diff --git a/android/apex.go b/android/apex.go
index 29b2a9fa8..114fe2988 100644
--- a/android/apex.go
+++ b/android/apex.go
@@ -88,6 +88,9 @@ type ApexInfo struct {
 
 	// Returns the name of the overridden apex (com.android.foo)
 	BaseApexName string
+
+	// Returns the value of `apex_available_name`
+	ApexAvailableName string
 }
 
 // AllApexInfo holds the ApexInfo of all apexes that include this module.
diff --git a/apex/apex.go b/apex/apex.go
index e94327af5..27e9caa57 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -1071,6 +1071,7 @@ func (a *apexBundle) ApexInfoMutator(mctx android.TopDownMutatorContext) {
 		ApexContents:      []*android.ApexContents{apexContents},
 		TestApexes:        testApexes,
 		BaseApexName:      mctx.ModuleName(),
+		ApexAvailableName: proptools.String(a.properties.Apex_available_name),
 	}
 	mctx.WalkDeps(func(child, parent android.Module) bool {
 		if !continueApexDepsWalk(child, parent) {
diff --git a/apex/bootclasspath_fragment_test.go b/apex/bootclasspath_fragment_test.go
index 7cad337cb..df7857f29 100644
--- a/apex/bootclasspath_fragment_test.go
+++ b/apex/bootclasspath_fragment_test.go
@@ -835,6 +835,7 @@ func TestBootclasspathFragment_HiddenAPIList(t *testing.T) {
 	`)
 
 	java.CheckModuleDependencies(t, result.TestContext, "mybootclasspathfragment", "android_common_apex10000", []string{
+		"all_apex_contributions",
 		"art-bootclasspath-fragment",
 		"bar",
 		"dex2oatd",
@@ -1006,6 +1007,7 @@ func TestBootclasspathFragment_AndroidNonUpdatable_FromSource(t *testing.T) {
 	`)
 
 	java.CheckModuleDependencies(t, result.TestContext, "mybootclasspathfragment", "android_common_apex10000", []string{
+		"all_apex_contributions",
 		"android-non-updatable.stubs",
 		"android-non-updatable.stubs.module_lib",
 		"android-non-updatable.stubs.system",
@@ -1178,6 +1180,7 @@ func TestBootclasspathFragment_AndroidNonUpdatable_FromText(t *testing.T) {
 	`)
 
 	java.CheckModuleDependencies(t, result.TestContext, "mybootclasspathfragment", "android_common_apex10000", []string{
+		"all_apex_contributions",
 		"android-non-updatable.stubs",
 		"android-non-updatable.stubs.system",
 		"android-non-updatable.stubs.test",
@@ -1331,6 +1334,7 @@ func TestBootclasspathFragment_AndroidNonUpdatable_AlwaysUsePrebuiltSdks(t *test
 	`)
 
 	java.CheckModuleDependencies(t, result.TestContext, "mybootclasspathfragment", "android_common_apex10000", []string{
+		"all_apex_contributions",
 		"art-bootclasspath-fragment",
 		"bar",
 		"dex2oatd",
diff --git a/java/bootclasspath_fragment.go b/java/bootclasspath_fragment.go
index bef3b58c8..fe4cc7685 100644
--- a/java/bootclasspath_fragment.go
+++ b/java/bootclasspath_fragment.go
@@ -463,6 +463,12 @@ func (b *BootclasspathFragmentModule) DepsMutator(ctx android.BottomUpMutatorCon
 	// Add a dependency onto the dex2oat tool which is needed for creating the boot image. The
 	// path is retrieved from the dependency by GetGlobalSoongConfig(ctx).
 	dexpreopt.RegisterToolDeps(ctx)
+
+	// Add a dependency to `all_apex_contributions` to determine if prebuilts are active.
+	// If prebuilts are active, `contents` validation on the source bootclasspath fragment should be disabled.
+	if _, isPrebuiltModule := ctx.Module().(*PrebuiltBootclasspathFragmentModule); !isPrebuiltModule {
+		ctx.AddDependency(b, android.AcDepTag, "all_apex_contributions")
+	}
 }
 
 func (b *BootclasspathFragmentModule) BootclasspathDepsMutator(ctx android.BottomUpMutatorContext) {
diff --git a/java/dexpreopt.go b/java/dexpreopt.go
index 1c63e3f24..4734357ab 100644
--- a/java/dexpreopt.go
+++ b/java/dexpreopt.go
@@ -209,13 +209,18 @@ func disableSourceApexVariant(ctx android.BaseModuleContext) bool {
 			psi = prebuiltSelectionInfo
 		}
 	})
+
 	// Find the apex variant for this module
-	var apexVariantsWithoutTestApexes []string
+	apexVariantsWithoutTestApexes := []string{}
 	if apexInfo.BaseApexName != "" {
 		// This is a transitive dependency of an override_apex
-		apexVariantsWithoutTestApexes = []string{apexInfo.BaseApexName}
+		apexVariantsWithoutTestApexes = append(apexVariantsWithoutTestApexes, apexInfo.BaseApexName)
 	} else {
-		_, apexVariantsWithoutTestApexes, _ = android.ListSetDifference(apexInfo.InApexVariants, apexInfo.TestApexes)
+		_, variants, _ := android.ListSetDifference(apexInfo.InApexVariants, apexInfo.TestApexes)
+		apexVariantsWithoutTestApexes = append(apexVariantsWithoutTestApexes, variants...)
+	}
+	if apexInfo.ApexAvailableName != "" {
+		apexVariantsWithoutTestApexes = append(apexVariantsWithoutTestApexes, apexInfo.ApexAvailableName)
 	}
 	disableSource := false
 	// find the selected apexes