Colin Froggatt created LOG4J2-538:
-------------------------------------

             Summary: occasional ArrayIndexOutOfBoundsException after pressing 
"reconfigure with XML below"
                 Key: LOG4J2-538
                 URL: https://issues.apache.org/jira/browse/LOG4J2-538
             Project: Log4j 2
          Issue Type: Bug
          Components: JMX
    Affects Versions: 2.0-rc1
         Environment: Windows 7, Java 1.6.0_45-b06
            Reporter: Colin Froggatt


While testing the fix for LOG4J2-443, I have encountered a number of 
{{ArrayIndexOutOfBoundsException}}'s after pressing "reconfigure with XML 
below" button.

Exception is: 
{code}
Exception occurred during event dispatching:
java.lang.ArrayIndexOutOfBoundsException: 1
        at 
javax.swing.plaf.basic.BasicTabbedPaneUI.paintTabArea(BasicTabbedPaneUI.java:817)
        at 
javax.swing.plaf.basic.BasicTabbedPaneUI.paint(BasicTabbedPaneUI.java:780)
        at javax.swing.plaf.ComponentUI.update(ComponentUI.java:143)
        at javax.swing.JComponent.paintComponent(JComponent.java:760)
        at javax.swing.JComponent.paint(JComponent.java:1037)
        at javax.swing.JComponent.paintChildren(JComponent.java:870)
        at javax.swing.JComponent.paint(JComponent.java:1046)
        at javax.swing.JComponent.paintChildren(JComponent.java:870)
        at javax.swing.JComponent.paint(JComponent.java:1046)
        at javax.swing.JComponent.paintChildren(JComponent.java:870)
        at javax.swing.JComponent.paint(JComponent.java:1046)
        at javax.swing.JComponent.paintChildren(JComponent.java:870)
        at javax.swing.JComponent.paint(JComponent.java:1046)
        at javax.swing.JComponent.paintToOffscreen(JComponent.java:5132)
        at 
javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1523)
        at 
javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1454)
        at javax.swing.RepaintManager.paint(RepaintManager.java:1257)
        at javax.swing.JComponent._paintImmediately(JComponent.java:5080)
        at javax.swing.JComponent.paintImmediately(JComponent.java:4890)
        at javax.swing.RepaintManager$3.run(RepaintManager.java:814)
        at javax.swing.RepaintManager$3.run(RepaintManager.java:802)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:802)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:745)
        at 
javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:725)
        at javax.swing.RepaintManager.access$1000(RepaintManager.java:46)
        at 
javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1668)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:672)
        at java.awt.EventQueue.access$400(EventQueue.java:81)
        at java.awt.EventQueue$2.run(EventQueue.java:633)
        at java.awt.EventQueue$2.run(EventQueue.java:631)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:642)
        at 
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at 
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at 
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
        at java.awt.Dialog$1.run(Dialog.java:1052)
        at java.awt.Dialog$3.run(Dialog.java:1104)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.awt.Dialog.show(Dialog.java:1102)
        at javax.swing.JOptionPane.showOptionDialog(JOptionPane.java:853)
        at javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:650)
        at javax.swing.JOptionPane.showMessageDialog(JOptionPane.java:621)
        at 
org.apache.logging.log4j.jmx.gui.ClientEditConfigPanel.showConfirmation(ClientEditConfigPanel.java:110)
        at 
org.apache.logging.log4j.jmx.gui.ClientEditConfigPanel.access$300(ClientEditConfigPanel.java:43)
        at 
org.apache.logging.log4j.jmx.gui.ClientEditConfigPanel$2.actionPerformed(ClientEditConfigPanel.java:85)
        at 
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at 
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at 
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at 
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at 
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
        at java.awt.Component.processMouseEvent(Component.java:6297)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3275)
        at java.awt.Component.processEvent(Component.java:6062)
        at java.awt.Container.processEvent(Container.java:2039)
        at java.awt.Component.dispatchEventImpl(Component.java:4660)
        at java.awt.Container.dispatchEventImpl(Container.java:2097)
        at java.awt.Component.dispatchEvent(Component.java:4488)
        at 
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4575)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4236)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4166)
        at java.awt.Container.dispatchEventImpl(Container.java:2083)
        at java.awt.Window.dispatchEventImpl(Window.java:2489)
        at java.awt.Component.dispatchEvent(Component.java:4488)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:674)
        at java.awt.EventQueue.access$400(EventQueue.java:81)
        at java.awt.EventQueue$2.run(EventQueue.java:633)
        at java.awt.EventQueue$2.run(EventQueue.java:631)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
        at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
        at java.awt.EventQueue$3.run(EventQueue.java:647)
        at java.awt.EventQueue$3.run(EventQueue.java:645)
        at java.security.AccessController.doPrivileged(Native Method)
        at 
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:644)
        at 
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at 
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at 
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Exception occurred during event dispatching:
java.lang.ArrayIndexOutOfBoundsException
{code}

This happens  after pressing "reconfigure with XML below".  It opens in a 
dialog titled "JConsole:Output".  After it pops up it is possible to ignore it 
and carry on with all the above steps.





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