小编Oma*_*lOl的帖子

我不打算提出问题，但我没有解决这个问题！
我在从 IMAP 服务器接收消息时遇到问题。
错误说“由：java.lang.ClassNotFoundException：在路径上找不到类“java.awt.datatransfer.Transferable”......”这是我的代码：

enter String test(){
    String all="";
    try{
        class Runner extends AsyncTask<Object, String, String> {
            @Override
            protected String doInBackground(Object... params) {
                Looper.prepare();
                String all ="";
                try{
                    Message[] msgs = ReceiveMail("imap.gmail.com","993","USER@gmail.com","PASS"); // After passing this line, error logging says error is in this line!
                    for(Message m: msgs){
                        all+=m.getSubject()+"\n"+m.getContent().toString()+"\n\n"; // Error shows here, but popups above
                    }
                    return all;
                }catch (Exception e){
                    e.printStackTrace();
                }
                Looper.loop();
                return all;
            }
        }
        Runner r = new Runner();
        all = r.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, this).get();
    }catch …