@NotNull
  @Override
  public List<DiffTool> getDiffTools() {
    List<DiffTool> result = new ArrayList<>();
    result.addAll(DiffTool.EP_NAME.getExtensionList());
    result.add(SimpleDiffTool.INSTANCE);
    result.add(UnifiedDiffTool.INSTANCE);
    result.add(BinaryDiffTool.INSTANCE);
    result.add(DirDiffTool.INSTANCE);
    return result;
  }
@NotNull
  @Override
  public List<DiffTool> getDiffTools()