Android Application TCP Client Suddenly Closed Log Cat Showing surch errors any idea

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05-11 21:32:50.182: D/dalvikvm(2446): GC_CONCURRENT freed 60K, 6% free 3085K/3264K, paused 4ms+4ms, total 77ms
05-11 21:32:54.222: D/AndroidRuntime(2446): Shutting down VM
05-11 21:32:54.222: W/dalvikvm(2446): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
05-11 21:32:54.274: E/AndroidRuntime(2446): FATAL EXCEPTION: main
05-11 21:32:54.274: E/AndroidRuntime(2446): android.os.NetworkOnMainThreadException
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
05-11 21:32:54.274: E/AndroidRuntime(2446): at libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:163)
05-11 21:32:54.274: E/AndroidRuntime(2446): at libcore.io.IoBridge.recvfrom(IoBridge.java:513)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.net.PlainSocketImpl.read(PlainSocketImpl.java:488)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.io.InputStreamReader.read(InputStreamReader.java:244)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.io.BufferedReader.fillBuf(BufferedReader.java:130)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.io.BufferedReader.readLine(BufferedReader.java:354)
05-11 21:32:54.274: E/AndroidRuntime(2446): at com.example.aclient_connect.MainActivity$2.run(MainActivity.java:175)
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.app.Activity.runOnUiThread(Activity.java:4644)
05-11 21:32:54.274: E/AndroidRuntime(2446): at com.example.aclient_connect.MainActivity.sendDataOverCommunication(MainActivity.java:164)
05-11 21:32:54.274: E/AndroidRuntime(2446): at com.example.aclient_connect.MainActivity.onClick(MainActivity.java:69)
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.view.View.performClick(View.java:4204)
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.view.View$PerformClick.run(View.java:17355)
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.os.Handler.handleCallback(Handler.java:725)
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.os.Handler.dispatchMessage(Handler.java:92)
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.os.Looper.loop(Looper.java:137)
05-11 21:32:54.274: E/AndroidRuntime(2446): at android.app.ActivityThread.main(ActivityThread.java:5041)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.lang.reflect.Method.invokeNative(Native Method)
05-11 21:32:54.274: E/AndroidRuntime(2446): at java.lang.reflect.Method.invoke(Method.java:511)
05-11 21:32:54.274: E/AndroidRuntime(2446): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
05-11 21:32:54.274: E/AndroidRuntime(2446): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
05-11 21:32:54.274: E/AndroidRuntime(2446): at dalvik.system.NativeStart.main(Native Method)
05-11 21:32:56.442: I/Process(2446): Sending signal. PID: 2446 SIG: 9

Posted 11-May-15 11:36am

Muhammad Amman

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Comments

Sergey Alexandrovich Kryukov 11-May-15 17:55pm

Excuse me, what's the use of exception stack if we cannot see the code throwing the exception?
—SA

Muhammad Amman 12-May-15 2:59am

When I send data after connection establish from client side data received on server end but application is closed suddenly.
private void sendData()
{
runOnUiThread(new Runnable() {
@Override
public void run(){
try
{
if(client.isClosed())
setUpIOStreams();
String sentence = msgbox.getText().toString();
out.writeBytes(sentence);
//Log.d("Sent ", sentence);
sentence = in.readLine();
msgbox.setText(sentence);
//Log.d("Received ", sentence);

out.flush();
out.close();
in.close();
client.close();
}
catch(IOException e)
{
Log.d("Caused ", e.getCause().toString() + e.getMessage());
setValues(R.id.ipBox,true);
setValues(R.id.connect,false);
setValues(R.id.send,false);
setValues(R.id.msgBox,false);

}

}}
);
}

private void setUpIOStreams()
{
try
{

Thread thread = new Thread(new Runnable(){
@Override
public void run() {
try {
InetAddress addr = InetAddress.getByName(ipBox.getText().toString());
client = new Socket(addr,5800);
out = new DataOutputStream(client.getOutputStream());
in = new BufferedReader(new InputStreamReader(client.getInputStream()));
} catch (Exception e) {
e.printStackTrace();
}
}
});

thread.start();
/*
InetAddress addr = InetAddress.getByName(ipBox.getText().toString());
client = new Socket(addr,5800);
out = new DataOutputStream(client.getOutputStream());
in = new BufferedReader(new InputStreamReader(client.getInputStream()));*/
}
catch(Exception e)
{
Toast.makeText(this, "Connection Problem", Toast.LENGTH_LONG).show();
Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show();
}
}

Sergey Alexandrovich Kryukov 12-May-15 8:35am

Code in comments is poorly readable. Please move it to the question using "Improve question".
—SA

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