java.lang.NullPointerException

Coderanch | Lisa Tostrams | 4 years ago
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    nullpointerexceptions, can anybody help?

    Coderanch | 4 years ago | Lisa Tostrams
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at vogels.model.VogelModel.update()
    2. vogels.model
      VogelModel.update
      1. vogels.model.VogelModel.update(VogelModel.java:36)
      1 frame
    3. vogels.controller
      Controller.update
      1. vogels.controller.Controller.update(Controller.java:23)
      1 frame
    4. vogels.view
      View$3.actionPerformed
      1. vogels.view.View$3.actionPerformed(View.java:95)
      1 frame
    5. Java RT
      EventDispatchThread.run
      1. javax.swing.Timer.fireActionPerformed(Timer.java:313)
      2. javax.swing.Timer$DoPostEvent.run(Timer.java:244)
      3. java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226)
      4. java.awt.EventQueue.dispatchEventImpl(EventQueue.java:670)
      5. java.awt.EventQueue.access$400(EventQueue.java:96)
      6. java.awt.EventQueue$2.run(EventQueue.java:631)
      7. java.awt.EventQueue$2.run(EventQueue.java:629)
      8. java.security.AccessController.doPrivileged(Native Method)
      9. java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
      10. java.awt.EventQueue.dispatchEvent(EventQueue.java:640)
      11. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
      12. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
      13. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
      14. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
      15. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
      16. java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
      16 frames