Program: 98165
Project: 98165
Buggy source:
public void notifyEvent(ZooPCImpl src,ZooInstanceEvent event){
  if (listeners == null) {
    return;
  }
  for (  InstanceLifecycleListener l : listeners) {
switch (event) {
case PRE_CLEAR:
      if (ClearLifecycleListener.class.isAssignableFrom(l.getClass())) {
        ((ClearLifecycleListener)l).preClear(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.CLEAR));
      }
    break;
case POST_CLEAR:
  if (ClearLifecycleListener.class.isAssignableFrom(l.getClass())) {
    ((ClearLifecycleListener)l).postClear(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.CLEAR));
  }
break;
case CREATE:
if (CreateLifecycleListener.class.isAssignableFrom(l.getClass())) {
((CreateLifecycleListener)l).postCreate(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.CREATE));
}
break;
case PRE_DELETE:
if (DeleteLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DeleteLifecycleListener)l).preDelete(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DELETE));
}
break;
case POST_DELETE:
if (DeleteLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DeleteLifecycleListener)l).postDelete(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DELETE));
}
break;
case PRE_DIRTY:
if (DirtyLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DirtyLifecycleListener)l).preDirty(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DIRTY));
}
break;
case POST_DIRTY:
if (DirtyLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DirtyLifecycleListener)l).postDirty(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DIRTY));
}
break;
case LOAD:
if (LoadLifecycleListener.class.isAssignableFrom(l.getClass())) {
((LoadLifecycleListener)l).postLoad(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.LOAD));
}
break;
case PRE_STORE:
if (StoreLifecycleListener.class.isAssignableFrom(l.getClass())) {
((StoreLifecycleListener)l).preStore(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.STORE));
}
break;
case POST_STORE:
if (StoreLifecycleListener.class.isAssignableFrom(l.getClass())) {
((StoreLifecycleListener)l).postStore(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.STORE));
}
break;
default :
throw new IllegalArgumentException(event.name());
}
}
}

Fixed version (ground truth):
public void notifyEvent(ZooPCImpl src,ZooInstanceEvent event){
  if (def.getSuperDef() != null) {
    def.getSuperDef().getProvidedContext().notifyEvent(src,event);
  }
  if (listeners == null || src.getClass() == ZooClassDef.class) {
    return;
  }
  for (  InstanceLifecycleListener l : listeners) {
switch (event) {
case PRE_CLEAR:
      if (ClearLifecycleListener.class.isAssignableFrom(l.getClass())) {
        ((ClearLifecycleListener)l).preClear(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.CLEAR));
      }
    break;
case POST_CLEAR:
  if (ClearLifecycleListener.class.isAssignableFrom(l.getClass())) {
    ((ClearLifecycleListener)l).postClear(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.CLEAR));
  }
break;
case CREATE:
if (CreateLifecycleListener.class.isAssignableFrom(l.getClass())) {
((CreateLifecycleListener)l).postCreate(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.CREATE));
}
break;
case PRE_DELETE:
if (DeleteLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DeleteLifecycleListener)l).preDelete(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DELETE));
}
break;
case POST_DELETE:
if (DeleteLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DeleteLifecycleListener)l).postDelete(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DELETE));
}
break;
case PRE_DIRTY:
if (DirtyLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DirtyLifecycleListener)l).preDirty(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DIRTY));
}
break;
case POST_DIRTY:
if (DirtyLifecycleListener.class.isAssignableFrom(l.getClass())) {
((DirtyLifecycleListener)l).postDirty(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.DIRTY));
}
break;
case LOAD:
if (LoadLifecycleListener.class.isAssignableFrom(l.getClass())) {
((LoadLifecycleListener)l).postLoad(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.LOAD));
}
break;
case PRE_STORE:
if (StoreLifecycleListener.class.isAssignableFrom(l.getClass())) {
((StoreLifecycleListener)l).preStore(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.STORE));
}
break;
case POST_STORE:
if (StoreLifecycleListener.class.isAssignableFrom(l.getClass())) {
((StoreLifecycleListener)l).postStore(new InstanceLifecycleEvent(src,InstanceLifecycleEvent.STORE));
}
break;
default :
throw new IllegalArgumentException(event.name());
}
}
}