@Nullable
    @Override
    public List<StackFrameItem> getStack(@NotNull ObjectReference reference) {
      final List<StackFrameItem> stack = extract(myType2Reference2Stack, reference);
      return stack != null ? stack : extract(myPinnedType2Reference2Stack, reference);
    }
@Nullable
    @Override
    public List<StackFrameItem> getStack(@NotNull ObjectReference reference)