title: Null pointer exception with linked hashmap
body: <p>Crashlytics is showing a few crashes on the following line:</p>
  
  <pre><code>if(appObj.getStationsList().get(tag)!=null){
  </code></pre>
  
  <p><code>getStationsList()</code> returns a <code>LinkedHashMap&lt;String, StationInfo&gt;</code>. How can I avoid getting this error? It's ironic that my very check to avoid this error actually resulted in it.</p>