title: React Native - Headless JS example
body: <p>The react native documentation about this seems more than incomplete. I was following this guide which doesn't seem to lead me anywhere:</p>
  
  <p><a href="https://facebook.github.io/react-native/releases/next/docs/headless-js-android.html#headless-js" rel="noreferrer">https://facebook.github.io/react-native/releases/next/docs/headless-js-android.html#headless-js</a></p>
  
  <p>Where am I supposed to put the .java file?
  How am I supposed to start the task?</p>