diff --git a/java/bootclasspath_fragment.go b/java/bootclasspath_fragment.go
index 769e901..233b062 100644
--- a/java/bootclasspath_fragment.go
+++ b/java/bootclasspath_fragment.go
@@ -525,27 +525,18 @@
 
 	global := dexpreopt.GetGlobalConfig(ctx)
 
-	// Convert content names to their appropriate stems, in case a test library is overriding an actual boot jar
-	var stems []string
-	for _, name := range b.properties.Contents {
-		dep := ctx.GetDirectDepWithTag(name, bootclasspathFragmentContentDepTag)
-		if m, ok := dep.(ModuleWithStem); ok {
-			stems = append(stems, m.Stem())
-		} else {
-			ctx.PropertyErrorf("contents", "%v is not a ModuleWithStem", name)
-		}
-	}
+	possibleUpdatableModules := gatherPossibleUpdatableModuleNamesAndStems(ctx, b.properties.Contents, bootclasspathFragmentContentDepTag)
 
 	// Only create configs for updatable boot jars. Non-updatable boot jars must be part of the
 	// platform_bootclasspath's classpath proto config to guarantee that they come before any
 	// updatable jars at runtime.
-	jars := global.UpdatableBootJars.Filter(stems)
+	jars := global.UpdatableBootJars.Filter(possibleUpdatableModules)
 
 	// TODO(satayev): for apex_test we want to include all contents unconditionally to classpaths
 	// config. However, any test specific jars would not be present in UpdatableBootJars. Instead,
 	// we should check if we are creating a config for apex_test via ApexInfo and amend the values.
 	// This is an exception to support end-to-end test for SdkExtensions, until such support exists.
-	if android.InList("test_framework-sdkextensions", stems) {
+	if android.InList("test_framework-sdkextensions", possibleUpdatableModules) {
 		jars = jars.Append("com.android.sdkext", "test_framework-sdkextensions")
 	}
 	return jars