import java.io.*; import java.util.*; import demeter.*; import java.lang.*; import demeter.*; abstract class SubClass1 implements Cloneable { public SubClass1() { super(); } public void all_trv1_bef(AppendVisitor av) { } public void all_trv1_aft(AppendVisitor av) { } public void all_trv1(AppendVisitor av) { } }