The following program crashes javac:

public class Test {
    void m() {
        m1(()-> {
            new A(){
                public void m11() {}
            };
        });

    }

    void m1(Runnable r) {}
}

This program compiles correctly if 'A' is a known identifier. We don't expect this code to be very frequent but this crash should be fixed in an early 8uX release.