I am working on a app where I need to add additional logs in Activity.java and Window.java files. Path of these files inside android.jar is
android.jar!androidappActivity.class,
android.jar!androidviewWindow.class.
I have source code of these files in my AOSP at frameworks/base/core/java/android/app/
My question is how can I compile android.jar? Will it get generated in AOSP build? If yes at which path?
Or is there any other way to compile it?

I tried to locate android.jar file after clean build but it is not present in AOSP project.