Exception in expanding the tree

[Amit M Tank]

Hi,
I got this esception when I was updating the node of the JTree. I am calling the valueForPathChanged(TreePath,Object).

java.lang.ArrayIndexOutOfBoundsException: 3 >= 3
at java.util.Vector.removeElementAt(Vector.java:521)
at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.collapse(Var
iableHeightLayoutCache.java:1583)
at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.collapse(Var
iableHeightLayoutCache.java:1277)
at javax.swing.tree.VariableHeightLayoutCache.setExpandedState(VariableH
eightLayoutCache.java:170)
at javax.swing.plaf.basic.BasicTreeUI$TreeExpansionHandler.treeCollapsed
(BasicTreeUI.java:2327)
at javax.swing.JTree.fireTreeCollapsed(JTree.java:2273)
at javax.swing.JTree.setExpandedState(JTree.java:2989)
at javax.swing.JTree.collapsePath(JTree.java:1773)
at javax.swing.plaf.basic.BasicTreeUI.toggleExpandState(BasicTreeUI.java
:2106)
at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.jav
a:2194)
at javax.swing.plaf.basic.BasicTreeUI$MouseHandler.handleSelection(Basic
TreeUI.java:2840)
at javax.swing.plaf.basic.BasicTreeUI$MouseHandler.mousePressed(BasicTre
eUI.java:2801)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:21
8)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:21
7)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:21
7)
at java.awt.Component.processMouseEvent(Component.java:5131)
at java.awt.Component.processEvent(Component.java:4931)
at java.awt.Container.processEvent(Container.java:1566)
at java.awt.Component.dispatchEventImpl(Component.java:3639)
at java.awt.Container.dispatchEventImpl(Container.java:1623)
at java.awt.Component.dispatchEvent(Component.java:3480)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450
)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3162)

at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
at java.awt.Container.dispatchEventImpl(Container.java:1609)
at java.awt.Window.dispatchEventImpl(Window.java:1590)
at java.awt.Component.dispatchEvent(Component.java:3480)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:197)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)

[Nathan Pruett]

Are you using any custom models, etc. for the tree? The stack trace doesn't tell much about what the actual problem might be... it looks like it is trying to expand node "3" and only nodes 0-2 exist. Not sure where the extra value is coming from though...