java.lang.NullPointerException
   at org.netbeans.api.java.source.ui.ElementJavadoc.getText(ElementJavadoc.java:157)
   at org.netbeans.modules.editor.java.JavaCompletionDoc.getText(JavaCompletionDoc.java:78)
   at org.netbeans.modules.editor.completion.DocumentationScrollPane.setDocumentation(DocumentationScrollPane.java:228)
   at org.netbeans.modules.editor.completion.DocumentationScrollPane.setData(DocumentationScrollPane.java:148)
   at org.netbeans.modules.editor.completion.DocumentationScrollPane$HyperlinkAction$1$1.run(DocumentationScrollPane.java:457)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
   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)