diff --git a/java/java.go b/java/java.go
index bd5f6b7..d7f09f9 100644
--- a/java/java.go
+++ b/java/java.go
@@ -496,11 +496,16 @@
 
 var _ android.OutputFileProducer = (*Module)(nil)
 
-type Dependency interface {
+// Methods that need to be implemented for a module that is added to apex java_libs property.
+type ApexDependency interface {
 	HeaderJars() android.Paths
+	ImplementationAndResourcesJars() android.Paths
+}
+
+type Dependency interface {
+	ApexDependency
 	ImplementationJars() android.Paths
 	ResourceJars() android.Paths
-	ImplementationAndResourcesJars() android.Paths
 	DexJarBuildPath() android.Path
 	DexJarInstallPath() android.Path
 	AidlIncludeDirs() android.Paths