query: null pointer exception in async task
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 67417
negative_passages.text: await vs Task.Wait - Deadlock?
negative_passages.docid: 124773
negative_passages.text: NullPointerException when calling service in onResume
negative_passages.docid: 95740
negative_passages.text: C# SynchronizationLockException on Monitor.Exit when async method called from Timer
negative_passages.docid: 3996
negative_passages.text: async-ajax call not working as expected
negative_passages.docid: 144658
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object ,sravn
negative_passages.docid: 289
negative_passages.text: What is a NullReferenceException, and how do I fix it?
negative_passages.docid: 46857
negative_passages.text: Compiler warning: null reference exception
negative_passages.docid: 58054
negative_passages.text: When is it OK to catch NullPointerException?
negative_passages.docid: 1651
negative_passages.text: IllegalMonitorStateException on wait() call
negative_passages.docid: 98866
negative_passages.text: Null Pointer Exception on getGraphics()
negative_passages.docid: 31483
negative_passages.text: How to get JsonArray from a class who AsyncTask
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?
negative_passages.docid: 30139
negative_passages.text: How to convert http Web Request to asynchronous requests using aysnc and await
negative_passages.docid: 87189
negative_passages.text: System.NullPointerException
negative_passages.docid: 58040
negative_passages.text: Android SDK AsyncTask doInBackground not running (subclass)
negative_passages.docid: 60123
negative_passages.text: System.CalloutException: You have uncommitted work pending