Make stub_libs property configurable

To replace soong config module types with selects.

Bug: 342006386
Test: m nothing --no-skip-soong-tests
Change-Id: I76394c0c8e2bc98ec03a3a9d8cff0ba2af4ab0d1
diff --git a/java/bootclasspath.go b/java/bootclasspath.go
index 77ddf5c..029f6f6 100644
--- a/java/bootclasspath.go
+++ b/java/bootclasspath.go
@@ -196,7 +196,7 @@
 type BootclasspathNestedAPIProperties struct {
 	// java_library or preferably, java_sdk_library modules providing stub classes that define the
 	// APIs provided by this bootclasspath_fragment.
-	Stub_libs []string
+	Stub_libs proptools.Configurable[[]string]
 }
 
 // BootclasspathAPIProperties defines properties for defining the API provided by parts of the
@@ -229,11 +229,11 @@
 
 // apiScopeToStubLibs calculates the stub library modules for each relevant *HiddenAPIScope from the
 // Stub_libs properties.
-func (p BootclasspathAPIProperties) apiScopeToStubLibs() map[*HiddenAPIScope][]string {
+func (p BootclasspathAPIProperties) apiScopeToStubLibs(ctx android.BaseModuleContext) map[*HiddenAPIScope][]string {
 	m := map[*HiddenAPIScope][]string{}
 	for _, apiScope := range hiddenAPISdkLibrarySupportedScopes {
-		m[apiScope] = p.Api.Stub_libs
+		m[apiScope] = p.Api.Stub_libs.GetOrDefault(ctx, nil)
 	}
-	m[CorePlatformHiddenAPIScope] = p.Core_platform_api.Stub_libs
+	m[CorePlatformHiddenAPIScope] = p.Core_platform_api.Stub_libs.GetOrDefault(ctx, nil)
 	return m
 }
diff --git a/java/bootclasspath_fragment.go b/java/bootclasspath_fragment.go
index 16209b7..bce507a 100644
--- a/java/bootclasspath_fragment.go
+++ b/java/bootclasspath_fragment.go
@@ -445,7 +445,7 @@
 func (b *BootclasspathFragmentModule) DepsMutator(ctx android.BottomUpMutatorContext) {
 	// Add dependencies onto all the modules that provide the API stubs for classes on this
 	// bootclasspath fragment.
-	hiddenAPIAddStubLibDependencies(ctx, b.properties.apiScopeToStubLibs())
+	hiddenAPIAddStubLibDependencies(ctx, b.properties.apiScopeToStubLibs(ctx))
 
 	for _, additionalStubModule := range b.properties.Additional_stubs {
 		for _, apiScope := range hiddenAPISdkLibrarySupportedScopes {
@@ -933,8 +933,8 @@
 	b.Filtered_flags_path = android.OptionalPathForPath(hiddenAPIInfo.FilteredFlagsPath)
 
 	// Copy stub_libs properties.
-	b.Stub_libs = module.properties.Api.Stub_libs
-	b.Core_platform_stub_libs = module.properties.Core_platform_api.Stub_libs
+	b.Stub_libs = module.properties.Api.Stub_libs.GetOrDefault(mctx, nil)
+	b.Core_platform_stub_libs = module.properties.Core_platform_api.Stub_libs.GetOrDefault(mctx, nil)
 
 	// Copy fragment properties.
 	b.Fragments = module.properties.Fragments