One example:
"AWT-EventQueue-1" prio=1 tid=0x087c0b90 nid=0x23fb runnable [0x9900c000..0x9900dec0]
       at org.netbeans.lib.lexer.LexerUtilsConstants.token(LexerUtilsConstants.java:229)
       at org.netbeans.api.lexer.TokenSequence.move(TokenSequence.java:591)
       at org.netbeans.modules.languages.features.TokenHighlightsLayer$Highlights.moveNext(TokenHighlightsLayer.java:110)
       at org.netbeans.modules.languages.features.TokenHighlightsLayer$Highlights.moveNext(TokenHighlightsLayer.java:130)
       at org.netbeans.modules.languages.features.TokenHighlightsLayer$Highlights.moveNext(TokenHighlightsLayer.java:102)
       at org.netbeans.spi.editor.highlighting.support.OffsetsBag.addAllHighlightsImpl(OffsetsBag.java:574)
       at org.netbeans.spi.editor.highlighting.support.OffsetsBag.addAllHighlights(OffsetsBag.java:182)
       - locked <0x9f9d03a0> (a org.netbeans.modules.editor.lib2.highlighting.OffsetGapList)
       at org.netbeans.modules.editor.lib2.highlighting.CompoundHighlightsContainer.updateCache(CompoundHighlightsContainer.java:296)
       at org.netbeans.modules.editor.lib2.highlighting.CompoundHighlightsContainer.getHighlights(CompoundHighlightsContainer.java:165)
       - locked <0x9f9d0400> (a java.lang.String)
       at org.netbeans.editor.HighlightingDrawLayer.processOffset(HighlightingDrawLayer.java:565)
       at org.netbeans.editor.HighlightingDrawLayer.isActive(HighlightingDrawLayer.java:292)
       at org.netbeans.editor.DrawEngine.drawArea(DrawEngine.java:863)
       at org.netbeans.editor.DrawEngine.drawInternal(DrawEngine.java:1139)
       - locked <0x9f933c90> (a org.netbeans.modules.languages.dataobject.LanguagesEditorKit$3)
       at org.netbeans.editor.DrawEngine.draw(DrawEngine.java:1045)
       at org.netbeans.editor.DrawEngineLineView.viewToModel(DrawEngineLineView.java:543)
       at org.netbeans.editor.DrawEngineLineView.paint(DrawEngineLineView.java:269)
       at org.netbeans.lib.editor.view.GapBoxViewChildren.paintChildren(GapBoxViewChildren.java:805)
       at org.netbeans.lib.editor.view.GapBoxView.paint(GapBoxView.java:1475)
       at org.netbeans.lib.editor.view.GapDocumentView.paint(GapDocumentView.java:352)
       at org.netbeans.editor.DrawEngineDocView.paint(DrawEngineDocView.java:334)
       at org.netbeans.editor.view.spi.LockView.paint(LockView.java:385)
       at javax.swing.plaf.basic.BasicTextUI$RootView.paint(BasicTextUI.java:1338)
       at javax.swing.plaf.basic.BasicTextUI.paintSafely(BasicTextUI.java:643)
       at javax.swing.plaf.basic.BasicTextUI.paint(BasicTextUI.java:781)
       at javax.swing.plaf.basic.BasicTextUI.update(BasicTextUI.java:760)
       at javax.swing.JComponent.paintComponent(JComponent.java:743)
       at javax.swing.JComponent.paint(JComponent.java:1006)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JViewport.paint(JViewport.java:728)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at org.netbeans.core.windows.view.ui.MultiSplitPane.paint(MultiSplitPane.java:316)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JLayeredPane.paint(JLayeredPane.java:559)
       at javax.swing.JComponent.paintChildren(JComponent.java:843)
       - locked <0x9c88e9f8> (a java.awt.Component$AWTTreeLock)
       at javax.swing.JComponent.paint(JComponent.java:1015)
       at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4972)
       at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4925)
       at javax.swing.JComponent._paintImmediately(JComponent.java:4868)
       at javax.swing.JComponent.paintImmediately(JComponent.java:4675)
       at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:451)
       at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:114)
       at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
       at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
       at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
       at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
       at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
       at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
       at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)