java.lang.NullPointerException

Coderanch | Ryan O'Neill | 2 years ago
  1. 0

    GUI Phone Number Validation

    Coderanch | 2 years ago | Ryan O'Neill
    java.lang.NullPointerException
  2. 0

    GUI Phone Number Validation

    Coderanch | 2 years ago | Ryan O'Neill
    java.lang.NullPointerException
  3. Speed up your debug routine!

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  4. 0

    Unbalanced parens cause NullPointerException

    GitHub | 4 years ago | yayitswei
    java.lang.NullPointerException
  5. 0

    NullPointerException

    GitHub | 4 years ago | fordfrog
    java.lang.NullPointerException

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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.util.regex.Matcher.getTextLength()
  2. Java RT
    Pattern.matcher
    1. java.util.regex.Matcher.getTextLength(Matcher.java:1234)
    2. java.util.regex.Matcher.getTextLength(Matcher.java:1234)
    3. java.util.regex.Matcher.reset(Matcher.java:308)
    4. java.util.regex.Matcher.<init>(Matcher.java:228)
    5. java.util.regex.Pattern.matcher(Pattern.java:1088)
    5 frames
  3. pa4
    pa4View$AllWidgetsListener.actionPerformed
    1. pa4.pa4Delegate.validateMobileNumber(pa4Delegate.java:84)
    2. pa4.pa4View$AllWidgetsListener.actionPerformed(pa4View.java:140)
    2 frames
  4. Java RT
    EventDispatchThread.run
    1. javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
    2. javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
    3. javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
    4. javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
    5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
    6. java.awt.Component.processMouseEvent(Component.java:6516)
    7. javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
    8. java.awt.Component.processEvent(Component.java:6281)
    9. java.awt.Container.processEvent(Container.java:2229)
    10. java.awt.Component.dispatchEventImpl(Component.java:4872)
    11. java.awt.Container.dispatchEventImpl(Container.java:2287)
    12. java.awt.Component.dispatchEvent(Component.java:4698)
    13. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
    14. java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
    15. java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
    16. java.awt.Container.dispatchEventImpl(Container.java:2273)
    17. java.awt.Window.dispatchEventImpl(Window.java:2719)
    18. java.awt.Component.dispatchEvent(Component.java:4698)
    19. java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
    20. java.awt.EventQueue.access$200(EventQueue.java:103)
    21. java.awt.EventQueue$3.run(EventQueue.java:694)
    22. java.awt.EventQueue$3.run(EventQueue.java:692)
    23. java.security.AccessController.doPrivileged(Native Method)
    24. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    25. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
    26. java.awt.EventQueue$4.run(EventQueue.java:708)
    27. java.awt.EventQueue$4.run(EventQueue.java:706)
    28. java.security.AccessController.doPrivileged(Native Method)
    29. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    30. java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
    31. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
    32. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
    33. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
    34. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
    35. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
    36. java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
    36 frames