#12 Exception in thread "AWT-EventQueue-0"

it is a race condition caused by iterating through the lines in the pseudo code tree backwards. the vector somehow gets smaller and in the first iteration the index is out of bound.

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 36 >= 34
	at java.util.Vector.elementAt(Vector.java:474)
	at javax.swing.tree.VariableHeightLayoutCache.getNode(VariableHeightLayoutCache.java:994)
	at javax.swing.tree.VariableHeightLayoutCache.getMaxNodeWidth(VariableHeightLayoutCache.java:1007)
	at javax.swing.tree.VariableHeightLayoutCache.getPreferredWidth(VariableHeightLayoutCache.java:309)
	at javax.swing.plaf.basic.BasicTreeUI.updateCachedPreferredSize(BasicTreeUI.java:1900)
	at javax.swing.plaf.basic.BasicTreeUI.getPreferredSize(BasicTreeUI.java:2003)
	at javax.swing.plaf.basic.BasicTreeUI.getPreferredSize(BasicTreeUI.java:1991)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1662)
	at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:791)
	at java.awt.Container.layout(Container.java:1510)
	at java.awt.Container.doLayout(Container.java:1499)
	at java.awt.Container.validateTree(Container.java:1695)
	at java.awt.Container.validate(Container.java:1630)
	at javax.swing.RepaintManager$3.run(RepaintManager.java:711)
	at javax.swing.RepaintManager$3.run(RepaintManager.java:709)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:708)
	at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1731)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

I recommend reading https://stackoverflow.com/questions/18311972/swing-thread-safe-programming

Im BetterStructure Branch wurde eine Änderung durchgeführt, welche das Problem beheben sollte. Es muss aber noch ausführlich getestet werden. Siehe 3847267d08 für mehr Details.