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POFatal Exception Asynctask #1 java.lang.RuntimeException error occured while executing doInBackground()
 

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  1. POFatal Exception Asynctask #1 java.lang.RuntimeException error occured while executing doInBackground()
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    <p>i m trying to call web services method from android app but i get in error java.lang.RuntimeException error occured while executing doInBackground() and the app stopped i have saw alot of question about this but they solved by adding internet permission to the manifest file but its Didn't work to </p> <p>here is my code</p> <pre><code> package tony.ds_hw; import java.util.ArrayList; import java.util.List; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import org.json.JSONObject; import android.app.Activity; import android.app.ProgressDialog; import android.content.Intent; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class get_info extends Activity implements OnClickListener { Button infobutton; EditText nametext; private static String URL="http://192.168.1.102:8080/DS_HW-war/webresources/Getinfo"; private static final String GET_REQUEST="GET"; private static final String POST_REQUEST="POST"; JSONParser jsonParser=new JSONParser(); ProgressDialog pDialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); nametext=(EditText) findViewById(R.id.editText1); setContentView(R.layout.get_info); infobutton=(Button) findViewById(R.id.button1); infobutton.setOnClickListener(this); } @Override public void onClick(View v) { if (v.getId()==R.id.button1) { new Find().execute(URL); } } class Find extends AsyncTask&lt;String,Void,String&gt; { String json=null; @Override protected void onPreExecute() { super.onPreExecute(); pDialog = new ProgressDialog(get_info.this); pDialog.setMessage("Loading Please wait!"); pDialog.setIndeterminate(false); pDialog.setCancelable(true); pDialog.show(); Toast.makeText(get_info.this,"finsih pre",Toast.LENGTH_LONG).show(); } @Override protected String doInBackground(String... params) { String name =nametext.getText().toString(); List&lt;NameValuePair&gt; param=new ArrayList&lt;NameValuePair&gt;(); param.add(new BasicNameValuePair("name", name)); JSONObject jsonObject=jsonParser.makeHttpRequest(params[0], GET_REQUEST, param); json=jsonObject.toString(); if(json != null) { Log.d("msg","Success"); } else { Log.d("msg","Failed" ); } return json; } @Override protected void onPostExecute(String result) { // TODO Auto-generated method stub super.onPostExecute(result); pDialog.dismiss(); if(result!=null) { Toast.makeText(get_info.this,"Data Loaded successfully", Toast.LENGTH_LONG).show(); Intent i=new Intent(get_info.this,Result.class ).putExtra("jsonstring",result); finish(); startActivity(i); } else Toast.makeText(get_info.this,"Failed To Load Data", Toast.LENGTH_LONG).show(); } } } </code></pre> <p>and the logcat</p> <pre><code>12-31 23:35:58.593: E/AndroidRuntime(1124): FATAL EXCEPTION: AsyncTask #1 12-31 23:35:58.593: E/AndroidRuntime(1124): java.lang.RuntimeException: An error occured while executing doInBackground() 12-31 23:35:58.593: E/AndroidRuntime(1124): at android.os.AsyncTask$3.done(AsyncTask.java:278) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 12-31 23:35:58.593: E/AndroidRuntime(1124): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.lang.Thread.run(Thread.java:856) 12-31 23:35:58.593: E/AndroidRuntime(1124): Caused by: java.lang.NullPointerException 12-31 23:35:58.593: E/AndroidRuntime(1124): at tony.ds_hw.get_info$Find.doInBackground(get_info.java:73) 12-31 23:35:58.593: E/AndroidRuntime(1124): at tony.ds_hw.get_info$Find.doInBackground(get_info.java:1) 12-31 23:35:58.593: E/AndroidRuntime(1124): at android.os.AsyncTask$2.call(AsyncTask.java:264) 12-31 23:35:58.593: E/AndroidRuntime(1124): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 12-31 23:35:58.593: E/AndroidRuntime(1124): ... 5 more 12-31 23:35:58.943: E/WindowManager(1124): Activity tony.ds_hw.get_info has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@2be0f4a0 that was originally added here 12-31 23:35:58.943: E/WindowManager(1124): android.view.WindowLeaked: Activity tony.ds_hw.get_info has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@2be0f4a0 that was originally added here 12-31 23:35:58.943: E/WindowManager(1124): at android.view.ViewRootImpl.&lt;init&gt;(ViewRootImpl.java:344) 12-31 23:35:58.943: E/WindowManager(1124): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:267) 12-31 23:35:58.943: E/WindowManager(1124): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:215) 12-31 23:35:58.943: E/WindowManager(1124): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:140) 12-31 23:35:58.943: E/WindowManager(1124): at android.view.Window$LocalWindowManager.addView(Window.java:537) 12-31 23:35:58.943: E/WindowManager(1124): at android.app.Dialog.show(Dialog.java:278) 12-31 23:35:58.943: E/WindowManager(1124): at tony.ds_hw.get_info$Find.onPreExecute(get_info.java:67) 12-31 23:35:58.943: E/WindowManager(1124): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:561) 12-31 23:35:58.943: E/WindowManager(1124): at android.os.AsyncTask.execute(AsyncTask.java:511) 12-31 23:35:58.943: E/WindowManager(1124): at tony.ds_hw.get_info.onClick(get_info.java:51) 12-31 23:35:58.943: E/WindowManager(1124): at android.view.View.performClick(View.java:3534) 12-31 23:35:58.943: E/WindowManager(1124): at android.view.View$PerformClick.run(View.java:14263) 12-31 23:35:58.943: E/WindowManager(1124): at android.os.Handler.handleCallback(Handler.java:605) 12-31 23:35:58.943: E/WindowManager(1124): at android.os.Handler.dispatchMessage(Handler.java:92) 12-31 23:35:58.943: E/WindowManager(1124): at android.os.Looper.loop(Looper.java:137) 12-31 23:35:58.943: E/WindowManager(1124): at android.app.ActivityThread.main(ActivityThread.java:4441) 12-31 23:35:58.943: E/WindowManager(1124): at java.lang.reflect.Method.invokeNative(Native Method) 12-31 23:35:58.943: E/WindowManager(1124): at java.lang.reflect.Method.invoke(Method.java:511) 12-31 23:35:58.943: E/WindowManager(1124): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 12-31 23:35:58.943: E/WindowManager(1124): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 12-31 23:35:58.943: E/WindowManager(1124): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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