java.lang.IllegalStateException: Caller of TokenSequence forgot to call moveNext(): tokenIndex=0
	at org.netbeans.api.lexer.TokenSequence.checkTokenNotNull(TokenSequence.java:708)
	at org.netbeans.api.lexer.TokenSequence.offset(TokenSequence.java:232)
	at org.netbeans.modules.languages.features.CompletionProviderImpl$CompletionTaskImpl.compute(CompletionProviderImpl.java:214)
	at org.netbeans.modules.languages.features.CompletionProviderImpl$CompletionTaskImpl.query(CompletionProviderImpl.java:167)
	at org.netbeans.modules.editor.completion.CompletionImpl.queryResultSets(CompletionImpl.java:1431)
	at org.netbeans.modules.editor.completion.CompletionImpl.completionQuery(CompletionImpl.java:570)
	at org.netbeans.modules.editor.completion.CompletionImpl.showCompletion(CompletionImpl.java:726)
	at org.netbeans.modules.editor.completion.CompletionImpl.access$2200(CompletionImpl.java:76)
	at org.netbeans.modules.editor.completion.CompletionImpl$CompletionShowAction.actionPerformed(CompletionImpl.java:1351)
	at org.netbeans.modules.editor.completion.CompletionImpl.dispatchKeyEvent(CompletionImpl.java:496)
	at org.netbeans.modules.editor.completion.CompletionImpl.keyPressed(CompletionImpl.java:325)
	at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:233)
	at java.awt.Component.processKeyEvent(Component.java:5996)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2799)
	at java.awt.Component.processEvent(Component.java:5815)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4410)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4240)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1848)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:697)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:962)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:834)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:661)
	at java.awt.Component.dispatchEventImpl(Component.java:4282)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Window.dispatchEventImpl(Window.java:2429)
	at java.awt.Component.dispatchEvent(Component.java:4240)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)