javax.swing.text.BadLocationException: Invalid offset=373 not within <0, 372>
   at org.netbeans.modules.editor.lib2.DocUtils.checkOffsetValid(DocUtils.java:239)
   at org.netbeans.modules.editor.lib2.DocUtils.checkOffsetValid(DocUtils.java:234)
   at org.netbeans.modules.editor.lib2.DocUtils.getRowStart(DocUtils.java:70)
   at org.netbeans.modules.editor.lib2.highlighting.CaretBasedBlockHighlighting$CaretRowHighlighting.getCurrentBlockPositions(CaretBasedBlockHighlighting.java:303)
   at org.netbeans.modules.editor.lib2.highlighting.CaretBasedBlockHighlighting.updateLineInfo(CaretBasedBlockHighlighting.java:216)
   at org.netbeans.modules.editor.lib2.highlighting.CaretBasedBlockHighlighting.stateChanged(CaretBasedBlockHighlighting.java:204)
   at org.openide.util.WeakListenerImpl$Change.stateChanged(WeakListenerImpl.java:356)
   at org.netbeans.api.editor.caret.EditorCaret$4.run(EditorCaret.java:1252)
   at org.netbeans.modules.editor.lib2.view.ViewUtils.runInEDT(ViewUtils.java:436)
   at org.netbeans.api.editor.caret.EditorCaret.fireStateChanged(EditorCaret.java:1261)
   at org.netbeans.api.editor.caret.EditorCaret.runTransaction(EditorCaret.java:1167)
   at org.netbeans.api.editor.caret.EditorCaret.moveDot(EditorCaret.java:526)
   at org.netbeans.api.editor.caret.EditorCaret.selectEnsureMinSelection(EditorCaret.java:1892)
   at org.netbeans.api.editor.caret.EditorCaret.access$3700(EditorCaret.java:158)
   at org.netbeans.api.editor.caret.EditorCaret$ListenerImpl.mouseDragged(EditorCaret.java:2443)
   at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:320)
   at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:319)
   at java.awt.Component.processMouseMotionEvent(Component.java:6583)
   at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:3342)
   at java.awt.Component.processEvent(Component.java:6304)
   at java.awt.Container.processEvent(Container.java:2236)
   at java.awt.Component.dispatchEventImpl(Component.java:4891)
   at java.awt.Container.dispatchEventImpl(Container.java:2294)
   at java.awt.Component.dispatchEvent(Component.java:4713)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4888)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4542)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4466)
   at java.awt.Container.dispatchEventImpl(Container.java:2280)
   at java.awt.Window.dispatchEventImpl(Window.java:2750)
   at java.awt.Component.dispatchEvent(Component.java:4713)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
   at java.awt.EventQueue$4.run(EventQueue.java:731)
   at java.awt.EventQueue$4.run(EventQueue.java:729)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
   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)