I retrieve some data from json in asyntask and go to another page without finishing retrieve data in json. Socket exception (warning) is occured. Here is the log cat.
04-24 07:41:45.565: W/SingleClientConnManager(2504): Invalid use of SingleClientConnManager: connection still allocated.
04-24 07:41:45.565: W/SingleClientConnManager(2504): Make sure to release the connection before allocating another one.
04-24 07:41:45.795: W/System.err(2504): java.net.SocketException: Socket closed
04-24 07:41:45.845: W/System.err(2504): at libcore.io.Posix.recvfromBytes(Native Method)
04-24 07:41:45.845: W/System.err(2504): at libcore.io.Posix.recvfrom(Posix.java:141)
04-24 07:41:45.845: W/System.err(2504): at libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:164)
04-24 07:41:45.855: W/System.err(2504): at libcore.io.IoBridge.recvfrom(IoBridge.java:506)
04-24 07:41:45.855: W/System.err(2504): at java.net.PlainSocketImpl.read(PlainSocketImpl.java:488)
04-24 07:41:45.895: W/System.err(2504): at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46)
04-24 07:41:46.005: W/System.err(2504): at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240)
04-24 07:41:46.005: W/System.err(2504): at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:103)
04-24 07:41:46.095: W/System.err(2504): at org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:134)
04-24 07:41:46.135: W/System.err(2504): at org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:161)
04-24 07:41:46.135: W/System.err(2504): at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:159)
04-24 07:41:46.145: W/System.err(2504): at java.io.InputStreamReader.read(InputStreamReader.java:233)
04-24 07:41:46.145: W/System.err(2504): at java.io.BufferedReader.fillBuf(BufferedReader.java:145)
04-24 07:41:46.145: W/System.err(2504): at java.io.BufferedReader.readLine(BufferedReader.java:397)
04-24 07:41:46.145: W/System.err(2504): at com.speedlink.common.Global.executeHttpPost(Global.java:76)
04-24 07:41:46.145: W/System.err(2504): at com.speedlink.common.WheelDataRetriever.doInBackground(WheelDataRetriever.java:46)
04-24 07:41:46.145: W/System.err(2504): at com.speedlink.common.WheelDataRetriever.doInBackground(WheelDataRetriever.java:1)
04-24 07:41:46.225: W/System.err(2504): at android.os.AsyncTask$2.call(AsyncTask.java:288)
04-24 07:41:46.255: W/System.err(2504): at java.util.concurrent.FutureTask.run(FutureTask.java:237)
04-24 07:41:46.265: W/System.err(2504): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
04-24 07:41:46.265: W/System.err(2504): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
04-24 07:41:46.305: W/System.err(2504): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
04-24 07:41:46.305: W/System.err(2504): at java.lang.Thread.run(Thread.java:841)
How can I solve this warning?
Edit:
protected String doInBackground(String... arg0) {
if (isCancelled()){
cancel(true);
return "";
}else{
try {
postParameters.add(new BasicNameValuePair("keyCode",Encode.getKeyCode()));
postParameters.add(new BasicNameValuePair("version",Encode.getVersion()));
string response = vv.executeHttpPost(vv.common_URL()+"abc.php",postParameters);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
