java.lang.IllegalAccessError: class com.sun.media.sou nd.AbstractPlayer cannot access its superclass com.sun.media.sound.AbstractMidiD evice

Coderanch | Ernst Jan Reuvekamp | 5 years ago
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  1. 0

    sequencer = MidiSystem.getSequencer();

    Coderanch | 5 years ago | Ernst Jan Reuvekamp
    java.lang.IllegalAccessError: class com.sun.media.sou nd.AbstractPlayer cannot access its superclass com.sun.media.sound.AbstractMidiD evice

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    Root Cause Analysis

    1. java.lang.IllegalAccessError

      class com.sun.media.sou nd.AbstractPlayer cannot access its superclass com.sun.media.sound.AbstractMidiD evice

      at java.lang.ClassLoader.defineClass1()
    2. Java RT
      MidiSystem.getSequencer
      1. java.lang.ClassLoader.defineClass1(Native Method)
      2. java.lang.ClassLoader.defineClass(Unknown Source)
      3. java.security.SecureClassLoader.defineClass(Unknown Source)
      4. java.net.URLClassLoader.defineClass(Unknown Source)
      5. java.net.URLClassLoader.access$100(Unknown Source)
      6. java.net.URLClassLoader$1.run(Unknown Source)
      7. java.net.URLClassLoader$1.run(Unknown Source)
      8. java.security.AccessController.doPrivileged(Native Method)
      9. java.net.URLClassLoader.findClass(Unknown Source)
      10. sun.misc.Launcher$ExtClassLoader.findClass(Unknown Source)
      11. java.lang.ClassLoader.loadClass(Unknown Source)
      12. java.lang.ClassLoader.loadClass(Unknown Source)
      13. java.lang.ClassLoader.defineClass1(Native Method)
      14. java.lang.ClassLoader.defineClass(Unknown Source)
      15. java.security.SecureClassLoader.defineClass(Unknown Source)
      16. java.net.URLClassLoader.defineClass(Unknown Source)
      17. java.net.URLClassLoader.access$100(Unknown Source)
      18. java.net.URLClassLoader$1.run(Unknown Source)
      19. java.net.URLClassLoader$1.run(Unknown Source)
      20. java.security.AccessController.doPrivileged(Native Method)
      21. java.net.URLClassLoader.findClass(Unknown Source)
      22. sun.misc.Launcher$ExtClassLoader.findClass(Unknown Source)
      23. java.lang.ClassLoader.loadClass(Unknown Source)
      24. java.lang.ClassLoader.loadClass(Unknown Source)
      25. com.sun.media.sound.MixerSequencerProvider.getDeviceInfo(MixerSequencerProvider.java:28)
      26. javax.sound.midi.MidiSystem.getFirstDevice(Unknown Source)
      27. javax.sound.midi.MidiSystem.getFirstDevice(Unknown Source)
      28. javax.sound.midi.MidiSystem.getFirstDevice(Unknown Source)
      29. javax.sound.midi.MidiSystem.getDefaultDevice(Unknown Source)
      30. javax.sound.midi.MidiSystem.getDefaultDeviceWrapper(Unknown Source)
      31. javax.sound.midi.MidiSystem.getSequencer(Unknown Source)
      32. javax.sound.midi.MidiSystem.getSequencer(Unknown Source)
      32 frames
    3. Unknown
      BeatBox.main
      1. BeatBox.setUpMidi(BeatBox.java:87)
      2. BeatBox.buildGUI(BeatBox.java:77)
      3. BeatBox.main(BeatBox.java:25)
      3 frames