diff --git a/java/droiddoc.go b/java/droiddoc.go
index 62a6661..a637349 100644
--- a/java/droiddoc.go
+++ b/java/droiddoc.go
@@ -350,11 +350,16 @@
 	ApiFilePath() android.Path
 }
 
+type ApiStubsSrcProvider interface {
+	StubsSrcJar() android.Path
+}
+
 // Provider of information about API stubs, used by java_sdk_library.
 type ApiStubsProvider interface {
 	ApiFilePath
 	RemovedApiFilePath() android.Path
-	StubsSrcJar() android.Path
+
+	ApiStubsSrcProvider
 }
 
 //
@@ -1915,6 +1920,10 @@
 	}
 }
 
+func (d *PrebuiltStubsSources) StubsSrcJar() android.Path {
+	return d.stubsSrcJar
+}
+
 func (p *PrebuiltStubsSources) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	p.stubsSrcJar = android.PathForModuleOut(ctx, ctx.ModuleName()+"-"+"stubs.srcjar")