diff --git a/java/aar.go b/java/aar.go
index 99e9136..89517fe 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -357,6 +357,7 @@
 	module.AddProperties(
 		&module.Module.properties,
 		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
 		&module.Module.protoProperties,
 		&module.aaptProperties,
 		&module.androidLibraryProperties)
diff --git a/java/androidmk.go b/java/androidmk.go
index 0700b58..70d0f7f 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -25,7 +25,7 @@
 func (library *Library) AndroidMk() android.AndroidMkData {
 	return android.AndroidMkData{
 		Class:      "JAVA_LIBRARIES",
-		OutputFile: android.OptionalPathForPath(library.implementationAndResourcesJar),
+		OutputFile: android.OptionalPathForPath(library.outputFile),
 		Include:    "$(BUILD_SYSTEM)/soong_java_prebuilt.mk",
 		Extra: []android.AndroidMkExtraFunc{
 			func(w io.Writer, outputFile android.Path) {
@@ -42,21 +42,12 @@
 				}
 				if library.dexJarFile != nil {
 					fmt.Fprintln(w, "LOCAL_SOONG_DEX_JAR :=", library.dexJarFile.String())
-					if library.deviceProperties.Dex_preopt.Enabled != nil {
-						fmt.Fprintln(w, "LOCAL_DEX_PREOPT :=", *library.deviceProperties.Dex_preopt.Enabled)
-					}
-					if library.deviceProperties.Dex_preopt.App_image != nil {
-						fmt.Fprintln(w, "LOCAL_DEX_PREOPT_APP_IMAGE :=", *library.deviceProperties.Dex_preopt.App_image)
-					}
-					if library.deviceProperties.Dex_preopt.Profile_guided != nil {
-						fmt.Fprintln(w, "LOCAL_DEX_PREOPT_GENERATE_PROFILE :=", *library.deviceProperties.Dex_preopt.Profile_guided)
-					}
-					if library.deviceProperties.Dex_preopt.Profile != nil {
-						fmt.Fprintln(w, "LOCAL_DEX_PREOPT_GENERATE_PROFILE := true")
-						fmt.Fprintln(w, "LOCAL_DEX_PREOPT_PROFILE_CLASS_LISTING := $(LOCAL_PATH)/"+*library.deviceProperties.Dex_preopt.Profile)
-					}
+				}
+				if len(library.dexpreopter.builtInstalled) > 0 {
+					fmt.Fprintln(w, "LOCAL_SOONG_BUILT_INSTALLED :=", strings.Join(library.dexpreopter.builtInstalled, " "))
 				}
 				fmt.Fprintln(w, "LOCAL_SDK_VERSION :=", library.sdkVersion())
+				fmt.Fprintln(w, "LOCAL_SOONG_CLASSES_JAR :=", library.implementationAndResourcesJar.String())
 				fmt.Fprintln(w, "LOCAL_SOONG_HEADER_JAR :=", library.headerJarFile.String())
 
 				if library.jacocoReportClassesFile != nil {
@@ -84,7 +75,6 @@
 				fmt.Fprintln(w, "LOCAL_MODULE := "+name+"-hostdex")
 				fmt.Fprintln(w, "LOCAL_IS_HOST_MODULE := true")
 				fmt.Fprintln(w, "LOCAL_MODULE_CLASS := JAVA_LIBRARIES")
-				fmt.Fprintln(w, "LOCAL_PREBUILT_MODULE_FILE :=", library.implementationAndResourcesJar.String())
 				if library.installFile == nil {
 					fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
 				}
@@ -92,6 +82,7 @@
 					fmt.Fprintln(w, "LOCAL_SOONG_DEX_JAR :=", library.dexJarFile.String())
 				}
 				fmt.Fprintln(w, "LOCAL_SOONG_HEADER_JAR :=", library.headerJarFile.String())
+				fmt.Fprintln(w, "LOCAL_SOONG_CLASSES_JAR :=", library.implementationAndResourcesJar.String())
 				fmt.Fprintln(w, "LOCAL_REQUIRED_MODULES := "+strings.Join(data.Required, " "))
 				fmt.Fprintln(w, "include $(BUILD_SYSTEM)/soong_java_prebuilt.mk")
 			}
@@ -128,6 +119,7 @@
 			func(w io.Writer, outputFile android.Path) {
 				fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := ", !Bool(prebuilt.properties.Installable))
 				fmt.Fprintln(w, "LOCAL_SOONG_HEADER_JAR :=", prebuilt.combinedClasspathFile.String())
+				fmt.Fprintln(w, "LOCAL_SOONG_CLASSES_JAR :=", prebuilt.combinedClasspathFile.String())
 				fmt.Fprintln(w, "LOCAL_SDK_VERSION :=", prebuilt.sdkVersion())
 			},
 		},
@@ -142,8 +134,8 @@
 		Extra: []android.AndroidMkExtraFunc{
 			func(w io.Writer, outputFile android.Path) {
 				fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
-				fmt.Fprintln(w, "LOCAL_DEX_PREOPT := false")
 				fmt.Fprintln(w, "LOCAL_SOONG_HEADER_JAR :=", prebuilt.classpathFile.String())
+				fmt.Fprintln(w, "LOCAL_SOONG_CLASSES_JAR :=", prebuilt.classpathFile.String())
 				fmt.Fprintln(w, "LOCAL_SOONG_RESOURCE_EXPORT_PACKAGE :=", prebuilt.exportPackage.String())
 				fmt.Fprintln(w, "LOCAL_SOONG_EXPORT_PROGUARD_FLAGS :=", prebuilt.proguardFlags.String())
 				fmt.Fprintln(w, "LOCAL_SOONG_STATIC_LIBRARY_EXTRA_PACKAGES :=", prebuilt.extraAaptPackagesFile.String())
@@ -164,6 +156,7 @@
 			Extra: []android.AndroidMkExtraFunc{
 				func(w io.Writer, outputFile android.Path) {
 					fmt.Fprintln(w, "LOCAL_SOONG_HEADER_JAR :=", binary.headerJarFile.String())
+					fmt.Fprintln(w, "LOCAL_SOONG_CLASSES_JAR :=", binary.implementationAndResourcesJar.String())
 				},
 			},
 			Custom: func(w io.Writer, name, prefix, moduleDir string, data android.AndroidMkData) {
@@ -250,6 +243,9 @@
 				for _, jniLib := range app.installJniLibs {
 					fmt.Fprintln(w, "LOCAL_SOONG_JNI_LIBS_"+jniLib.target.Arch.ArchType.String(), "+=", jniLib.name)
 				}
+				if len(app.dexpreopter.builtInstalled) > 0 {
+					fmt.Fprintln(w, "LOCAL_SOONG_BUILT_INSTALLED :=", strings.Join(app.dexpreopter.builtInstalled, " "))
+				}
 			},
 		},
 	}
@@ -313,7 +309,6 @@
 		fmt.Fprintln(w, "LOCAL_SOONG_EXPORT_PROGUARD_FLAGS :=",
 			strings.Join(a.exportedProguardFlagFiles.Strings(), " "))
 		fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE := true")
-		fmt.Fprintln(w, "LOCAL_DEX_PREOPT := false")
 	})
 
 	return data
diff --git a/java/app.go b/java/app.go
index 392ad3f..b44fc34 100644
--- a/java/app.go
+++ b/java/app.go
@@ -17,6 +17,7 @@
 // This file contains the module types for compiling Android apps.
 
 import (
+	"path/filepath"
 	"strings"
 
 	"github.com/google/blueprint"
@@ -69,7 +70,6 @@
 
 	AllowDexPreopt bool `blueprint:"mutated"`
 	EmbedJNI       bool `blueprint:"mutated"`
-	StripDex       bool `blueprint:"mutated"`
 }
 
 type AndroidApp struct {
@@ -143,42 +143,16 @@
 	a.generateAndroidBuildActions(ctx)
 }
 
-// Returns whether this module should have the dex file stored uncompressed in the APK, or stripped completely.  If
-// stripped, the code will still be present on the device in the dexpreopted files.
-// This is only necessary for APKs, and not jars, because APKs are signed and the dex file should not be uncompressed
-// or removed after the signature has been generated.  For jars, which are not signed, the dex file is uncompressed
-// or removed at installation time in Make.
-func (a *AndroidApp) uncompressOrStripDex(ctx android.ModuleContext) (uncompress, strip bool) {
+// Returns whether this module should have the dex file stored uncompressed in the APK.
+func (a *AndroidApp) shouldUncompressDex(ctx android.ModuleContext) bool {
 	if ctx.Config().UnbundledBuild() {
-		return false, false
+		return false
 	}
 
-	strip = ctx.Config().DefaultStripDex()
-	// TODO(ccross): don't strip dex installed on partitions that may be updated separately (like vendor)
-	// TODO(ccross): don't strip dex on modules with LOCAL_APK_LIBRARIES equivalent
-
 	// Uncompress dex in APKs of privileged apps, and modules used by privileged apps.
-	if ctx.Config().UncompressPrivAppDex() &&
+	return ctx.Config().UncompressPrivAppDex() &&
 		(Bool(a.appProperties.Privileged) ||
-			inList(ctx.ModuleName(), ctx.Config().ModulesLoadedByPrivilegedModules())) {
-
-		uncompress = true
-		// If the dex files is store uncompressed, don't strip it, we will reuse the uncompressed dex from the APK
-		// instead of copying it into the odex file.
-		strip = false
-	}
-
-	// If dexpreopt is disabled, don't strip the dex file
-	if !a.appProperties.AllowDexPreopt ||
-		!BoolDefault(a.deviceProperties.Dex_preopt.Enabled, true) ||
-		ctx.Config().DisableDexPreopt(ctx.ModuleName()) {
-		strip = false
-	}
-
-	// TODO(ccross): strip dexpropted modules that are not propted to system_other
-	strip = false
-
-	return uncompress, strip
+			inList(ctx.ModuleName(), ctx.Config().ModulesLoadedByPrivilegedModules()))
 }
 
 func (a *AndroidApp) generateAndroidBuildActions(ctx android.ModuleContext) {
@@ -228,16 +202,25 @@
 	a.Module.extraProguardFlagFiles = append(a.Module.extraProguardFlagFiles, staticLibProguardFlagFiles...)
 	a.Module.extraProguardFlagFiles = append(a.Module.extraProguardFlagFiles, a.proguardOptionsFile)
 
-	a.deviceProperties.UncompressDex, a.appProperties.StripDex = a.uncompressOrStripDex(ctx)
+	a.deviceProperties.UncompressDex = a.shouldUncompressDex(ctx)
+
+	var installDir string
+	if ctx.ModuleName() == "framework-res" {
+		// framework-res.apk is installed as system/framework/framework-res.apk
+		installDir = "framework"
+	} else if Bool(a.appProperties.Privileged) {
+		installDir = filepath.Join("priv-app", ctx.ModuleName())
+	} else {
+		installDir = filepath.Join("app", ctx.ModuleName())
+	}
+	a.dexpreopter.installPath = android.PathForModuleInstall(ctx, installDir, ctx.ModuleName()+".apk")
+	a.dexpreopter.isPrivApp = Bool(a.appProperties.Privileged)
 
 	if ctx.ModuleName() != "framework-res" {
 		a.Module.compile(ctx, a.aaptSrcJar)
 	}
-	dexJarFile := a.dexJarFile
 
-	if a.appProperties.StripDex {
-		dexJarFile = nil
-	}
+	dexJarFile := a.maybeStrippedDexJarFile
 
 	var certificates []Certificate
 
@@ -287,9 +270,9 @@
 		// framework-res.apk is installed as system/framework/framework-res.apk
 		ctx.InstallFile(android.PathForModuleInstall(ctx, "framework"), ctx.ModuleName()+".apk", a.outputFile)
 	} else if Bool(a.appProperties.Privileged) {
-		ctx.InstallFile(android.PathForModuleInstall(ctx, "priv-app"), ctx.ModuleName()+".apk", a.outputFile)
+		ctx.InstallFile(android.PathForModuleInstall(ctx, "priv-app", ctx.ModuleName()), ctx.ModuleName()+".apk", a.outputFile)
 	} else {
-		ctx.InstallFile(android.PathForModuleInstall(ctx, "app"), ctx.ModuleName()+".apk", a.outputFile)
+		ctx.InstallFile(android.PathForModuleInstall(ctx, "app", ctx.ModuleName()), ctx.ModuleName()+".apk", a.outputFile)
 	}
 }
 
@@ -342,6 +325,7 @@
 	module.AddProperties(
 		&module.Module.properties,
 		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
 		&module.Module.protoProperties,
 		&module.aaptProperties,
 		&module.appProperties)
@@ -404,6 +388,7 @@
 	module.AddProperties(
 		&module.Module.properties,
 		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
 		&module.Module.protoProperties,
 		&module.aaptProperties,
 		&module.appProperties,
@@ -439,6 +424,7 @@
 	module.AddProperties(
 		&module.Module.properties,
 		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
 		&module.Module.protoProperties,
 		&module.aaptProperties,
 		&module.appProperties,
diff --git a/java/builder.go b/java/builder.go
index cefb916..8615664 100644
--- a/java/builder.go
+++ b/java/builder.go
@@ -138,6 +138,17 @@
 			CommandDeps: []string{"${config.JavaCmd}", "${config.JetifierJar}"},
 		},
 	)
+
+	zipalign = pctx.AndroidStaticRule("zipalign",
+		blueprint.RuleParams{
+			Command: "if ! ${config.ZipAlign} -c 4 $in > /dev/null; then " +
+				"${config.ZipAlign} -f 4 $in $out; " +
+				"else " +
+				"cp -f $in $out; " +
+				"fi",
+			CommandDeps: []string{"${config.ZipAlign}"},
+		},
+	)
 )
 
 func init() {
@@ -410,6 +421,15 @@
 	})
 }
 
+func TransformZipAlign(ctx android.ModuleContext, outputFile android.WritablePath, inputFile android.Path) {
+	ctx.Build(pctx, android.BuildParams{
+		Rule:        zipalign,
+		Description: "align",
+		Input:       inputFile,
+		Output:      outputFile,
+	})
+}
+
 type classpath []android.Path
 
 func (x *classpath) FormJavaClassPath(optName string) string {
diff --git a/java/config/config.go b/java/config/config.go
index d2a8c46..da4eed7 100644
--- a/java/config/config.go
+++ b/java/config/config.go
@@ -126,6 +126,7 @@
 	pctx.HostJavaToolVariable("JetifierJar", "jetifier.jar")
 
 	pctx.HostBinToolVariable("SoongJavacWrapper", "soong_javac_wrapper")
+	pctx.HostBinToolVariable("DexpreoptGen", "dexpreopt_gen")
 
 	pctx.VariableFunc("JavacWrapper", func(ctx android.PackageVarContext) string {
 		if override := ctx.Config().Getenv("JAVAC_WRAPPER"); override != "" {
@@ -152,4 +153,6 @@
 
 	pctx.SourcePathsVariable("ManifestMergerJars", " ", ManifestMergerClasspath...)
 	pctx.SourcePathsVariable("ManifestMergerClasspath", ":", ManifestMergerClasspath...)
+
+	pctx.HostBinToolVariable("ZipAlign", "zipalign")
 }
diff --git a/java/config/makevars.go b/java/config/makevars.go
index 275f496..01adaa7 100644
--- a/java/config/makevars.go
+++ b/java/config/makevars.go
@@ -65,6 +65,7 @@
 	ctx.Strict("JMOD", "${JmodCmd}")
 
 	ctx.Strict("SOONG_JAVAC_WRAPPER", "${SoongJavacWrapper}")
+	ctx.Strict("DEXPREOPT_GEN", "${DexpreoptGen}")
 	ctx.Strict("ZIPSYNC", "${ZipSyncCmd}")
 
 	ctx.Strict("JACOCO_CLI_JAR", "${JacocoCLIJar}")
diff --git a/java/dexpreopt.go b/java/dexpreopt.go
new file mode 100644
index 0000000..3ee1205
--- /dev/null
+++ b/java/dexpreopt.go
@@ -0,0 +1,246 @@
+// Copyright 2018 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 (
+	"path/filepath"
+	"strings"
+
+	"github.com/google/blueprint"
+	"github.com/google/blueprint/proptools"
+
+	"android/soong/android"
+	"android/soong/dexpreopt"
+)
+
+type dexpreopter struct {
+	dexpreoptProperties DexpreoptProperties
+
+	installPath  android.OutputPath
+	isPrivApp    bool
+	isSDKLibrary bool
+
+	builtInstalled []string
+}
+
+type DexpreoptProperties struct {
+	Dex_preopt struct {
+		// If false, prevent dexpreopting and stripping the dex file from the final jar.  Defaults to
+		// true.
+		Enabled *bool
+
+		// If true, generate an app image (.art file) for this module.
+		App_image *bool
+
+		// 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
+
+		// 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
+	}
+}
+
+func (d *dexpreopter) dexpreoptDisabled(ctx android.ModuleContext) bool {
+	if ctx.Config().DisableDexPreopt(ctx.ModuleName()) {
+		return true
+	}
+
+	if ctx.Config().UnbundledBuild() {
+		return true
+	}
+
+	if !BoolDefault(d.dexpreoptProperties.Dex_preopt.Enabled, true) {
+		return true
+	}
+
+	// TODO: contains no java code
+	// TODO: is test
+
+	return false
+}
+
+func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.ModuleOutPath) android.ModuleOutPath {
+	if d.dexpreoptDisabled(ctx) {
+		return dexJarFile
+	}
+
+	globalConfig := ctx.Config().Once("DexpreoptGlobalConfig", func() interface{} {
+		if f := ctx.Config().DexpreoptGlobalConfig(); f != "" {
+			ctx.AddNinjaFileDeps(f)
+			globalConfig, err := dexpreopt.LoadGlobalConfig(f)
+			if err != nil {
+				panic(err)
+			}
+			return globalConfig
+		}
+		return dexpreopt.GlobalConfig{}
+	}).(dexpreopt.GlobalConfig)
+
+	var archs []string
+	for _, a := range ctx.MultiTargets() {
+		archs = append(archs, a.Arch.ArchType.String())
+	}
+	if len(archs) == 0 {
+		// assume this is a java library, dexpreopt for all arches for now
+		for _, target := range ctx.Config().Targets[android.Android] {
+			archs = append(archs, target.Arch.ArchType.String())
+		}
+		if inList(ctx.ModuleName(), globalConfig.SystemServerJars) && !d.isSDKLibrary {
+			// If the module is not an SDK library and it's a system server jar, only preopt the primary arch.
+			archs = archs[:1]
+		}
+	}
+	if ctx.Config().SecondArchIsTranslated() {
+		// Only preopt primary arch for translated arch since there is only an image there.
+		archs = archs[:1]
+	}
+
+	dexLocation := android.InstallPathToOnDevicePath(ctx, d.installPath)
+
+	strippedDexJarFile := android.PathForModuleOut(ctx, "dexpreopt", dexJarFile.Base())
+
+	deps := android.Paths{dexJarFile}
+
+	var profileClassListing android.OptionalPath
+	profileIsTextListing := false
+	if BoolDefault(d.dexpreoptProperties.Dex_preopt.Profile_guided, true) {
+		// If dex_preopt.profile_guided is not set, default it based on the existence of the
+		// dexprepot.profile option or the profile class listing.
+		if String(d.dexpreoptProperties.Dex_preopt.Profile) != "" {
+			profileClassListing = android.OptionalPathForPath(
+				android.PathForModuleSrc(ctx, String(d.dexpreoptProperties.Dex_preopt.Profile)))
+			profileIsTextListing = true
+		} else {
+			profileClassListing = android.ExistentPathForSource(ctx,
+				ctx.Config().DexPreoptProfileDir(), ctx.ModuleName()+".prof")
+		}
+	}
+
+	if profileClassListing.Valid() {
+		deps = append(deps, profileClassListing.Path())
+	}
+
+	uncompressedDex := false
+	if ctx.Config().UncompressPrivAppDex() &&
+		(d.isPrivApp || inList(ctx.ModuleName(), ctx.Config().ModulesLoadedByPrivilegedModules())) {
+		uncompressedDex = true
+	}
+
+	dexpreoptConfig := dexpreopt.ModuleConfig{
+		Name:            ctx.ModuleName(),
+		DexLocation:     dexLocation,
+		BuildPath:       android.PathForModuleOut(ctx, "dexpreopt", ctx.ModuleName()+".jar").String(),
+		DexPath:         dexJarFile.String(),
+		PreferIntegrity: false,
+		UncompressedDex: uncompressedDex,
+		HasApkLibraries: false,
+		PreoptFlags:     nil,
+
+		ProfileClassListing:  profileClassListing.String(),
+		ProfileIsTextListing: profileIsTextListing,
+
+		EnforceUsesLibraries:  false,
+		OptionalUsesLibraries: nil,
+		UsesLibraries:         nil,
+		LibraryPaths:          nil,
+
+		Archs:                  archs,
+		DexPreoptImageLocation: "",
+
+		PreoptExtractedApk: false,
+
+		NoCreateAppImage:    !BoolDefault(d.dexpreoptProperties.Dex_preopt.App_image, true),
+		ForceCreateAppImage: BoolDefault(d.dexpreoptProperties.Dex_preopt.App_image, false),
+
+		StripInputPath:  dexJarFile.String(),
+		StripOutputPath: strippedDexJarFile.String(),
+	}
+
+	dexpreoptRule, err := dexpreopt.GenerateDexpreoptRule(globalConfig, dexpreoptConfig)
+	if err != nil {
+		ctx.ModuleErrorf("error generating dexpreopt rule: %s", err.Error())
+		return dexJarFile
+	}
+
+	var inputs android.Paths
+	for _, input := range dexpreoptRule.Inputs() {
+		if input == "" {
+			// Tests sometimes have empty configuration values that lead to empty inputs
+			continue
+		}
+		rel, isRel := android.MaybeRel(ctx, android.PathForModuleOut(ctx).String(), input)
+		if isRel {
+			inputs = append(inputs, android.PathForModuleOut(ctx, rel))
+		} else {
+			// TODO: use PathForOutput once boot image is moved to where PathForOutput can find it.
+			inputs = append(inputs, &bootImagePath{input})
+		}
+	}
+
+	var outputs android.WritablePaths
+	for _, output := range dexpreoptRule.Outputs() {
+		rel := android.Rel(ctx, android.PathForModuleOut(ctx).String(), output)
+		outputs = append(outputs, android.PathForModuleOut(ctx, rel))
+	}
+
+	for _, install := range dexpreoptRule.Installs() {
+		d.builtInstalled = append(d.builtInstalled, install.From+":"+install.To)
+	}
+
+	if len(dexpreoptRule.Commands()) > 0 {
+		ctx.Build(pctx, android.BuildParams{
+			Rule: ctx.Rule(pctx, "dexpreopt", blueprint.RuleParams{
+				Command:     strings.Join(proptools.NinjaEscape(dexpreoptRule.Commands()), " && "),
+				CommandDeps: dexpreoptRule.Tools(),
+			}),
+			Implicits:   inputs,
+			Outputs:     outputs,
+			Description: "dexpreopt",
+		})
+	}
+
+	stripRule, err := dexpreopt.GenerateStripRule(globalConfig, dexpreoptConfig)
+	if err != nil {
+		ctx.ModuleErrorf("error generating dexpreopt strip rule: %s", err.Error())
+		return dexJarFile
+	}
+
+	ctx.Build(pctx, android.BuildParams{
+		Rule: ctx.Rule(pctx, "dexpreopt_strip", blueprint.RuleParams{
+			Command:     strings.Join(proptools.NinjaEscape(stripRule.Commands()), " && "),
+			CommandDeps: stripRule.Tools(),
+		}),
+		Input:       dexJarFile,
+		Output:      strippedDexJarFile,
+		Description: "dexpreopt strip",
+	})
+
+	return strippedDexJarFile
+}
+
+type bootImagePath struct {
+	path string
+}
+
+var _ android.Path = (*bootImagePath)(nil)
+
+func (p *bootImagePath) String() string { return p.path }
+func (p *bootImagePath) Ext() string    { return filepath.Ext(p.path) }
+func (p *bootImagePath) Base() string   { return filepath.Base(p.path) }
+func (p *bootImagePath) Rel() string    { return p.path }
diff --git a/java/java.go b/java/java.go
index 5ed99f7..aea1ef9 100644
--- a/java/java.go
+++ b/java/java.go
@@ -217,25 +217,6 @@
 	// If set to true, compile dex regardless of installable.  Defaults to false.
 	Compile_dex *bool
 
-	Dex_preopt struct {
-		// If false, prevent dexpreopting and stripping the dex file from the final jar.  Defaults to
-		// true.
-		Enabled *bool
-
-		// If true, generate an app image (.art file) for this module.
-		App_image *bool
-
-		// 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
-
-		// 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
-	}
-
 	Optimize struct {
 		// If false, disable all optimization.  Defaults to true for android_app and android_test
 		// modules, false for java_library and java_test modules.
@@ -266,6 +247,7 @@
 	System_modules *string
 
 	UncompressDex bool `blueprint:"mutated"`
+	IsSDKLibrary  bool `blueprint:"mutated"`
 }
 
 // Module contains the properties and members used by all java module types
@@ -295,6 +277,9 @@
 	// output file containing classes.dex and resources
 	dexJarFile android.Path
 
+	// output file that contains classes.dex if it should be in the output file
+	maybeStrippedDexJarFile android.Path
+
 	// output file containing uninstrumented classes that will be instrumented by jacoco
 	jacocoReportClassesFile android.Path
 
@@ -327,6 +312,8 @@
 	// list of source files, collected from compiledJavaSrcs and compiledSrcJars
 	// filter out Exclude_srcs, will be used by android.IDEInfo struct
 	expandIDEInfoCompiledSrcs []string
+
+	dexpreopter
 }
 
 func (j *Module) Srcs() android.Paths {
@@ -1332,7 +1319,15 @@
 
 		j.dexJarFile = dexOutputFile
 
+		dexOutputFile = j.dexpreopt(ctx, dexOutputFile)
+
+		j.maybeStrippedDexJarFile = dexOutputFile
+
 		outputFile = dexOutputFile
+
+		if ctx.Failed() {
+			return
+		}
 	} else {
 		outputFile = implementationAndResourcesJar
 	}
@@ -1486,9 +1481,17 @@
 }
 
 func (j *Library) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	j.dexpreopter.installPath = android.PathForModuleInstall(ctx, "framework", ctx.ModuleName()+".jar")
+	j.dexpreopter.isSDKLibrary = j.deviceProperties.IsSDKLibrary
 	j.compile(ctx)
 
 	if Bool(j.properties.Installable) || ctx.Host() {
+		if j.deviceProperties.UncompressDex {
+			alignedOutputFile := android.PathForModuleOut(ctx, "aligned", ctx.ModuleName()+".jar")
+			TransformZipAlign(ctx, alignedOutputFile, j.outputFile)
+			j.outputFile = alignedOutputFile
+		}
+
 		j.installFile = ctx.InstallFile(android.PathForModuleInstall(ctx, "framework"),
 			ctx.ModuleName()+".jar", j.outputFile)
 	}
@@ -1504,6 +1507,7 @@
 	module.AddProperties(
 		&module.Module.properties,
 		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
 		&module.Module.protoProperties)
 
 	InitJavaModule(module, android.HostAndDeviceSupported)
@@ -1574,6 +1578,7 @@
 	module.AddProperties(
 		&module.Module.properties,
 		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
 		&module.Module.protoProperties,
 		&module.testProperties)
 
@@ -1670,6 +1675,7 @@
 	module.AddProperties(
 		&module.Module.properties,
 		&module.Module.deviceProperties,
+		&module.Module.dexpreoptProperties,
 		&module.Module.protoProperties,
 		&module.binaryProperties)
 
@@ -1889,6 +1895,7 @@
 	module.AddProperties(
 		&CompilerProperties{},
 		&CompilerDeviceProperties{},
+		&DexpreoptProperties{},
 		&android.ProtoProperties{},
 		&aaptProperties{},
 		&androidLibraryProperties{},
diff --git a/java/sdk_library.go b/java/sdk_library.go
index fdbf19d..877abe4 100644
--- a/java/sdk_library.go
+++ b/java/sdk_library.go
@@ -141,8 +141,9 @@
 	android.ModuleBase
 	android.DefaultableModuleBase
 
-	properties       sdkLibraryProperties
-	deviceProperties CompilerDeviceProperties
+	properties          sdkLibraryProperties
+	deviceProperties    CompilerDeviceProperties
+	dexpreoptProperties DexpreoptProperties
 
 	publicApiStubsPath android.Paths
 	systemApiStubsPath android.Paths
@@ -564,6 +565,7 @@
 		Errorprone       struct {
 			Javacflags []string
 		}
+		IsSDKLibrary bool
 	}{}
 
 	props.Name = proptools.StringPtr(module.implName())
@@ -574,6 +576,7 @@
 	// XML file is installed along with the impl lib
 	props.Required = []string{module.xmlFileName()}
 	props.Errorprone.Javacflags = module.properties.Errorprone.Javacflags
+	props.IsSDKLibrary = true
 
 	if module.SocSpecific() {
 		props.Soc_specific = proptools.BoolPtr(true)
@@ -583,7 +586,10 @@
 		props.Product_specific = proptools.BoolPtr(true)
 	}
 
-	mctx.CreateModule(android.ModuleFactoryAdaptor(LibraryFactory), &props, &module.deviceProperties)
+	mctx.CreateModule(android.ModuleFactoryAdaptor(LibraryFactory),
+		&props,
+		&module.deviceProperties,
+		&module.dexpreoptProperties)
 }
 
 // Creates the xml file that publicizes the runtime library
@@ -716,6 +722,7 @@
 	module := &sdkLibrary{}
 	module.AddProperties(&module.properties)
 	module.AddProperties(&module.deviceProperties)
+	module.AddProperties(&module.dexpreoptProperties)
 	InitJavaModule(module, android.DeviceSupported)
 	return module
 }