java.lang.NullPointerException

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    java.lang.NullPointerException
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    java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at javax.swing.AbstractButton.isSelected()
    2. Java RT
      ButtonGroup.add
      1. javax.swing.AbstractButton.isSelected(AbstractButton.java:308)
      2. javax.swing.ButtonGroup.add(ButtonGroup.java:76)
      2 frames
    3. lightofproject.gui
      DiagnoseSystemV_1$2.run
      1. lightofproject.gui.DiagnoseSystemV_1.initComponents(DiagnoseSystemV_1.java:109)
      2. lightofproject.gui.DiagnoseSystemV_1.<init>(DiagnoseSystemV_1.java:31)
      3. lightofproject.gui.DiagnoseSystemV_1$2.run(DiagnoseSystemV_1.java:695)
      3 frames
    4. Java RT
      EventDispatchThread.run
      1. java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
      2. java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
      3. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
      4. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
      5. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
      6. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
      7. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
      8. java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
      8 frames