java.lang.ArrayIndexOutOfBoundsException: 0
	at javax.swing.text.BoxView.getOffset(BoxView.java:1079)
	at javax.swing.text.BoxView.childAllocation(BoxView.java:669)
	at javax.swing.text.CompositeView.getChildAllocation(CompositeView.java:215)
	at javax.swing.text.BoxView.getChildAllocation(BoxView.java:427)
	at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.calculateViewPosition(BasicTextUI.java:1856)
	at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.layoutContainer(BasicTextUI.java:1832)
	at java.awt.Container.layout(Container.java:1020)
	at java.awt.Container.doLayout(Container.java:1010)
	at java.awt.Container.validateTree(Container.java:1092)
	at java.awt.Container.validateTree(Container.java:1099)
	at java.awt.Container.validateTree(Container.java:1099)
	at java.awt.Container.validateTree(Container.java:1099)
	at java.awt.Container.validateTree(Container.java:1099)
	at java.awt.Container.validate(Container.java:1067)
	at javax.swing.JLayeredPane.addImpl(JLayeredPane.java:205)
	at java.awt.Container.add(Container.java:547)
	at org.netbeans.editor.PopupManager.installToRootPane(PopupManager.java:203)
	at org.netbeans.editor.PopupManager.install(PopupManager.java:141)
	at org.netbeans.editor.PopupManager.install(PopupManager.java:184)
	at org.netbeans.editor.PopupManager.install(PopupManager.java:190)
	at org.netbeans.editor.PopupManager.install(PopupManager.java:102)
	at org.netbeans.editor.ext.JDCPopupPanel.setVisible(JDCPopupPanel.java:284)
	at org.netbeans.editor.ext.JDCPopupPanel.setCompletionVisible(JDCPopupPanel.java:259)
	at org.netbeans.editor.ext.Completion.performResults(Completion.java:617)
	at org.netbeans.editor.ext.Completion.access$1400(Completion.java:47)
[catch] at org.netbeans.editor.ext.Completion$4.run(Completion.java:540)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)