The following program causes an assertion failure in javac 1.3-beta:

class Top {
  int x;
  class Dummy {
     Dummy(Object o) {}
  }
  class Inside extends Dummy {
    Inside() {
       super(new Object() { int r = x; }); // javac incorrect error msg
    }
  }
}

william.maddox@Eng 1999-10-06