title: Activity.class - Class File Editor: The JAR file c:\sdk\platforms\android-17\android.jar has no source attachment
body: <p>For some reason a new tab opens in my debugger titled: <code>Activity.class</code> with a <strong><em>header stating</em></strong>: <code>Class File Editor</code> and the <strong><em>error stating</em></strong>: <code>The JAR file c:\sdk\platforms\android-17\android.jar has no source attachment</code>. You can attach a source by clicking attach source below. </p>
  
  <p>From there I tried adding it from my workspace however it still does not work (it simply says change attached source now instead) </p>
  
  <p>LOGCAT:</p>
  
  <pre><code>09-10 14:52:25.744: I/System.out(23760): Sending WAIT chunk
  09-10 14:50:58.191: D/dalvikvm(23118): Late-enabling CheckJNI
  09-10 14:50:58.291: E/Trace(23118): error opening trace file: No such file or directory (2)
  09-10 14:50:58.311: I/System.out(23118): Sending WAIT chunk
  09-10 14:50:58.311: W/ActivityThread(23118): Application com.example.test is waiting for the debugger on port 8100...
  09-10 14:50:58.331: I/dalvikvm(23118): Debugger is active
  09-10 14:50:58.511: I/System.out(23118): Debugger has connected
  09-10 14:50:58.521: I/System.out(23118): waiting for debugger to settle...
  09-10 14:50:58.721: I/System.out(23118): waiting for debugger to settle...
  09-10 14:50:58.922: I/System.out(23118): waiting for debugger to settle...
  09-10 14:50:59.122: I/System.out(23118): waiting for debugger to settle...
  09-10 14:50:59.322: I/System.out(23118): waiting for debugger to settle...
  09-10 14:50:59.522: I/System.out(23118): waiting for debugger to settle...
  09-10 14:50:59.722: I/System.out(23118): waiting for debugger to settle...
  09-10 14:50:59.923: I/System.out(23118): debugger has settled (1375)
  09-10 14:51:01.244: D/dalvikvm(23118): threadid=1: still suspended after undo (sc=1 dc=1)
  09-10 14:51:46.202: D/dalvikvm(23118): Debugger has detached; object registry had 188 entries
  09-10 14:51:46.202: I/dalvikvm(23118): ignoring registerObject request in thread=1
  09-10 14:51:46.202: I/dalvikvm(23118): ignoring registerObject request in thread=1
  09-10 14:51:46.352: D/libEGL(23118): loaded /system/lib/egl/libEGL_adreno200.so
  09-10 14:51:46.352: D/libEGL(23118): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
  09-10 14:51:46.352: D/libEGL(23118): loaded /system/lib/egl/libGLESv2_adreno200.so
  09-10 14:51:46.352: I/Adreno200-EGL(23118): &lt;qeglDrvAPI_eglInitialize:294&gt;: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_JB.04.01.01.00.036_msm8960_JB_CL2644550_release_AU (CL2644550)
  09-10 14:51:46.352: I/Adreno200-EGL(23118): Build Date: 07/31/12 Tue
  09-10 14:51:46.352: I/Adreno200-EGL(23118): Local Branch: 
  09-10 14:51:46.352: I/Adreno200-EGL(23118): Remote Branch: quic/master
  09-10 14:51:46.352: I/Adreno200-EGL(23118): Local Patches: NONE
  09-10 14:51:46.352: I/Adreno200-EGL(23118): Reconstruct Branch: AU_LINUX_ANDROID_JB.04.01.01.00.036 +  NOTHING
  09-10 14:51:46.382: D/OpenGLRenderer(23118): Enabling debug mode 0
  09-10 14:52:25.704: E/Trace(23760): error opening trace file: No such file or directory (2)
  09-10 14:52:25.724: W/ActivityThread(23760): Application com.example.test is waiting for the debugger on port 8100...
  09-10 14:52:25.884: I/dalvikvm(23760): Debugger is active
  09-10 14:52:25.944: I/System.out(23760): Debugger has connected
  09-10 14:52:25.944: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:26.145: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:26.345: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:26.545: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:26.745: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:26.945: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:27.156: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:27.356: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:27.556: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:27.756: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:27.957: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:28.157: I/System.out(23760): waiting for debugger to settle...
  09-10 14:52:28.357: I/System.out(23760): debugger has settled (1495)
  09-10 14:52:28.617: D/dalvikvm(23760): threadid=1: still suspended after undo (sc=1 dc=1)
  09-10 15:14:09.756: E/Trace(27219): error opening trace file: No such file or directory (2)
  09-10 15:14:09.766: I/System.out(27219): Sending WAIT chunk
  09-10 15:14:09.766: W/ActivityThread(27219): Application com.example.test is waiting for the debugger on port 8100...
  09-10 15:14:09.786: I/dalvikvm(27219): Debugger is active
  09-10 15:14:09.966: I/System.out(27219): Debugger has connected
  09-10 15:14:09.966: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:10.176: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:10.376: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:10.577: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:10.777: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:10.977: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:11.177: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:11.377: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:11.578: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:11.778: I/System.out(27219): waiting for debugger to settle...
  09-10 15:14:11.978: I/System.out(27219): debugger has settled (1496)
  09-10 15:14:12.729: D/dalvikvm(27219): threadid=1: still suspended after undo (sc=1 dc=1)
  </code></pre>
  
  <p>SOURCE:</p>
  
  <pre><code>package com.example.test;
  
  import java.io.BufferedReader;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.IOException;
  
  import org.jsoup.Jsoup;
  import org.jsoup.nodes.Document;
  import org.jsoup.nodes.Element;
  import org.jsoup.select.Elements;
  import org.apache.http.HttpResponse;
  import org.apache.http.client.methods.HttpGet;
  import org.apache.http.impl.client.DefaultHttpClient;
  
  import com.example.test.R;
  
  import android.app.Activity;
  import android.os.AsyncTask;
  import android.os.Bundle;
  import android.view.View;
  import android.widget.TextView;
  
  public class MainActivity extends Activity {
      private TextView textView;
  
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
          textView = (TextView) findViewById(R.id.TextView01);
      }
  
      private class DownloadWebPageTask extends AsyncTask&lt;String, Void, String&gt; {
          @Override
          protected String doInBackground(String... urls) {
              String response = "";
              for (String url : urls) {
                  DefaultHttpClient client = new DefaultHttpClient();
                  HttpGet httpGet = new HttpGet(url);
                  try {
                      Document doc;
                      // need http protocol
                      doc = Jsoup.connect("http://google.com").get();
  
                      // get page title
                      String title = doc.title();
                      System.out.println("title : " + title);
  
                      // get all links
                      Elements links = doc.select("a[href]");
                      for (Element link : links) {
  
                          // get the value from href attribute
                          System.out.println("\nlink : " + link.attr("href"));
                          System.out.println("text : " + link.text());
  
                      }
  
                  } catch (IOException e) {
                      e.printStackTrace();
                  }
              }
              return response;
          }
  
          @Override
          protected void onPostExecute(String result) {
              textView.setText(result);
          }
      }
  
      public void onClick(View view) {
          DownloadWebPageTask task = new DownloadWebPageTask();
          task.execute(new String[] { "http://www.google.com" });
      }
  }
  </code></pre>