mobile

I am working with Android Studio. When I run the debugger, the debugger steps into the Android and Java System classes, too. In the Android Studio preferences|Debugger|Stepping, I have checked "Do not step into classes" and a bunch of patterns defined, like java.*, com.android.*, javax.*, com.sun.*, sun.*, android.*, etc. but the debugger still steps into these classes.

What I am missing here?