title: Android console displays: W/art: Attempt to remove non-JNI local reference
body: <p>I've just setup my first Cordova project and installed OneSignal push notifications.  This is all working as I expect, however the Android Developer Tools are showing this in the console:</p>
  
  <pre><code>W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  I/art: WaitForGcToComplete blocked for 6.202ms for cause Background
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  W/art: Attempt to remove non-JNI local reference, dumping thread
  </code></pre>
  
  <p>This message is constantly output while the app is running.</p>
  
  <p>What does it mean and how can I resolve whatever issue there is?</p>