java.lang.NullPointerException
	at org.netbeans.editor.PopupManager.install(PopupManager.java:155)
	at org.netbeans.editor.ext.ToolTipSupport.ensureVisibility(ToolTipSupport.java:547)
	at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:213)
	at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:200)
	at org.netbeans.editor.ext.ToolTipSupport.setToolTip(ToolTipSupport.java:195)
	at org.netbeans.editor.ext.ToolTipSupport.setToolTipText(ToolTipSupport.java:474)
[catch] at org.netbeans.modules.editor.NbToolTip$1.run(NbToolTip.java:285)
	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)