java.lang.NullPointerException

Oracle Community | 807596 | 1 decade ago
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  1. 0

    change from old to new event handling

    Oracle Community | 1 decade ago | 807596
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at SampleTrial$button1.actionPerformed()
    2. Unknown
      SampleTrial$button1.actionPerformed
      1. SampleTrial$button1.actionPerformed(SampleTrial.java:166)
      1 frame
    3. Java RT
      EventDispatchThread.run
      1. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      2. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      3. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      4. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      5. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      6. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      7. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      8. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      9. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      10. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      11. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      12. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      13. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      14. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      15. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      16. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      17. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      18. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      19. java.awt.AWTEventMulticaster.actionPerformed(Unknown Source)
      20. java.awt.Button.processActionEvent(Unknown Source)
      21. java.awt.Button.processEvent(Unknown Source)
      22. java.awt.Component.dispatchEventImpl(Unknown Source)
      23. java.awt.Component.dispatchEvent(Unknown Source)
      24. java.awt.EventQueue.dispatchEvent(Unknown Source)
      25. java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
      26. java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
      27. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      28. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      29. java.awt.EventDispatchThread.run(Unknown Source)
      29 frames