java.lang.NullPointerException
   at javax.swing.plaf.basic.BasicTextUI.viewToModel(BasicTextUI.java:1089)
   at javax.swing.plaf.basic.BasicTextUI.viewToModel(BasicTextUI.java:1062)
   at javax.swing.text.JTextComponent.viewToModel(JTextComponent.java:1418)
   at org.netbeans.lib.editor.hyperlink.HyperlinkOperation.keyPressed(HyperlinkOperation.java:385)
   at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232)
   at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232)
   at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232)
   at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:232)
   at java.awt.Component.processKeyEvent(Component.java:6221)
   at javax.swing.JComponent.processKeyEvent(JComponent.java:2801)
   at java.awt.Component.processEvent(Component.java:6040)
   at java.awt.Container.processEvent(Container.java:2041)
   at java.awt.Component.dispatchEventImpl(Component.java:4630)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Component.dispatchEvent(Component.java:4460)
   at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1850)
   at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:712)
   at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990)
   at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:855)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:676)
   at java.awt.Component.dispatchEventImpl(Component.java:4502)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4460)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148)
   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)