@Override
  public boolean isPasteEnabled(@NotNull DataContext dataContext) {
    final Project project = CommonDataKeys.PROJECT.getData(dataContext);
    String fqn = getCopiedFqn(dataContext);
    return project != null && fqn != null && QualifiedNameProviderUtil.qualifiedNameToElement(fqn, project) != null;
  }
@Override
  public boolean isPasteEnabled(@NotNull DataContext dataContext)