    def test_target_sdk_version_28(self):
         xml = self.xml_tmpl % '28'
         apk = self.apk_tmpl % '28'
         self.run_test(xml, apk, '28')
 
-    def test_targert_sdk_version_29(self):
+    def test_target_sdk_version_29(self):
         xml = self.xml_tmpl % '29'
         apk = self.apk_tmpl % '29'
         self.run_test(xml, apk, '29')
diff --git a/scripts/manifest_fixer.py b/scripts/manifest_fixer.py
index 58079aa..9847ad5 100755
--- a/scripts/manifest_fixer.py
+++ b/scripts/manifest_fixer.py
@@ -23,15 +23,7 @@
 from xml.dom import minidom
 
 
-from manifest import android_ns
-from manifest import compare_version_gt
-from manifest import ensure_manifest_android_ns
-from manifest import find_child_with_attribute
-from manifest import get_children_with_tag
-from manifest import get_indent
-from manifest import parse_manifest
-from manifest import write_xml
-
+from manifest import *
 
 def parse_args():
   """Parse commandline arguments."""
@@ -48,9 +40,9 @@
   parser.add_argument('--library', dest='library', action='store_true',
                       help='manifest is for a static library')
   parser.add_argument('--uses-library', dest='uses_libraries', action='append',
-                      help='specify additional <uses-library> tag to add. android:requred is set to true')
+                      help='specify additional <uses-library> tag to add. android:required is set to true')
   parser.add_argument('--optional-uses-library', dest='optional_uses_libraries', action='append',
-                      help='specify additional <uses-library> tag to add. android:requred is set to false')
+                      help='specify additional <uses-library> tag to add. android:required is set to false')
   parser.add_argument('--uses-non-sdk-api', dest='uses_non_sdk_api', action='store_true',
                       help='manifest is for a package built against the platform')
   parser.add_argument('--logging-parent', dest='logging_parent', default='',
@@ -91,47 +83,33 @@
 
   manifest = parse_manifest(doc)
 
-  # Get or insert the uses-sdk element
-  uses_sdk = get_children_with_tag(manifest, 'uses-sdk')
-  if len(uses_sdk) > 1:
-    raise RuntimeError('found multiple uses-sdk elements')
-  elif len(uses_sdk) == 1:
-    element = uses_sdk[0]
-  else:
-    element = doc.createElement('uses-sdk')
-    indent = get_indent(manifest.firstChild, 1)
-    manifest.insertBefore(element, manifest.firstChild)
-
-    # Insert an indent before uses-sdk to line it up with the indentation of the
-    # other children of the <manifest> tag.
-    manifest.insertBefore(doc.createTextNode(indent), manifest.firstChild)
-
-  # Get or insert the minSdkVersion attribute.  If it is already present, make
-  # sure it as least the requested value.
-  min_attr = element.getAttributeNodeNS(android_ns, 'minSdkVersion')
-  if min_attr is None:
-    min_attr = doc.createAttributeNS(android_ns, 'android:minSdkVersion')
-    min_attr.value = min_sdk_version
-    element.setAttributeNode(min_attr)
-  else:
-    if compare_version_gt(min_sdk_version, min_attr.value):
+  for uses_sdk in get_or_create_uses_sdks(doc, manifest):
+    # Get or insert the minSdkVersion attribute.  If it is already present, make
+    # sure it as least the requested value.
+    min_attr = uses_sdk.getAttributeNodeNS(android_ns, 'minSdkVersion')
+    if min_attr is None:
+      min_attr = doc.createAttributeNS(android_ns, 'android:minSdkVersion')
       min_attr.value = min_sdk_version
-
-  # Insert the targetSdkVersion attribute if it is missing.  If it is already
-  # present leave it as is.
-  target_attr = element.getAttributeNodeNS(android_ns, 'targetSdkVersion')
-  if target_attr is None:
-    target_attr = doc.createAttributeNS(android_ns, 'android:targetSdkVersion')
-    if library:
-      # TODO(b/117122200): libraries shouldn't set targetSdkVersion at all, but
-      # ManifestMerger treats minSdkVersion="Q" as targetSdkVersion="Q" if it
-      # is empty.  Set it to something low so that it will be overriden by the
-      # main manifest, but high enough that it doesn't cause implicit
-      # permissions grants.
-      target_attr.value = '16'
+      uses_sdk.setAttributeNode(min_attr)
     else:
-      target_attr.value = target_sdk_version
-    element.setAttributeNode(target_attr)
+      if compare_version_gt(min_sdk_version, min_attr.value):
+        min_attr.value = min_sdk_version
+
+    # Insert the targetSdkVersion attribute if it is missing.  If it is already
+    # present leave it as is.
+    target_attr = uses_sdk.getAttributeNodeNS(android_ns, 'targetSdkVersion')
+    if target_attr is None:
+      target_attr = doc.createAttributeNS(android_ns, 'android:targetSdkVersion')
+      if library:
+        # TODO(b/117122200): libraries shouldn't set targetSdkVersion at all, but
+        # ManifestMerger treats minSdkVersion="Q" as targetSdkVersion="Q" if it
+        # is empty.  Set it to something low so that it will be overridden by the
+        # main manifest, but high enough that it doesn't cause implicit
+        # permissions grants.
+        target_attr.value = '16'
+      else:
+        target_attr.value = target_sdk_version
+      uses_sdk.setAttributeNode(target_attr)
 
 
 def add_logging_parent(doc, logging_parent_value):
@@ -147,37 +125,27 @@
   manifest = parse_manifest(doc)
 
   logging_parent_key = 'android.content.pm.LOGGING_PARENT'
-  elems = get_children_with_tag(manifest, 'application')
-  application = elems[0] if len(elems) == 1 else None
-  if len(elems) > 1:
-    raise RuntimeError('found multiple <application> tags')
-  elif not elems:
-    application = doc.createElement('application')
-    indent = get_indent(manifest.firstChild, 1)
-    first = manifest.firstChild
-    manifest.insertBefore(doc.createTextNode(indent), first)
-    manifest.insertBefore(application, first)
+  for application in get_or_create_applications(doc, manifest):
+    indent = get_indent(application.firstChild, 2)
 
-  indent = get_indent(application.firstChild, 2)
-
-  last = application.lastChild
-  if last is not None and last.nodeType != minidom.Node.TEXT_NODE:
-    last = None
-
-  if not find_child_with_attribute(application, 'meta-data', android_ns,
-                                   'name', logging_parent_key):
-    ul = doc.createElement('meta-data')
-    ul.setAttributeNS(android_ns, 'android:name', logging_parent_key)
-    ul.setAttributeNS(android_ns, 'android:value', logging_parent_value)
-    application.insertBefore(doc.createTextNode(indent), last)
-    application.insertBefore(ul, last)
     last = application.lastChild
+    if last is not None and last.nodeType != minidom.Node.TEXT_NODE:
+      last = None
 
-  # align the closing tag with the opening tag if it's not
-  # indented
-  if last and last.nodeType != minidom.Node.TEXT_NODE:
-    indent = get_indent(application.previousSibling, 1)
-    application.appendChild(doc.createTextNode(indent))
+    if not find_child_with_attribute(application, 'meta-data', android_ns,
+                                     'name', logging_parent_key):
+      ul = doc.createElement('meta-data')
+      ul.setAttributeNS(android_ns, 'android:name', logging_parent_key)
+      ul.setAttributeNS(android_ns, 'android:value', logging_parent_value)
+      application.insertBefore(doc.createTextNode(indent), last)
+      application.insertBefore(ul, last)
+      last = application.lastChild
+
+    # align the closing tag with the opening tag if it's not
+    # indented
+    if last and last.nodeType != minidom.Node.TEXT_NODE:
+      indent = get_indent(application.previousSibling, 1)
+      application.appendChild(doc.createTextNode(indent))
 
 
 def add_uses_libraries(doc, new_uses_libraries, required):
@@ -192,42 +160,32 @@
   """
 
   manifest = parse_manifest(doc)
-  elems = get_children_with_tag(manifest, 'application')
-  application = elems[0] if len(elems) == 1 else None
-  if len(elems) > 1:
-    raise RuntimeError('found multiple <application> tags')
-  elif not elems:
-    application = doc.createElement('application')
-    indent = get_indent(manifest.firstChild, 1)
-    first = manifest.firstChild
-    manifest.insertBefore(doc.createTextNode(indent), first)
-    manifest.insertBefore(application, first)
+  for application in get_or_create_applications(doc, manifest):
+    indent = get_indent(application.firstChild, 2)
 
-  indent = get_indent(application.firstChild, 2)
+    last = application.lastChild
+    if last is not None and last.nodeType != minidom.Node.TEXT_NODE:
+      last = None
 
-  last = application.lastChild
-  if last is not None and last.nodeType != minidom.Node.TEXT_NODE:
-    last = None
+    for name in new_uses_libraries:
+      if find_child_with_attribute(application, 'uses-library', android_ns,
+                                   'name', name) is not None:
+        # If the uses-library tag of the same 'name' attribute value exists,
+        # respect it.
+        continue
 
-  for name in new_uses_libraries:
-    if find_child_with_attribute(application, 'uses-library', android_ns,
-                                 'name', name) is not None:
-      # If the uses-library tag of the same 'name' attribute value exists,
-      # respect it.
-      continue
+      ul = doc.createElement('uses-library')
+      ul.setAttributeNS(android_ns, 'android:name', name)
+      ul.setAttributeNS(android_ns, 'android:required', str(required).lower())
 
-    ul = doc.createElement('uses-library')
-    ul.setAttributeNS(android_ns, 'android:name', name)
-    ul.setAttributeNS(android_ns, 'android:required', str(required).lower())
+      application.insertBefore(doc.createTextNode(indent), last)
+      application.insertBefore(ul, last)
 
-    application.insertBefore(doc.createTextNode(indent), last)
-    application.insertBefore(ul, last)
-
-  # align the closing tag with the opening tag if it's not
-  # indented
-  if application.lastChild.nodeType != minidom.Node.TEXT_NODE:
-    indent = get_indent(application.previousSibling, 1)
-    application.appendChild(doc.createTextNode(indent))
+    # align the closing tag with the opening tag if it's not
+    # indented
+    if application.lastChild.nodeType != minidom.Node.TEXT_NODE:
+      indent = get_indent(application.previousSibling, 1)
+      application.appendChild(doc.createTextNode(indent))
 
 
 def add_uses_non_sdk_api(doc):
@@ -240,111 +198,63 @@
   """
 
   manifest = parse_manifest(doc)
-  elems = get_children_with_tag(manifest, 'application')
-  application = elems[0] if len(elems) == 1 else None
-  if len(elems) > 1:
-    raise RuntimeError('found multiple <application> tags')
-  elif not elems:
-    application = doc.createElement('application')
-    indent = get_indent(manifest.firstChild, 1)
-    first = manifest.firstChild
-    manifest.insertBefore(doc.createTextNode(indent), first)
-    manifest.insertBefore(application, first)
-
-  attr = application.getAttributeNodeNS(android_ns, 'usesNonSdkApi')
-  if attr is None:
-    attr = doc.createAttributeNS(android_ns, 'android:usesNonSdkApi')
-    attr.value = 'true'
-    application.setAttributeNode(attr)
+  for application in get_or_create_applications(doc, manifest):
+    attr = application.getAttributeNodeNS(android_ns, 'usesNonSdkApi')
+    if attr is None:
+      attr = doc.createAttributeNS(android_ns, 'android:usesNonSdkApi')
+      attr.value = 'true'
+      application.setAttributeNode(attr)
 
 
 def add_use_embedded_dex(doc):
   manifest = parse_manifest(doc)
-  elems = get_children_with_tag(manifest, 'application')
-  application = elems[0] if len(elems) == 1 else None
-  if len(elems) > 1:
-    raise RuntimeError('found multiple <application> tags')
-  elif not elems:
-    application = doc.createElement('application')
-    indent = get_indent(manifest.firstChild, 1)
-    first = manifest.firstChild
-    manifest.insertBefore(doc.createTextNode(indent), first)
-    manifest.insertBefore(application, first)
-
-  attr = application.getAttributeNodeNS(android_ns, 'useEmbeddedDex')
-  if attr is None:
-    attr = doc.createAttributeNS(android_ns, 'android:useEmbeddedDex')
-    attr.value = 'true'
-    application.setAttributeNode(attr)
-  elif attr.value != 'true':
-    raise RuntimeError('existing attribute mismatches the option of --use-embedded-dex')
+  for application in get_or_create_applications(doc, manifest):
+    attr = application.getAttributeNodeNS(android_ns, 'useEmbeddedDex')
+    if attr is None:
+      attr = doc.createAttributeNS(android_ns, 'android:useEmbeddedDex')
+      attr.value = 'true'
+      application.setAttributeNode(attr)
+    elif attr.value != 'true':
+      raise RuntimeError('existing attribute mismatches the option of --use-embedded-dex')
 
 
 def add_extract_native_libs(doc, extract_native_libs):
   manifest = parse_manifest(doc)
-  elems = get_children_with_tag(manifest, 'application')
-  application = elems[0] if len(elems) == 1 else None
-  if len(elems) > 1:
-    raise RuntimeError('found multiple <application> tags')
-  elif not elems:
-    application = doc.createElement('application')
-    indent = get_indent(manifest.firstChild, 1)
-    first = manifest.firstChild
-    manifest.insertBefore(doc.createTextNode(indent), first)
-    manifest.insertBefore(application, first)
-
-  value = str(extract_native_libs).lower()
-  attr = application.getAttributeNodeNS(android_ns, 'extractNativeLibs')
-  if attr is None:
-    attr = doc.createAttributeNS(android_ns, 'android:extractNativeLibs')
-    attr.value = value
-    application.setAttributeNode(attr)
-  elif attr.value != value:
-    raise RuntimeError('existing attribute extractNativeLibs="%s" conflicts with --extract-native-libs="%s"' %
-                       (attr.value, value))
+  for application in get_or_create_applications(doc, manifest):
+    value = str(extract_native_libs).lower()
+    attr = application.getAttributeNodeNS(android_ns, 'extractNativeLibs')
+    if attr is None:
+      attr = doc.createAttributeNS(android_ns, 'android:extractNativeLibs')
+      attr.value = value
+      application.setAttributeNode(attr)
+    elif attr.value != value:
+      raise RuntimeError('existing attribute extractNativeLibs="%s" conflicts with --extract-native-libs="%s"' %
+                         (attr.value, value))
 
 
 def set_has_code_to_false(doc):
   manifest = parse_manifest(doc)
-  elems = get_children_with_tag(manifest, 'application')
-  application = elems[0] if len(elems) == 1 else None
-  if len(elems) > 1:
-    raise RuntimeError('found multiple <application> tags')
-  elif not elems:
-    application = doc.createElement('application')
-    indent = get_indent(manifest.firstChild, 1)
-    first = manifest.firstChild
-    manifest.insertBefore(doc.createTextNode(indent), first)
-    manifest.insertBefore(application, first)
+  for application in get_or_create_applications(doc, manifest):
+    attr = application.getAttributeNodeNS(android_ns, 'hasCode')
+    if attr is not None:
+      # Do nothing if the application already has a hasCode attribute.
+      continue
+    attr = doc.createAttributeNS(android_ns, 'android:hasCode')
+    attr.value = 'false'
+    application.setAttributeNode(attr)
 
-  attr = application.getAttributeNodeNS(android_ns, 'hasCode')
-  if attr is not None:
-    # Do nothing if the application already has a hasCode attribute.
-    return
-  attr = doc.createAttributeNS(android_ns, 'android:hasCode')
-  attr.value = 'false'
-  application.setAttributeNode(attr)
 
 def set_test_only_flag_to_true(doc):
   manifest = parse_manifest(doc)
-  elems = get_children_with_tag(manifest, 'application')
-  application = elems[0] if len(elems) == 1 else None
-  if len(elems) > 1:
-    raise RuntimeError('found multiple <application> tags')
-  elif not elems:
-    application = doc.createElement('application')
-    indent = get_indent(manifest.firstChild, 1)
-    first = manifest.firstChild
-    manifest.insertBefore(doc.createTextNode(indent), first)
-    manifest.insertBefore(application, first)
+  for application in get_or_create_applications(doc, manifest):
+    attr = application.getAttributeNodeNS(android_ns, 'testOnly')
+    if attr is not None:
+      # Do nothing If the application already has a testOnly attribute.
+      continue
+    attr = doc.createAttributeNS(android_ns, 'android:testOnly')
+    attr.value = 'true'
+    application.setAttributeNode(attr)
 
-  attr = application.getAttributeNodeNS(android_ns, 'testOnly')
-  if attr is not None:
-    # Do nothing If the application already has a testOnly attribute.
-    return
-  attr = doc.createAttributeNS(android_ns, 'android:testOnly')
-  attr.value = 'true'
-  application.setAttributeNode(attr)
 
 def set_max_sdk_version(doc, max_sdk_version):
   """Replace the maxSdkVersion attribute value for permission and
@@ -364,6 +274,7 @@
       if max_attr and max_attr.value == 'current':
         max_attr.value = max_sdk_version
 
+
 def override_placeholder_version(doc, new_version):
   """Replace the versionCode attribute value if it\'s currently
   set to the placeholder version of 0.
@@ -374,9 +285,10 @@
   """
   manifest = parse_manifest(doc)
   version = manifest.getAttribute("android:versionCode")
-  if (version == '0'):
+  if version == '0':
     manifest.setAttribute("android:versionCode", new_version)
 
+
 def main():
   """Program entry point."""
   try:
@@ -427,5 +339,6 @@
     print('error: ' + str(err), file=sys.stderr)
     sys.exit(-1)
 
+
 if __name__ == '__main__':
   main()
diff --git a/scripts/manifest_fixer_test.py b/scripts/manifest_fixer_test.py
index 0a62b10..e4d8dc3 100755
--- a/scripts/manifest_fixer_test.py
+++ b/scripts/manifest_fixer_test.py
@@ -20,12 +20,13 @@
 import sys
 import unittest
 from xml.dom import minidom
-import xml.etree.ElementTree as ET
+import xml.etree.ElementTree as ElementTree
 
 import manifest_fixer
 
 sys.dont_write_bytecode = True
 
+
 class CompareVersionGtTest(unittest.TestCase):
   """Unit tests for compare_version_gt function."""
 
@@ -69,25 +70,24 @@
       '%s'
       '</manifest>\n')
 
-  # pylint: disable=redefined-builtin
-  def uses_sdk(self, min=None, target=None, extra=''):
+  def uses_sdk(self, min_sdk=None, target_sdk=None, extra=''):
     attrs = ''
-    if min:
-      attrs += ' android:minSdkVersion="%s"' % (min)
-    if target:
-      attrs += ' android:targetSdkVersion="%s"' % (target)
+    if min_sdk:
+      attrs += ' android:minSdkVersion="%s"' % min_sdk
+    if target_sdk:
+      attrs += ' android:targetSdkVersion="%s"' % target_sdk
     if extra:
       attrs += ' ' + extra
-    return '    <uses-sdk%s/>\n' % (attrs)
+    return '    <uses-sdk%s/>\n' % attrs
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def test_no_uses_sdk(self):
     """Tests inserting a uses-sdk element into a manifest."""
 
     manifest_input = self.manifest_tmpl % ''
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='28')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='28')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '28', False)
     self.assert_xml_equal(output, expected)
 
@@ -95,7 +95,7 @@
     """Tests inserting a minSdkVersion attribute into a uses-sdk element."""
 
     manifest_input = self.manifest_tmpl % '    <uses-sdk extra="foo"/>\n'
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='28',
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='28',
                                                   extra='extra="foo"')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '28', False)
     self.assert_xml_equal(output, expected)
@@ -103,64 +103,64 @@
   def test_raise_min(self):
     """Tests inserting a minSdkVersion attribute into a uses-sdk element."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='27')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='28')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='27')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='28')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '28', False)
     self.assert_xml_equal(output, expected)
 
   def test_raise(self):
     """Tests raising a minSdkVersion attribute."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='27')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='28')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='27')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='28')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '28', False)
     self.assert_xml_equal(output, expected)
 
   def test_no_raise_min(self):
     """Tests a minSdkVersion that doesn't need raising."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='28')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='27')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='28')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='27')
     output = self.raise_min_sdk_version_test(manifest_input, '27', '27', False)
     self.assert_xml_equal(output, expected)
 
   def test_raise_codename(self):
     """Tests raising a minSdkVersion attribute to a codename."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='28')
-    expected = self.manifest_tmpl % self.uses_sdk(min='P', target='P')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='28')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='P', target_sdk='P')
     output = self.raise_min_sdk_version_test(manifest_input, 'P', 'P', False)
     self.assert_xml_equal(output, expected)
 
   def test_no_raise_codename(self):
     """Tests a minSdkVersion codename that doesn't need raising."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='P')
-    expected = self.manifest_tmpl % self.uses_sdk(min='P', target='28')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='P')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='P', target_sdk='28')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '28', False)
     self.assert_xml_equal(output, expected)
 
   def test_target(self):
     """Tests an existing targetSdkVersion is preserved."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='26', target='27')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='27')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='26', target_sdk='27')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='27')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '29', False)
     self.assert_xml_equal(output, expected)
 
   def test_no_target(self):
     """Tests inserting targetSdkVersion when minSdkVersion exists."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='27')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='29')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='27')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='29')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '29', False)
     self.assert_xml_equal(output, expected)
 
   def test_target_no_min(self):
     """"Tests inserting targetSdkVersion when minSdkVersion exists."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(target='27')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='27')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(target_sdk='27')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='27')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '29', False)
     self.assert_xml_equal(output, expected)
 
@@ -168,23 +168,23 @@
     """Tests inserting targetSdkVersion when minSdkVersion does not exist."""
 
     manifest_input = self.manifest_tmpl % ''
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='29')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='29')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '29', False)
     self.assert_xml_equal(output, expected)
 
   def test_library_no_target(self):
     """Tests inserting targetSdkVersion when minSdkVersion exists."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(min='27')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='16')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(min_sdk='27')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='16')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '29', True)
     self.assert_xml_equal(output, expected)
 
   def test_library_target_no_min(self):
     """Tests inserting targetSdkVersion when minSdkVersion exists."""
 
-    manifest_input = self.manifest_tmpl % self.uses_sdk(target='27')
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='27')
+    manifest_input = self.manifest_tmpl % self.uses_sdk(target_sdk='27')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='27')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '29', True)
     self.assert_xml_equal(output, expected)
 
@@ -192,7 +192,7 @@
     """Tests inserting targetSdkVersion when minSdkVersion does not exist."""
 
     manifest_input = self.manifest_tmpl % ''
-    expected = self.manifest_tmpl % self.uses_sdk(min='28', target='16')
+    expected = self.manifest_tmpl % self.uses_sdk(min_sdk='28', target_sdk='16')
     output = self.raise_min_sdk_version_test(manifest_input, '28', '29', True)
     self.assert_xml_equal(output, expected)
 
@@ -228,12 +228,24 @@
 
     self.assert_xml_equal(output, expected)
 
+  def test_multiple_uses_sdks(self):
+    """Tests a manifest that contains multiple uses_sdks elements."""
+
+    manifest_input = self.manifest_tmpl % (
+        '    <uses-sdk android:featureFlag="foo" android:minSdkVersion="21" />\n'
+        '    <uses-sdk android:featureFlag="!foo" android:minSdkVersion="22" />\n')
+    expected = self.manifest_tmpl % (
+      '    <uses-sdk android:featureFlag="foo" android:minSdkVersion="28" android:targetSdkVersion="28" />\n'
+      '    <uses-sdk android:featureFlag="!foo" android:minSdkVersion="28" android:targetSdkVersion="28" />\n')
+
+    output = self.raise_min_sdk_version_test(manifest_input, '28', '28', False)
+    self.assert_xml_equal(output, expected)
 
 class AddLoggingParentTest(unittest.TestCase):
   """Unit tests for add_logging_parent function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def add_logging_parent_test(self, input_manifest, logging_parent=None):
     doc = minidom.parseString(input_manifest)
@@ -253,8 +265,8 @@
     attrs = ''
     if logging_parent:
       meta_text = ('<meta-data android:name="android.content.pm.LOGGING_PARENT" '
-                   'android:value="%s"/>\n') % (logging_parent)
-      attrs += '    <application>\n        %s    </application>\n' % (meta_text)
+                   'android:value="%s"/>\n') % logging_parent
+      attrs += '    <application>\n        %s    </application>\n' % meta_text
 
     return attrs
 
@@ -277,7 +289,7 @@
   """Unit tests for add_uses_libraries function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest, new_uses_libraries):
     doc = minidom.parseString(input_manifest)
@@ -289,18 +301,16 @@
   manifest_tmpl = (
       '<?xml version="1.0" encoding="utf-8"?>\n'
       '<manifest xmlns:android="http://schemas.android.com/apk/res/android">\n'
-      '    <application>\n'
       '%s'
-      '    </application>\n'
       '</manifest>\n')
 
   def uses_libraries(self, name_required_pairs):
-    ret = ''
+    ret = '    <application>\n'
     for name, required in name_required_pairs:
       ret += (
           '        <uses-library android:name="%s" android:required="%s"/>\n'
       ) % (name, required)
-
+    ret += '    </application>\n'
     return ret
 
   def test_empty(self):
@@ -361,12 +371,23 @@
     output = self.run_test(manifest_input, ['foo', 'bar'])
     self.assert_xml_equal(output, expected)
 
+  def test_multiple_application(self):
+    """When there are multiple applications, the libs are added to each."""
+    manifest_input = self.manifest_tmpl % (
+            self.uses_libraries([('foo', 'false')]) +
+            self.uses_libraries([('bar', 'false')]))
+    expected = self.manifest_tmpl % (
+            self.uses_libraries([('foo', 'false'), ('bar', 'true')]) +
+            self.uses_libraries([('bar', 'false'), ('foo', 'true')]))
+    output = self.run_test(manifest_input, ['foo', 'bar'])
+    self.assert_xml_equal(output, expected)
+
 
 class AddUsesNonSdkApiTest(unittest.TestCase):
   """Unit tests for add_uses_libraries function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest):
     doc = minidom.parseString(input_manifest)
@@ -378,11 +399,11 @@
   manifest_tmpl = (
       '<?xml version="1.0" encoding="utf-8"?>\n'
       '<manifest xmlns:android="http://schemas.android.com/apk/res/android">\n'
-      '    <application%s/>\n'
+      '    %s\n'
       '</manifest>\n')
 
   def uses_non_sdk_api(self, value):
-    return ' android:usesNonSdkApi="true"' if value else ''
+    return '<application %s/>' % ('android:usesNonSdkApi="true"' if value else '')
 
   def test_set_true(self):
     """Empty new_uses_libraries must not touch the manifest."""
@@ -398,12 +419,19 @@
     output = self.run_test(manifest_input)
     self.assert_xml_equal(output, expected)
 
+  def test_multiple_applications(self):
+    """new_uses_libraries must be added to all applications."""
+    manifest_input = self.manifest_tmpl % (self.uses_non_sdk_api(True) +  self.uses_non_sdk_api(False))
+    expected = self.manifest_tmpl % (self.uses_non_sdk_api(True) +  self.uses_non_sdk_api(True))
+    output = self.run_test(manifest_input)
+    self.assert_xml_equal(output, expected)
+
 
 class UseEmbeddedDexTest(unittest.TestCase):
   """Unit tests for add_use_embedded_dex function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest):
     doc = minidom.parseString(input_manifest)
@@ -415,14 +443,14 @@
   manifest_tmpl = (
       '<?xml version="1.0" encoding="utf-8"?>\n'
       '<manifest xmlns:android="http://schemas.android.com/apk/res/android">\n'
-      '    <application%s/>\n'
+      '    %s\n'
       '</manifest>\n')
 
   def use_embedded_dex(self, value):
-    return ' android:useEmbeddedDex="%s"' % value
+    return '<application android:useEmbeddedDex="%s" />' % value
 
   def test_manifest_with_undeclared_preference(self):
-    manifest_input = self.manifest_tmpl % ''
+    manifest_input = self.manifest_tmpl % '<application/>'
     expected = self.manifest_tmpl % self.use_embedded_dex('true')
     output = self.run_test(manifest_input)
     self.assert_xml_equal(output, expected)
@@ -437,12 +465,24 @@
     manifest_input = self.manifest_tmpl % self.use_embedded_dex('false')
     self.assertRaises(RuntimeError, self.run_test, manifest_input)
 
+  def test_multiple_applications(self):
+    manifest_input = self.manifest_tmpl % (
+        self.use_embedded_dex('true') +
+        '<application/>'
+    )
+    expected = self.manifest_tmpl % (
+        self.use_embedded_dex('true') +
+        self.use_embedded_dex('true')
+    )
+    output = self.run_test(manifest_input)
+    self.assert_xml_equal(output, expected)
+
 
 class AddExtractNativeLibsTest(unittest.TestCase):
   """Unit tests for add_extract_native_libs function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest, value):
     doc = minidom.parseString(input_manifest)
@@ -454,20 +494,20 @@
   manifest_tmpl = (
       '<?xml version="1.0" encoding="utf-8"?>\n'
       '<manifest xmlns:android="http://schemas.android.com/apk/res/android">\n'
-      '    <application%s/>\n'
+      '    %s\n'
       '</manifest>\n')
 
   def extract_native_libs(self, value):
-    return ' android:extractNativeLibs="%s"' % value
+    return '<application android:extractNativeLibs="%s" />' % value
 
   def test_set_true(self):
-    manifest_input = self.manifest_tmpl % ''
+    manifest_input = self.manifest_tmpl % '<application/>'
     expected = self.manifest_tmpl % self.extract_native_libs('true')
     output = self.run_test(manifest_input, True)
     self.assert_xml_equal(output, expected)
 
   def test_set_false(self):
-    manifest_input = self.manifest_tmpl % ''
+    manifest_input = self.manifest_tmpl % '<application/>'
     expected = self.manifest_tmpl % self.extract_native_libs('false')
     output = self.run_test(manifest_input, False)
     self.assert_xml_equal(output, expected)
@@ -482,12 +522,18 @@
     manifest_input = self.manifest_tmpl % self.extract_native_libs('true')
     self.assertRaises(RuntimeError, self.run_test, manifest_input, False)
 
+  def test_multiple_applications(self):
+    manifest_input = self.manifest_tmpl % (self.extract_native_libs('true') + '<application/>')
+    expected = self.manifest_tmpl % (self.extract_native_libs('true') + self.extract_native_libs('true'))
+    output = self.run_test(manifest_input, True)
+    self.assert_xml_equal(output, expected)
+
 
 class AddNoCodeApplicationTest(unittest.TestCase):
   """Unit tests for set_has_code_to_false function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest):
     doc = minidom.parseString(input_manifest)
@@ -515,7 +561,7 @@
     self.assert_xml_equal(output, expected)
 
   def test_has_application_has_code_false(self):
-    """ Do nothing if there's already an application elemeent. """
+    """ Do nothing if there's already an application element. """
     manifest_input = self.manifest_tmpl % '    <application android:hasCode="false"/>\n'
     output = self.run_test(manifest_input)
     self.assert_xml_equal(output, manifest_input)
@@ -527,12 +573,25 @@
     output = self.run_test(manifest_input)
     self.assert_xml_equal(output, manifest_input)
 
+  def test_multiple_applications(self):
+    """ Apply to all applications  """
+    manifest_input = self.manifest_tmpl % (
+        '    <application android:hasCode="true" />\n' +
+        '    <application android:hasCode="false" />\n' +
+        '    <application/>\n')
+    expected = self.manifest_tmpl % (
+        '    <application android:hasCode="true" />\n' +
+        '    <application android:hasCode="false" />\n' +
+        '    <application android:hasCode="false" />\n')
+    output = self.run_test(manifest_input)
+    self.assert_xml_equal(output, expected)
+
 
 class AddTestOnlyApplicationTest(unittest.TestCase):
   """Unit tests for set_test_only_flag_to_true function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest):
     doc = minidom.parseString(input_manifest)
@@ -571,12 +630,26 @@
     output = self.run_test(manifest_input)
     self.assert_xml_equal(output, manifest_input)
 
+  def test_multiple_applications(self):
+    manifest_input = self.manifest_tmpl % (
+        '    <application android:testOnly="true" />\n' +
+        '    <application android:testOnly="false" />\n' +
+        '    <application/>\n'
+    )
+    expected = self.manifest_tmpl % (
+        '    <application android:testOnly="true" />\n' +
+        '    <application android:testOnly="false" />\n' +
+        '    <application android:testOnly="true" />\n'
+    )
+    output = self.run_test(manifest_input)
+    self.assert_xml_equal(output, expected)
+
 
 class SetMaxSdkVersionTest(unittest.TestCase):
   """Unit tests for set_max_sdk_version function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest, max_sdk_version):
     doc = minidom.parseString(input_manifest)
@@ -591,15 +664,15 @@
       '%s'
       '</manifest>\n')
 
-  def permission(self, max=None):
-    if max is None:
+  def permission(self, max_sdk=None):
+    if max_sdk is None:
       return '   <permission/>'
-    return '    <permission android:maxSdkVersion="%s"/>\n' % max
+    return '    <permission android:maxSdkVersion="%s"/>\n' % max_sdk
 
-  def uses_permission(self, max=None):
-    if max is None:
+  def uses_permission(self, max_sdk=None):
+    if max_sdk is None:
       return '   <uses-permission/>'
-    return '    <uses-permission android:maxSdkVersion="%s"/>\n' % max
+    return '    <uses-permission android:maxSdkVersion="%s"/>\n' % max_sdk
 
   def test_permission_no_max_sdk_version(self):
     """Tests if permission has no maxSdkVersion attribute"""
@@ -643,11 +716,12 @@
     output = self.run_test(manifest_input, '9000')
     self.assert_xml_equal(output, expected)
 
+
 class OverrideDefaultVersionTest(unittest.TestCase):
   """Unit tests for override_default_version function."""
 
   def assert_xml_equal(self, output, expected):
-    self.assertEqual(ET.canonicalize(output), ET.canonicalize(expected))
+    self.assertEqual(ElementTree.canonicalize(output), ElementTree.canonicalize(expected))
 
   def run_test(self, input_manifest, version):
     doc = minidom.parseString(input_manifest)
diff --git a/sdk/bootclasspath_fragment_sdk_test.go b/sdk/bootclasspath_fragment_sdk_test.go
index 8b994eb..39c8123 100644
--- a/sdk/bootclasspath_fragment_sdk_test.go
+++ b/sdk/bootclasspath_fragment_sdk_test.go
@@ -204,7 +204,19 @@
 .intermediates/mysdk/common_os/empty -> java_boot_libs/snapshot/jars/are/invalid/core1.jar
 .intermediates/mysdk/common_os/empty -> java_boot_libs/snapshot/jars/are/invalid/core2.jar
 		`),
-		snapshotTestPreparer(checkSnapshotWithoutSource, preparerForSnapshot),
+		snapshotTestPreparer(checkSnapshotWithoutSource, android.GroupFixturePreparers(
+			preparerForSnapshot,
+			// Flag ART prebuilts
+			android.FixtureMergeMockFs(android.MockFS{
+				"apex_contributions/Android.bp": []byte(`
+				apex_contributions {
+					name: "prebuilt_art_contributions",
+					contents: ["prebuilt_com.android.art"],
+					api_domain: "com.android.art",
+				}
+			`)}),
+			android.PrepareForTestWithBuildFlag("RELEASE_APEX_CONTRIBUTIONS_ART", "prebuilt_art_contributions"),
+		)),
 
 		// Check the behavior of the snapshot without the source.
 		snapshotTestChecker(checkSnapshotWithoutSource, func(t *testing.T, result *android.TestResult) {
@@ -212,8 +224,8 @@
 			checkBootJarsPackageCheckRule(t, result,
 				append(
 					[]string{
-						"out/soong/.intermediates/prebuilts/apex/prebuilt_com.android.art.deapexer/android_common/deapexer/javalib/core1.jar",
-						"out/soong/.intermediates/prebuilts/apex/prebuilt_com.android.art.deapexer/android_common/deapexer/javalib/core2.jar",
+						"out/soong/.intermediates/prebuilts/apex/com.android.art/android_common_com.android.art/deapexer/javalib/core1.jar",
+						"out/soong/.intermediates/prebuilts/apex/com.android.art/android_common_com.android.art/deapexer/javalib/core2.jar",
 						"out/soong/.intermediates/default/java/framework/android_common/aligned/framework.jar",
 					},
 					java.ApexBootJarDexJarPaths...,
diff --git a/soong_ui.bash b/soong_ui.bash
index 7737880..2f688ef 100755
--- a/soong_ui.bash
+++ b/soong_ui.bash
@@ -26,6 +26,7 @@
 
 source $(cd $(dirname $BASH_SOURCE) &> /dev/null && pwd)/../make/shell_utils.sh
 require_top
+setup_cog_env_if_needed
 
 # Save the current PWD for use in soong_ui
 export ORIGINAL_PWD=${PWD}
diff --git a/sysprop/Android.bp b/sysprop/Android.bp
index a00a5e4..22cba3b 100644
--- a/sysprop/Android.bp
+++ b/sysprop/Android.bp
@@ -21,4 +21,6 @@
         "sysprop_test.go",
     ],
     pluginFor: ["soong_build"],
+    // Used by plugins
+    visibility: ["//visibility:public"],
 }
diff --git a/testing/code_metadata_internal_proto/Android.bp b/testing/code_metadata_internal_proto/Android.bp
index a534cc2..396e44f 100644
--- a/testing/code_metadata_internal_proto/Android.bp
+++ b/testing/code_metadata_internal_proto/Android.bp
@@ -20,10 +20,14 @@
     name: "soong-testing-code_metadata_internal_proto",
     pkgPath: "android/soong/testing/code_metadata_internal_proto",
     deps: [
-            "golang-protobuf-reflect-protoreflect",
-            "golang-protobuf-runtime-protoimpl",
-        ],
+        "golang-protobuf-reflect-protoreflect",
+        "golang-protobuf-runtime-protoimpl",
+    ],
     srcs: [
         "code_metadata_internal.pb.go",
     ],
+    visibility: [
+        "//build/make/tools/metadata",
+        "//build/soong:__subpackages__",
+    ],
 }
diff --git a/testing/code_metadata_proto/Android.bp b/testing/code_metadata_proto/Android.bp
index f07efff..ae41d4a 100644
--- a/testing/code_metadata_proto/Android.bp
+++ b/testing/code_metadata_proto/Android.bp
@@ -26,6 +26,7 @@
     srcs: [
         "code_metadata.pb.go",
     ],
+    visibility: ["//build/make/tools/metadata"],
 }
 
 python_library_host {
@@ -40,4 +41,5 @@
     proto: {
         canonical_path_from_root: false,
     },
+    visibility: ["//tools/asuite/team_build_scripts"],
 }
diff --git a/testing/test_spec_proto/Android.bp b/testing/test_spec_proto/Android.bp
index d5ad70b..1070d1a 100644
--- a/testing/test_spec_proto/Android.bp
+++ b/testing/test_spec_proto/Android.bp
@@ -26,6 +26,11 @@
     srcs: [
         "test_spec.pb.go",
     ],
+    visibility: [
+        "//build/make/tools/metadata",
+        "//build/soong:__subpackages__",
+        "//vendor:__subpackages__",
+    ],
 }
 
 python_library_host {
@@ -40,4 +45,5 @@
     proto: {
         canonical_path_from_root: false,
     },
+    visibility: ["//tools/asuite/team_build_scripts"],
 }
diff --git a/tests/build_action_caching_test.sh b/tests/build_action_caching_test.sh
new file mode 100755
index 0000000..8ecd037
--- /dev/null
+++ b/tests/build_action_caching_test.sh
@@ -0,0 +1,190 @@
+#!/bin/bash -u
+
+set -o pipefail
+
+# Test that the mk and ninja files generated by Soong don't change if some
+# incremental modules are restored from cache.
+
+OUTPUT_DIR="$(mktemp -d tmp.XXXXXX)"
+
+echo ${OUTPUT_DIR}
+
+function cleanup {
+  rm -rf "${OUTPUT_DIR}"
+}
+trap cleanup EXIT
+
+function run_soong_build {
+  USE_RBE=false TARGET_PRODUCT=aosp_arm TARGET_RELEASE=trunk_staging TARGET_BUILD_VARIANT=userdebug build/soong/soong_ui.bash --make-mode "$@" nothing
+}
+
+function run_soong_clean {
+  build/soong/soong_ui.bash --make-mode clean
+}
+
+function assert_files_equal {
+  if [ $# -ne 2 ]; then
+    echo "Usage: assert_files_equal file1 file2"
+    exit 1
+  fi
+
+  if ! cmp -s "$1" "$2"; then
+    echo "Files are different: $1 $2"
+    exit 1
+  fi
+}
+
+function compare_mtimes() {
+  if [ $# -ne 2 ]; then
+    echo "Usage: compare_mtimes file1 file2"
+    exit 1
+  fi
+
+  file1_mtime=$(stat -c '%Y' $1)
+  file2_mtime=$(stat -c '%Y' $2)
+
+  if [ "$file1_mtime" -eq "$file2_mtime" ]; then
+      return 1
+  else
+      return 0
+  fi
+}
+
+function test_build_action_restoring() {
+  local test_dir="${OUTPUT_DIR}/test_build_action_restoring"
+  mkdir -p ${test_dir}
+  run_soong_clean
+  cat > ${test_dir}/Android.bp <<'EOF'
+python_binary_host {
+  name: "my_little_binary_host",
+  srcs: ["my_little_binary_host.py"],
+}
+EOF
+  touch ${test_dir}/my_little_binary_host.py
+  run_soong_build --incremental-build-actions
+  local dir_before="${test_dir}/before"
+  mkdir -p ${dir_before}
+  cp -pr out/soong/build_aosp_arm_ninja_incremental out/soong/*.mk out/soong/build.aosp_arm*.ninja ${test_dir}/before
+  # add a comment to the bp file, this should force a new analysis but no module
+  # should be really impacted, so all the incremental modules should be skipped.
+  cat >> ${test_dir}/Android.bp <<'EOF'
+// new comments
+EOF
+  run_soong_build --incremental-build-actions
+  local dir_after="${test_dir}/after"
+  mkdir -p ${dir_after}
+  cp -pr out/soong/build_aosp_arm_ninja_incremental out/soong/*.mk out/soong/build.aosp_arm*.ninja ${test_dir}/after
+
+  compare_incremental_files $dir_before $dir_after
+  rm -rf "$test_dir"
+  echo "test_build_action_restoring test passed"
+}
+
+function test_incremental_build_parity() {
+  local test_dir="${OUTPUT_DIR}/test_incremental_build_parity"
+  run_soong_clean
+  run_soong_build
+  local dir_before="${test_dir}/before"
+  mkdir -p ${dir_before}
+  cp -pr out/soong/*.mk out/soong/build.aosp_arm*.ninja ${test_dir}/before
+
+  # Now run clean build with incremental enabled
+  run_soong_clean
+  run_soong_build --incremental-build-actions
+  local dir_after="${test_dir}/after"
+  mkdir -p ${dir_after}
+  cp -pr out/soong/build_aosp_arm_ninja_incremental out/soong/*.mk out/soong/build.aosp_arm*.ninja ${test_dir}/after
+
+  compare_files_parity $dir_before $dir_after
+  rm -rf "$test_dir"
+  echo "test_incremental_build_parity test passed"
+}
+
+function compare_files_parity() {
+  local dir_before=$1; shift
+  local dir_after=$1; shift
+  count=0
+  for file_before in ${dir_before}/*.mk; do
+    file_after="${dir_after}/$(basename "$file_before")"
+    assert_files_equal $file_before $file_after
+    ((count++))
+  done
+  echo "Compared $count mk files"
+
+  combined_before_file="${dir_before}/combined_files.ninja"
+  count=0
+  for file in ${dir_before}/build.aosp_arm.*.ninja; do
+    cat $file >> $combined_before_file
+    ((count++))
+  done
+  echo "Combined $count ninja files from normal build"
+
+  combined_after_file="${dir_after}/combined_files.ninja"
+  count=0
+  for file in ${dir_after}/build.aosp_arm.*.ninja; do
+    cat $file >> $combined_after_file
+    ((count++))
+  done
+  echo "Combined $count ninja files from incremental build"
+
+  combined_incremental_ninjas="${dir_after}/combined_incremental_files.ninja"
+  count=0
+  for file in ${dir_after}/build_aosp_arm_ninja_incremental/*.ninja; do
+    cat $file >> $combined_incremental_ninjas
+    ((count++))
+  done
+  echo "Combined $count incremental ninja files"
+
+  cat $combined_incremental_ninjas >> $combined_after_file
+  sort $combined_after_file -o $combined_after_file
+  sort $combined_before_file -o $combined_before_file
+  assert_files_equal $combined_before_file $combined_after_file
+}
+
+function compare_incremental_files() {
+  local dir_before=$1; shift
+  local dir_after=$1; shift
+  count=0
+  for file_before in ${dir_before}/*.ninja; do
+    file_after="${dir_after}/$(basename "$file_before")"
+    assert_files_equal $file_before $file_after
+    compare_mtimes $file_before $file_after
+    if [ $? -ne 0 ]; then
+      echo "Files have identical mtime: $file_before $file_after"
+      exit 1
+    fi
+    ((count++))
+  done
+  echo "Compared $count ninja files"
+
+  count=0
+  for file_before in ${dir_before}/*.mk; do
+    file_after="${dir_after}/$(basename "$file_before")"
+    assert_files_equal $file_before $file_after
+    compare_mtimes $file_before $file_after
+    # mk files shouldn't be regenerated
+    if [ $? -ne 1 ]; then
+      echo "Files have different mtimes: $file_before $file_after"
+      exit 1
+    fi
+    ((count++))
+  done
+  echo "Compared $count mk files"
+
+  count=0
+  for file_before in ${dir_before}/build_aosp_arm_ninja_incremental/*.ninja; do
+    file_after="${dir_after}/build_aosp_arm_ninja_incremental/$(basename "$file_before")"
+    assert_files_equal $file_before $file_after
+    compare_mtimes $file_before $file_after
+    # ninja files of skipped modules shouldn't be regenerated
+    if [ $? -ne 1 ]; then
+      echo "Files have different mtimes: $file_before $file_after"
+      exit 1
+    fi
+    ((count++))
+  done
+  echo "Compared $count incremental ninja files"
+}
+
+test_incremental_build_parity
+test_build_action_restoring
diff --git a/tradefed_modules/test_module_config.go b/tradefed_modules/test_module_config.go
index ef18131..7a04c19 100644
--- a/tradefed_modules/test_module_config.go
+++ b/tradefed_modules/test_module_config.go
@@ -242,6 +242,7 @@
 
 				entries.SetBoolIfTrue("LOCAL_IS_UNIT_TEST", m.provider.IsUnitTest)
 				entries.AddCompatibilityTestSuites(m.tradefedProperties.Test_suites...)
+				entries.AddStrings("LOCAL_HOST_REQUIRED_MODULES", m.provider.HostRequiredModuleNames...)
 
 				// The app_prebuilt_internal.mk files try create a copy of the OutputFile as an .apk.
 				// Normally, this copies the "package.apk" from the intermediate directory here.
diff --git a/tradefed_modules/test_module_config_test.go b/tradefed_modules/test_module_config_test.go
index 1510a03..f76a152 100644
--- a/tradefed_modules/test_module_config_test.go
+++ b/tradefed_modules/test_module_config_test.go
@@ -40,6 +40,7 @@
 			name: "base",
 			sdk_version: "current",
                         data: [":HelperApp", "data/testfile"],
+                        host_required: ["other-module"],
                         test_suites: ["general-tests"],
 		}
 
@@ -80,6 +81,7 @@
 	android.AssertArrayString(t, "", entries.EntryMap["LOCAL_COMPATIBILITY_SUPPORT_FILES"], []string{})
 
 	android.AssertArrayString(t, "", entries.EntryMap["LOCAL_REQUIRED_MODULES"], []string{"base"})
+	android.AssertArrayString(t, "", entries.EntryMap["LOCAL_HOST_REQUIRED_MODULES"], []string{"other-module"})
 	android.AssertArrayString(t, "", entries.EntryMap["LOCAL_CERTIFICATE"], []string{"build/make/target/product/security/testkey.x509.pem"})
 	android.AssertStringEquals(t, "", entries.Class, "APPS")
 
diff --git a/ui/build/config.go b/ui/build/config.go
index f02222e..851a22a 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -54,6 +54,16 @@
 	rbeRandPrefix = rand.Intn(1000)
 }
 
+// Which builder are we using?
+type ninjaCommandType = int
+
+const (
+	_ = iota
+	NINJA_NINJA
+	NINJA_N2
+	NINJA_SISO
+)
+
 type Config struct{ *configImpl }
 
 type configImpl struct {
@@ -123,9 +133,8 @@
 	// could consider merging them.
 	moduleDebugFile string
 
-	// Whether to use n2 instead of ninja.  This is controlled with the
-	// environment variable SOONG_USE_N2
-	useN2 bool
+	// Which builder are we using
+	ninjaCommand ninjaCommandType
 }
 
 type NinjaWeightListSource uint
@@ -288,8 +297,16 @@
 		ret.moduleDebugFile, _ = filepath.Abs(shared.JoinPath(ret.SoongOutDir(), "soong-debug-info.json"))
 	}
 
-	if os.Getenv("SOONG_USE_N2") == "true" {
-		ret.useN2 = true
+	ret.ninjaCommand = NINJA_NINJA
+	switch os.Getenv("SOONG_NINJA") {
+	case "n2":
+		ret.ninjaCommand = NINJA_N2
+	case "siso":
+		ret.ninjaCommand = NINJA_SISO
+	default:
+		if os.Getenv("SOONG_USE_N2") == "true" {
+			ret.ninjaCommand = NINJA_N2
+		}
 	}
 
 	ret.environ.Unset(
@@ -349,7 +366,8 @@
 		// We read it here already, don't let others share in the fun
 		"GENERATE_SOONG_DEBUG",
 
-		// Use config.useN2 instead.
+		// Use config.ninjaCommand instead.
+		"SOONG_NINJA",
 		"SOONG_USE_N2",
 	)
 
@@ -1375,8 +1393,10 @@
 	// Perform a log directory cleanup only when the log directory
 	// is auto created by the build rather than user-specified.
 	for _, f := range []string{"RBE_proxy_log_dir", "FLAG_output_dir"} {
-		if _, ok := c.environ.Get(f); ok {
-			return false
+		if v, ok := c.environ.Get(f); ok {
+			if v != c.rbeTmpDir() {
+				return false
+			}
 		}
 	}
 	return true
@@ -1641,6 +1661,12 @@
 	return strings.ReplaceAll(path, "/linux-x86/", "/linux_musl-x86/")
 }
 
+func (c *configImpl) SisoBin() string {
+	path := c.PrebuiltBuildTool("siso")
+	// Use musl instead of glibc because glibc on the build server is old and has bugs
+	return strings.ReplaceAll(path, "/linux-x86/", "/linux_musl-x86/")
+}
+
 func (c *configImpl) PrebuiltBuildTool(name string) string {
 	if v, ok := c.environ.Get("SANITIZE_HOST"); ok {
 		if sanitize := strings.Fields(v); inList("address", sanitize) {
diff --git a/ui/build/ninja.go b/ui/build/ninja.go
index 4e3e544..def0783 100644
--- a/ui/build/ninja.go
+++ b/ui/build/ninja.go
@@ -49,14 +49,10 @@
 	nr := status.NewNinjaReader(ctx, ctx.Status.StartTool(), fifo)
 	defer nr.Close()
 
-	executable := config.NinjaBin()
-	args := []string{
-		"-d", "keepdepfile",
-		"-d", "keeprsp",
-		"-d", "stats",
-		"--frontend_file", fifo,
-	}
-	if config.useN2 {
+	var executable string
+	var args []string
+	switch config.ninjaCommand {
+	case NINJA_N2:
 		executable = config.N2Bin()
 		args = []string{
 			"-d", "trace",
@@ -66,8 +62,31 @@
 			//"-d", "stats",
 			"--frontend-file", fifo,
 		}
+	case NINJA_SISO:
+		executable = config.SisoBin()
+		args = []string{
+			"ninja",
+			"--log_dir", config.SoongOutDir(),
+			// TODO: implement these features, or remove them.
+			//"-d", "trace",
+			//"-d", "keepdepfile",
+			//"-d", "keeprsp",
+			//"-d", "stats",
+			//"--frontend-file", fifo,
+		}
+	default:
+		// NINJA_NINJA is the default.
+		executable = config.NinjaBin()
+		args = []string{
+			"-d", "keepdepfile",
+			"-d", "keeprsp",
+			"-d", "stats",
+			"--frontend_file", fifo,
+			"-o", "usesphonyoutputs=yes",
+			"-w", "dupbuild=err",
+			"-w", "missingdepfile=err",
+		}
 	}
-
 	args = append(args, config.NinjaArgs()...)
 
 	var parallel int
@@ -83,17 +102,10 @@
 
 	args = append(args, "-f", config.CombinedNinjaFile())
 
-	if !config.useN2 {
-		args = append(args,
-			"-o", "usesphonyoutputs=yes",
-			"-w", "dupbuild=err",
-			"-w", "missingdepfile=err")
-	}
-
 	if !config.BuildBrokenMissingOutputs() {
 		// Missing outputs will be treated as errors.
 		// BUILD_BROKEN_MISSING_OUTPUTS can be used to bypass this check.
-		if !config.useN2 {
+		if config.ninjaCommand != NINJA_N2 {
 			args = append(args,
 				"-w", "missingoutfile=err",
 			)
@@ -110,21 +122,18 @@
 		cmd.Environment.AppendFromKati(config.KatiEnvFile())
 	}
 
-	switch config.NinjaWeightListSource() {
-	case NINJA_LOG:
-		if !config.useN2 {
+	// TODO(b/346806126): implement this for the other ninjaCommand values.
+	if config.ninjaCommand == NINJA_NINJA {
+		switch config.NinjaWeightListSource() {
+		case NINJA_LOG:
 			cmd.Args = append(cmd.Args, "-o", "usesninjalogasweightlist=yes")
-		}
-	case EVENLY_DISTRIBUTED:
-		// pass empty weight list means ninja considers every tasks's weight as 1(default value).
-		if !config.useN2 {
+		case EVENLY_DISTRIBUTED:
+			// pass empty weight list means ninja considers every tasks's weight as 1(default value).
 			cmd.Args = append(cmd.Args, "-o", "usesweightlist=/dev/null")
-		}
-	case EXTERNAL_FILE:
-		fallthrough
-	case HINT_FROM_SOONG:
-		// The weight list is already copied/generated.
-		if !config.useN2 {
+		case EXTERNAL_FILE:
+			fallthrough
+		case HINT_FROM_SOONG:
+			// The weight list is already copied/generated.
 			ninjaWeightListPath := filepath.Join(config.OutDir(), ninjaWeightListFileName)
 			cmd.Args = append(cmd.Args, "-o", "usesweightlist="+ninjaWeightListPath)
 		}
@@ -227,6 +236,8 @@
 			// We don't want this build broken flag to cause reanalysis, so allow it through to the
 			// actions.
 			"BUILD_BROKEN_INCORRECT_PARTITION_IMAGES",
+			// Do not do reanalysis just because we changed ninja commands.
+			"SOONG_NINJA",
 			"SOONG_USE_N2",
 			"RUST_BACKTRACE",
 			"RUST_LOG",
@@ -235,8 +246,11 @@
 
 	cmd.Environment.Set("DIST_DIR", config.DistDir())
 	cmd.Environment.Set("SHELL", "/bin/bash")
-	if config.useN2 {
+	switch config.ninjaCommand {
+	case NINJA_N2:
 		cmd.Environment.Set("RUST_BACKTRACE", "1")
+	default:
+		// Only set RUST_BACKTRACE for n2.
 	}
 
 	// Print the environment variables that Ninja is operating in.
diff --git a/ui/build/soong.go b/ui/build/soong.go
index 97bc997..41425ac 100644
--- a/ui/build/soong.go
+++ b/ui/build/soong.go
@@ -27,6 +27,7 @@
 	"strings"
 	"sync"
 	"sync/atomic"
+	"syscall"
 	"time"
 
 	"android/soong/ui/tracer"
@@ -588,19 +589,11 @@
 		nr := status.NewNinjaReader(ctx, ctx.Status.StartTool(), fifo)
 		defer nr.Close()
 
-		ninjaArgs := []string{
-			"-d", "keepdepfile",
-			"-d", "stats",
-			"-o", "usesphonyoutputs=yes",
-			"-o", "preremoveoutputs=yes",
-			"-w", "dupbuild=err",
-			"-w", "outputdir=err",
-			"-w", "missingoutfile=err",
-			"-j", strconv.Itoa(config.Parallel()),
-			"--frontend_file", fifo,
-			"-f", filepath.Join(config.SoongOutDir(), "bootstrap.ninja"),
-		}
-		if config.useN2 {
+		var ninjaCmd string
+		var ninjaArgs []string
+		switch config.ninjaCommand {
+		case NINJA_N2:
+			ninjaCmd = config.N2Bin()
 			ninjaArgs = []string{
 				// TODO: implement these features, or remove them.
 				//"-d", "keepdepfile",
@@ -615,6 +608,39 @@
 				"--frontend-file", fifo,
 				"-f", filepath.Join(config.SoongOutDir(), "bootstrap.ninja"),
 			}
+		case NINJA_SISO:
+			ninjaCmd = config.SisoBin()
+			ninjaArgs = []string{
+				"ninja",
+				// TODO: implement these features, or remove them.
+				//"-d", "keepdepfile",
+				//"-d", "stats",
+				//"-o", "usesphonyoutputs=yes",
+				//"-o", "preremoveoutputs=yes",
+				//"-w", "dupbuild=err",
+				//"-w", "outputdir=err",
+				//"-w", "missingoutfile=err",
+				"-v",
+				"-j", strconv.Itoa(config.Parallel()),
+				//"--frontend-file", fifo,
+				"--log_dir", config.SoongOutDir(),
+				"-f", filepath.Join(config.SoongOutDir(), "bootstrap.ninja"),
+			}
+		default:
+			// NINJA_NINJA is the default.
+			ninjaCmd = config.NinjaBin()
+			ninjaArgs = []string{
+				"-d", "keepdepfile",
+				"-d", "stats",
+				"-o", "usesphonyoutputs=yes",
+				"-o", "preremoveoutputs=yes",
+				"-w", "dupbuild=err",
+				"-w", "outputdir=err",
+				"-w", "missingoutfile=err",
+				"-j", strconv.Itoa(config.Parallel()),
+				"--frontend_file", fifo,
+				"-f", filepath.Join(config.SoongOutDir(), "bootstrap.ninja"),
+			}
 		}
 
 		if extra, ok := config.Environment().Get("SOONG_UI_NINJA_ARGS"); ok {
@@ -623,10 +649,6 @@
 		}
 
 		ninjaArgs = append(ninjaArgs, targets...)
-		ninjaCmd := config.NinjaBin()
-		if config.useN2 {
-			ninjaCmd = config.N2Bin()
-		}
 
 		cmd := Command(ctx, config, "soong bootstrap",
 			ninjaCmd, ninjaArgs...)
@@ -759,7 +781,7 @@
 				hasNewDep := false
 				for _, dep := range cachedGlob.Deps {
 					info, err := os.Stat(dep)
-					if errors.Is(err, fs.ErrNotExist) {
+					if errors.Is(err, fs.ErrNotExist) || errors.Is(err, syscall.ENOTDIR) {
 						hasNewDep = true
 						break
 					} else if err != nil {
diff --git a/zip/cmd/Android.bp b/zip/cmd/Android.bp
index 43bf232..16c3f69 100644
--- a/zip/cmd/Android.bp
+++ b/zip/cmd/Android.bp
@@ -24,4 +24,6 @@
     srcs: [
         "main.go",
     ],
+    // Used by genrules
+    visibility: ["//visibility:public"],
 }