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Attempt to invoke interface method 'int java.util.List.size()' on a null object reference
java.lang.NullPointerException: Attempt to invoke interface method 'int java.util.List.size()' on a null object reference at com.example.lightning.adminapp.data.ListAdapterClass.getCount(ListAdapterClass.java:33) at android.widget.ListView.setAdapter(ListView.java:506) at com.example.lightning.adminapp.EventListActivity$GetHttpResponse.onPostExecute(EventListActivity.java:166) at com.example.lightning.adminapp.EventListActivity$GetHttpResponse.onPostExecute(EventListActivity.java:76) at android.os.AsyncTask.finish(AsyncTask.java:662)