java.lang.AssertionError: Not Graphics2D
   at org.netbeans.modules.editor.lib2.view.DocumentViewOp.checkFontRenderContext(DocumentViewOp.java:558)
   at org.netbeans.modules.editor.lib2.view.DocumentViewOp.checkViewsInited(DocumentViewOp.java:521)
   at org.netbeans.modules.editor.lib2.view.DocumentView.modelToViewNeedsLock(DocumentView.java:728)
   at org.netbeans.modules.editor.lib2.view.DocumentView.modelToViewChecked(DocumentView.java:716)
   at org.netbeans.modules.editor.lib2.view.EditorView.modelToView(EditorView.java:249)
   at javax.swing.plaf.basic.BasicTextUI$RootView.modelToView(BasicTextUI.java:1497)
   at javax.swing.plaf.basic.BasicTextUI.modelToView(BasicTextUI.java:1035)
   at javax.swing.text.DefaultCaret.setVisible(DefaultCaret.java:950)
   at javax.swing.text.DefaultCaret.focusLost(DefaultCaret.java:345)
   at java.awt.AWTEventMulticaster.focusLost(AWTEventMulticaster.java:213)
   at java.awt.Component.processFocusEvent(Component.java:6182)
   at java.awt.Component.processEvent(Component.java:6046)
   at java.awt.Container.processEvent(Container.java:2039)
   at java.awt.Component.dispatchEventImpl(Component.java:4653)
   at java.awt.Container.dispatchEventImpl(Container.java:2097)
   at java.awt.Component.dispatchEvent(Component.java:4481)
   at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1836)
   at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:910)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:568)
   at java.awt.Component.dispatchEventImpl(Component.java:4525)
   at java.awt.Container.dispatchEventImpl(Container.java:2097)
   at java.awt.Component.dispatchEvent(Component.java:4481)
   at sun.awt.X11.XWindow$1.run(XWindow.java:380)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646)
   at java.awt.EventQueue.access$000(EventQueue.java:84)
   at java.awt.EventQueue$1.run(EventQueue.java:607)
   at java.awt.EventQueue$1.run(EventQueue.java:605)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:616)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)