BCField changeTracker = bc.declareField("changeTracker",
CollectionChangeTracker.class);
changeTracker.setTransient(true);
BCMethod m = bc.declareMethod("getChangeTracker", ChangeTracker.class,
null);
m.makePublic();
Code code = m.getCode(true);
code.aload().setThis();
code.getfield().setField(changeTracker);
code.areturn();
code.calculateMaxStack();