private static void copyDocComment(@NotNull PsiMethod source, @NotNull PsiMethod target, @NotNull JVMElementFactory factory) {
    final PsiElement navigationElement = source.getNavigationElement();
    if (navigationElement instanceof PsiDocCommentOwner) {
      final PsiDocComment docComment = ((PsiDocCommentOwner)navigationElement).getDocComment();
      if (docComment != null) {
        target.addAfter(factory.createDocCommentFromText(docComment.getText()), null);
      }
    }
    final PsiParameter[] sourceParameters = source.getParameterList().getParameters();
    final PsiParameterList targetParameterList = target.getParameterList();
    CommonJavaRefactoringUtil.fixJavadocsForParams(target, Set.of(targetParameterList.getParameters()), pair -> {
      final int parameterIndex = targetParameterList.getParameterIndex(pair.first);
      if (parameterIndex >= 0 && parameterIndex < sourceParameters.length) {
        return Comparing.strEqual(pair.second, sourceParameters[parameterIndex].getName());
      }
      return false;
    });
  }
private static void copyDocComment(@NotNull PsiMethod source, @NotNull PsiMethod target, @NotNull JVMElementFactory factory)