AllJoyn Bus阻塞异常

Question

我正在尝试在Android上使用AllJoyn进行设备发现工作。在示例应用程序之后，我能够获得findAdvertisedName的回调并能够加入会话。但是当调用proxyBusObject上的任何方法时，它会消除BusBlocked异常。尽管使用SignalEmitter，BusSignals仍能正常工作。

mBus = new BusAttachment(context.getPackageName(), BusAttachment.RemoteMessage.Receive);
mBus.enableConcurrentCallbacks();
status = mBus.connect();
if (Status.OK != status) {
    return;
} else {
    busAttachmentState = BusAttachmentState.CONNECTED;
}

mBus.registerBusListener(new BusListener() {
@Override
public void foundAdvertisedName(String name,
   short transport,
   String namePrefix) {
      mBus.enableConcurrentCallbacks();
      short contactPort = CONTACT_PORT;
      SessionOpts sessionOpts = new SessionOpts();
      sessionOpts.traffic = SessionOpts.TRAFFIC_MESSAGES;
         sessionOpts.isMultipoint = false;
         sessionOpts.proximity = SessionOpts.PROXIMITY_ANY;
      sessionOpts.transports = SessionOpts.TRANSPORT_ANY;

      Mutable.IntegerValue sessionId = new Mutable.IntegerValue();

      Status status = mBus.joinSession(name,
contactPort,
sessionId,
sessionOpts,
new SessionListener());

   mProxyObj = mBus.getProxyBusObject("com.my.well.known.name",
      "/MyService",
         sessionId.value,
            new Class[] { SampleInterface.class });
   mSampleInterface = mProxyObj.getInterface(SampleInterface.class);
   mSampleInterface.Test(); // BusMethod call throws exception every time
});

我也试过在一个单独的线程上调用busMethod但是得到了同样的错误。有谁知道这里可能出现什么问题？

更新：编辑代码以添加BusAttachment创建代码段。