query: nullpointerexception in AsyncTask in android studio
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 98780
negative_passages.text: Test Method throwing null pointer exception on custom setting
negative_passages.docid: 103797
negative_passages.text: Android:android.view.ViewRoot$CalledFromWrongThreadException - How to solve the problem?
negative_passages.docid: 143664
negative_passages.text: setOnClickListener crashs my android app
negative_passages.docid: 20020
negative_passages.text: NullPointerException accessing views in onCreate()
negative_passages.docid: 124773
negative_passages.text: NullPointerException when calling service in onResume
negative_passages.docid: 2116
negative_passages.text: IllegalArgumentException or NullPointerException for a null parameter?
negative_passages.docid: 23999
negative_passages.text: NullPointerException while parsing XML callout response
negative_passages.docid: 94342
negative_passages.text: Java - class.getResource returns null
negative_passages.docid: 31483
negative_passages.text: How to get JsonArray from a class who AsyncTask
negative_passages.docid: 66284
negative_passages.text: NullPointerException when Creating an Array of objects
negative_passages.docid: 149666
negative_passages.text: Why can't a null-reference exception name the object that has a null reference?
negative_passages.docid: 33103
negative_passages.text: How come invoking a (static) method on a null reference doesn't throw NullPointerException?
negative_passages.docid: 73120
negative_passages.text: Nullpointerexception when trying to send data from activity to class
negative_passages.docid: 71099
negative_passages.text: AsyncTask and error handling on Android
negative_passages.docid: 80631
negative_passages.text: NullPointerException but compiling?
negative_passages.docid: 58040
negative_passages.text: Android SDK AsyncTask doInBackground not running (subclass)