query: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.media.MediaPlayer.start()' on a null object reference
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 102874
negative_passages.text: Start an activity from a fragment
negative_passages.docid: 73285
negative_passages.text: Null Pointer Exception in XMl Parsing
negative_passages.docid: 119573
negative_passages.text: NullPointerException in Java with no StackTrace
negative_passages.docid: 3984
negative_passages.text: How to fix 'android.os.NetworkOnMainThreadException'?
negative_passages.docid: 32065
negative_passages.text: Attempt to de-reference a null object: Trigger
negative_passages.docid: 143664
negative_passages.text: setOnClickListener crashs my android app
negative_passages.docid: 134538
negative_passages.text: Android Resources$NotFoundException
negative_passages.docid: 144770
negative_passages.text: startActivity not working
negative_passages.docid: 46857
negative_passages.text: Compiler warning: null reference exception
negative_passages.docid: 46944
negative_passages.text: Null pointer Exception - findViewById()
negative_passages.docid: 10818
negative_passages.text: NullPointerException : println needs a message in android
negative_passages.docid: 144658
negative_passages.text: System.NullPointerException: Attempt to de-reference a null object ,sravn
negative_passages.docid: 2727
negative_passages.text: Android How to use MediaScannerConnection scanFile
negative_passages.docid: 81518
negative_passages.text: Find out what variable is throwing a NullPointerException programmatically
negative_passages.docid: 24887
negative_passages.text: java.lang.NullPointerException at javax.faces.webapp.UIComponentClassicTagBase.setJspId
negative_passages.docid: 101059
negative_passages.text: Android - android.os.NetworkOnMainThreadException