[exec] "AWT-EventQueue-1" prio=1 tid=0x08792398 nid=0x704d runnable [0x82df2000..0x82df30b0]
     [exec]     at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1165)
     [exec]     at org.openide.text.NbDocument$DocumentRenderer.renderToInt(NbDocument.java:621)
     [exec]     at org.openide.text.NbDocument.findLineNumber(NbDocument.java:114)
     [exec]     at org.openide.text.PositionRef$Manager$DocumentRenderer.run(PositionRef.java:962)
     [exec]     at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1162)
     [exec]     at org.openide.text.PositionRef$Manager$DocumentRenderer.render(PositionRef.java:864)
     [exec]     at org.openide.text.PositionRef$Manager$DocumentRenderer.renderToInt(PositionRef.java:901)
     [exec]     at org.openide.text.PositionRef$Manager$PositionKind.getLine(PositionRef.java:489)
     [exec]     at org.openide.text.PositionRef.getLine(PositionRef.java:145)
     [exec]     at org.openide.text.DocumentLine.getLineNumber(DocumentLine.java:102)
     [exec]     at org.openide.text.DocumentLine.equals(DocumentLine.java:228)
     [exec]     at java.util.WeakHashMap.eq(WeakHashMap.java:254)
     [exec]     at java.util.WeakHashMap.get(WeakHashMap.java:345)
     [exec]     at org.openide.text.Line$Set.registerLine(Line.java:412)
     [exec]     - locked <0x8c642a20> (a java.util.WeakHashMap)
     [exec]     at org.openide.text.DocumentLine$Set.access$101(DocumentLine.java:883)
     [exec]     at org.openide.text.DocumentLine$Set$1DocumentRenderer.run(DocumentLine.java:1023)
     [exec]     at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1162)
     [exec]     at org.openide.text.DocumentLine$Set.safelyRegisterLine(DocumentLine.java:1028)
     [exec]     at org.openide.text.DocumentLine$Set.getCurrent(DocumentLine.java:1000)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator.createNavigatorNode(LanguagesNavigator.java:283)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator.access$700(LanguagesNavigator.java:88)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$Model.getNavigatorNodes(LanguagesNavigator.java:506)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$Model.getNavigatorNodes(LanguagesNavigator.java:517)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$Model.getNavigatorNodes(LanguagesNavigator.java:517)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$Model.getNavigatorNodes(LanguagesNavigator.java:517)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$Model.getNavigatorNodes(LanguagesNavigator.java:471)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$Model.isLeaf(LanguagesNavigator.java:436)
     [exec]     at javax.swing.JTree.setModel(JTree.java:704)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$2._run(LanguagesNavigator.java:237)
     [exec]     at org.netbeans.modules.languages.features.LanguagesNavigator$2.run(LanguagesNavigator.java:182)
     [exec]     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
     [exec]     at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
     [exec]     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
     [exec]     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
     [exec]     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
     [exec]     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
     [exec]     at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
     [exec]