title: IntentService RuntimeException
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/5027147/android-runtimeexception-unable-to-instantiate-the-service">Android RuntimeException: Unable to instantiate the service</a>  </p>
  </blockquote>
  
  
  
  <p>Problem: starting an <code>IntentService</code> generates a <code>RuntimeException</code>.</p>
  
  <p>I'm clueless. If you need more info, just ask. Log:</p>
  
  <pre><code>D/dalvikvm( 6839): newInstance failed: no &lt;init&gt;()
  D/AndroidRuntime( 6839): Shutting down VM
  W/dalvikvm( 6839): threadid=1: thread exiting with uncaught exception (group=0x40015560)
  E/AndroidRuntime( 6839): FATAL EXCEPTION: main
  E/AndroidRuntime( 6839): java.lang.RuntimeException: Unable to instantiate service org.xyz.android.service.MyService: java.lang.InstantiationException: org.xyz.android.service.MyService
  E/AndroidRuntime( 6839):    at android.app.ActivityThread.handleCreateService(ActivityThread.java:1929)
  E/AndroidRuntime( 6839):    at android.app.ActivityThread.access$2500(ActivityThread.java:117)
  E/AndroidRuntime( 6839):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985)
  E/AndroidRuntime( 6839):    at android.os.Handler.dispatchMessage(Handler.java:99)
  E/AndroidRuntime( 6839):    at android.os.Looper.loop(Looper.java:130)
  E/AndroidRuntime( 6839):    at android.app.ActivityThread.main(ActivityThread.java:3683)
  E/AndroidRuntime( 6839):    at java.lang.reflect.Method.invokeNative(Native Method)
  E/AndroidRuntime( 6839):    at java.lang.reflect.Method.invoke(Method.java:507)
  E/AndroidRuntime( 6839):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
  E/AndroidRuntime( 6839):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
  E/AndroidRuntime( 6839):    at dalvik.system.NativeStart.main(Native Method)
  E/AndroidRuntime( 6839): Caused by: java.lang.InstantiationException: org.xyz.android.service.MyService
  E/AndroidRuntime( 6839):    at java.lang.Class.newInstanceImpl(Native Method)
  E/AndroidRuntime( 6839):    at java.lang.Class.newInstance(Class.java:1409)
  E/AndroidRuntime( 6839):    at android.app.ActivityThread.handleCreateService(ActivityThread.java:1926)
  E/AndroidRuntime( 6839):    ... 10 more
  </code></pre>
  
  <p>This code calls the service (it's being called from a <code>ContentProvider</code>):</p>
  
  <pre><code>Intent i = new Intent(
          getContext(),
          MyService.class);
      i.putStringArrayListExtra(EXTRA_MISSING, missingMonths);
      i.putExtra(EXTRA_URI, uri);
      i.putExtra(EXTRA_START, startTime);
      i.putExtra(EXTRA_END, endTime);
      getContext().startService(i);
  </code></pre>
  
  <p>And this is the <code>IntentService</code> relevant code blocks (there are only two methods. Besides the asynctask itself, of course):</p>
  
  <pre><code>public MyService(String name) {
      super("MyService");
  }
  
  @Override
  protected void onHandleIntent(Intent intent) {
          // ... do stuff
          new DownloaderTask().execute(missingMonths);
  }
  </code></pre>