java.lang.RuntimeException: Unable to pause activity {com.music.track/com.music.track.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.media.MediaPlayer.isPlaying()' on a null object reference

Stack Overflow | Devansh | 8 months ago
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  1. 0

    onPause() crashes when calling mediaplayer.isPlaying()

    Stack Overflow | 8 months ago | Devansh
    java.lang.RuntimeException: Unable to pause activity {com.music.track/com.music.track.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.media.MediaPlayer.isPlaying()' on a null object reference
  2. 0

    GitHub comment 34#261095737

    GitHub | 4 months ago | xylik
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.os.Handler.sendEmptyMessage(int)' on a null object reference
  3. 0

    High score to bundle crashing

    GitHub | 1 year ago | GoogleCodeExporter
    java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'boolean android.media.MediaPlayer.isPlaying()' on a null object reference

      at com.music.track.MainActivity.onPause()
    2. com.music.track
      MainActivity.onPause
      1. com.music.track.MainActivity.onPause(MainActivity.java:186)
      1 frame
    3. Android Platform
      ActivityThread.performPauseActivity
      1. android.app.Activity.performPause(Activity.java:6397)
      2. android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1380)
      3. android.app.ActivityThread.performPauseActivity(ActivityThread.java:3435)
      3 frames