java.lang.NullPointerException
   at javax.swing.text.GlyphView$GlyphPainter.getNextVisualPositionFrom(GlyphView.java:1318)
   at javax.swing.text.GlyphView.getNextVisualPositionFrom(GlyphView.java:907)
   at javax.swing.text.Utilities.getNextVisualPositionFrom(Utilities.java:1008)
   at javax.swing.text.CompositeView.getNextEastWestVisualPositionFrom(CompositeView.java:757)
   at javax.swing.text.CompositeView.getNextVisualPositionFrom(CompositeView.java:482)
   at javax.swing.text.Utilities.getNextVisualPositionFrom(Utilities.java:1008)
   at javax.swing.text.CompositeView.getNextEastWestVisualPositionFrom(CompositeView.java:757)
   at javax.swing.text.CompositeView.getNextVisualPositionFrom(CompositeView.java:482)
   at javax.swing.text.CompositeView.viewToModel(CompositeView.java:410)
   at javax.swing.text.BoxView.viewToModel(BoxView.java:503)
   at javax.swing.text.CompositeView.viewToModel(CompositeView.java:425)
   at javax.swing.text.BoxView.viewToModel(BoxView.java:503)
   at javax.swing.text.CompositeView.viewToModel(CompositeView.java:425)
   at javax.swing.text.BoxView.viewToModel(BoxView.java:503)
   at javax.swing.plaf.basic.BasicTextUI$RootView.viewToModel(BasicTextUI.java:1552)
   at javax.swing.plaf.basic.BasicTextUI.viewToModel(BasicTextUI.java:1101)
   at javax.swing.text.html.HTMLEditorKit$LinkController.mouseMoved(HTMLEditorKit.java:695)
   at java.awt.AWTEventMulticaster.mouseMoved(AWTEventMulticaster.java:330)
   at java.awt.Component.processMouseMotionEvent(Component.java:6570)
   at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:3339)
   at java.awt.Component.processEvent(Component.java:6294)
   at java.awt.Container.processEvent(Container.java:2234)
   at java.awt.Component.dispatchEventImpl(Component.java:4881)
   at java.awt.Container.dispatchEventImpl(Container.java:2292)
   at java.awt.Component.dispatchEvent(Component.java:4703)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4898)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4546)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4462)
   at java.awt.Container.dispatchEventImpl(Container.java:2278)
   at java.awt.Window.dispatchEventImpl(Window.java:2739)
   at java.awt.Component.dispatchEvent(Component.java:4703)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:697)
   at java.awt.EventQueue$3.run(EventQueue.java:691)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
   at java.awt.EventQueue$4.run(EventQueue.java:719)
   at java.awt.EventQueue$4.run(EventQueue.java:717)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:716)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   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)