发现时出现SocketTimeoutException

Question

我正在尝试使用在github上找到的开源项目。

此项目正在使用套接字与2或模式设备进行通信...

我的问题是，当代码发现服务器（平板电脑）时，我收到此错误：

  W/System.err:     at libcore.io.IoBridge.maybeThrowAfterRecvfrom(IoBridge.java:594)
     W/System.err:     at libcore.io.IoBridge.recvfrom(IoBridge.java:552)
     W/System.err:     at java.net.PlainDatagramSocketImpl.doRecv(PlainDatagramSocketImpl.java:163)
     W/System.err:     at java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:171)
   W/System.err:     at java.net.DatagramSocket.receive(DatagramSocket.java:274)
     W/System.err:     at edu.vub.at.commlib.CommLib.discover(CommLib.java:117)
     W/System.err:     at edu.vub.at.nfcpoker.comm.DiscoveryAsyncTask.doInBackground(DiscoveryAsyncTask.java:60)
     W/System.err:     at edu.vub.at.nfcpoker.comm.DiscoveryAsyncTask.doInBackground(DiscoveryAsyncTask.java:35)
     W/System.err:     at android.os.AsyncTask$2.call(AsyncTask.java:295)
     W/System.err:     at java.util.concurrent.FutureTask.run(FutureTask.java:237)
     W/System.err:     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
     W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
     W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
     W/System.err:     at java.lang.Thread.run(Thread.java:818)
     W/System.err: Caused by: android.system.ErrnoException: recvfrom failed: EAGAIN (Try again)
     W/System.err:     at libcore.io.Posix.recvfromBytes(Native Method)
     W/System.err:     at libcore.io.Posix.recvfrom(Posix.java:189)
     W/System.err:     at libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:250)
     W/System.err:     at libcore.io.IoBridge.recvfrom(IoBridge.java:549)
    W/System.err:   ... 12 more

我的方法是：

public static CommLibConnectionInfo discover(Class<?> klass, String broadcastAddress) throws IOException {
        final String targetClass = klass.getCanonicalName();
        Log.e(TAG, "discover: targetClass "+ targetClass);
        Kryo k = new Kryo();
        k.setRegistrationRequired(false);
        k.register(CommLibConnectionInfo.class);
        k.register(UUID.class, new UUIDSerializer());

        DatagramSocket ds = new DatagramSocket(DISCOVERY_PORT, InetAddress.getByName(broadcastAddress));
        ds.setBroadcast(true);
        ds.setReuseAddress(true);
        ds.setSoTimeout(DISCOVERY_TIMEOUT);
        DatagramPacket dp = new DatagramPacket(new byte[1024], 1024);
        try {

            ds.receive(dp);
            CommLibConnectionInfo clci = k.readObject(new Input(dp.getData()), CommLibConnectionInfo.class);
            if (clci.serverType_.equals(targetClass)) {
                ds.close();
                return clci;
            }
            return null;
        }catch (SocketException e) {
            e.printStackTrace();
            return  null;
        } catch (IOException e) {
            e.printStackTrace();
            return  null;
        } finally {
            ds.close();
        }
    }

此方法在线上发出异常：ds.receive（dp）;

该应用程序在Nexus和Lenovo上运行，但在三星设备上我正在接受此例外