DefaultTreeNode exception when being modified from a different thread
Hi,
I have two panels, each one displays a separate tree structure, when I attempt to copy from one tree to another in a different thread I get the following exception.
Exception in thread"AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 84 >= 83
at java.util.Vector.elementAt(Vector.java:427)
at javax.swing.tree.VariableHeightLayoutCache.getNode(VariableHeightLayoutCache.java:976)
at javax.swing.tree.VariableHeightLayoutCache.getPreferredHeight(VariableHeightLayoutCache.java:274)
at javax.swing.plaf.basic.BasicTreeUI.updateCachedPreferredSize(BasicTreeUI.java:1872)
at javax.swing.plaf.basic.BasicTreeUI.getPreferredSize(BasicTreeUI.java:2015)
at javax.swing.plaf.basic.BasicTreeUI.getPreferredSize(BasicTreeUI.java:2003)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1627)
at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:769)
at java.awt.Container.layout(Container.java:1432)
at java.awt.Container.doLayout(Container.java:1421)
at java.awt.Container.validateTree(Container.java:1519)
at java.awt.Container.validate(Container.java:1491)
at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:639)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:127)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Obviously if I revert back the copying to the same thread the problem is avoided, however the program appears to be frozen for the duration of the copying. I also tried changing the way that the information is displayed (ie in a table) and that did not throw exceptions.
I also found this http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4704869 on the Sun Website, however there was no solution.
Therefore, how do I construct a tree that can be modified from a separate thread.
Any assistance greatly appreciated.
