Question

我试图在Gottox SocketIO的帮助下从Android应用程序连接到Socket IO。它在Android版本下工作正常，但是在V4.4.2上总是让我得到一个NullPointerException！

建立连接如下：

    SSLContext ssl_context = null;
    try {
        ssl_context = SSLContext.getInstance("TLS", "HarmonyJSSE"); 
    } catch (NoSuchAlgorithmException |  KeyManagementException | NoSuchProviderException  e) { //
        Log.e(LOGIDENT,e.getMessage());
    }
_socket = new SocketIO("SOCKETURI");
_socket.connect(new IOCallback() { ... });

这是StackTrace：

12-12 15:41:13.355  21152-21308/com.mynamespace W/System.err﹕ java.lang.NullPointerException
12-12 15:41:13.375  21152-21308/com.mynamespace W/System.err﹕ at com.android.org.conscrypt.SSLSocketWrapper.initTransportLayer(SSLSocketWrapper.java:48)
12-12 15:41:13.380  21152-21308/com.mynamespace W/System.err﹕ at com.android.org.conscrypt.SSLSocketImpl.init(SSLSocketImpl.java:186)
12-12 15:41:13.380  21152-21308/com.mynamespace W/System.err﹕ at com.android.org.conscrypt.SSLSocketImpl.<init>(SSLSocketImpl.java:111)
12-12 15:41:13.385  21152-21308/com.mynamespace W/System.err﹕ at com.android.org.conscrypt.SSLSocketWrapper.<init>(SSLSocketWrapper.java:37)
12-12 15:41:13.390  21152-21308/com.mynamespace W/System.err﹕ at com.android.org.conscrypt.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:91)
12-12 15:41:13.400  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.Connection.upgradeToTls(Connection.java:999)
12-12 15:41:13.405  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.Connection.connect(Connection.java:955)
12-12 15:41:13.415  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:411)
12-12 15:41:13.430  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:343)
12-12 15:41:13.440  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:289)
12-12 15:41:13.440  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345)
12-12 15:41:13.440  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:296)
12-12 15:41:13.445  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:179)
12-12 15:41:13.450  21152-21308/com.mynamespace W/System.err﹕ at com.android.okhttp.internal.http.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:246)
12-12 15:41:13.455  21152-21308/com.mynamespace W/System.err﹕ at io.socket.IOConnection.handshake(IOConnection.java:317)
12-12 15:41:13.460  21152-21308/com.mynamespace W/System.err﹕ at io.socket.IOConnection.access$600(IOConnection.java:43)
12-12 15:41:13.460  21152-21308/com.mynamespace W/System.err﹕ at io.socket.IOConnection$ConnectThread.run(IOConnection.java:203)

有人知道这个问题还是类似问题？或者是否有可能进入com.android.okhttp.Connection.upgradeToTls，因为我无法在任何可在线获取的来源中找到第999行。

Answer 1

我能够解决这个问题的唯一方法是更新到最新的Java-WebSocket并更改Gottox SocketIO的WebsocketTransport实现以传入新的套接字，而不是使用旧的DefaultWebSocketFactory根据我对issue的评论，并就此PR提供了解决方案。

打开SSL套接字到socket-io服务器的NullPointerException

1 个答案: