@Override
    public void pinStacks(@NotNull ReferenceType referenceType) {
      final Map<ObjectReference, List<StackFrameItem>> ref2Stack = myType2Reference2Stack.get(referenceType);
      if (ref2Stack != null) {
        myPinnedType2Reference2Stack.put(referenceType, ref2Stack);
      }
    }
@Override
    public void pinStacks(@NotNull ReferenceType referenceType)