javax.swing.text.BadLocationException: Invalid offset=-2
        at org.netbeans.editor.DocumentContent.checkBounds(DocumentContent.java:284)
        at org.netbeans.editor.DocumentContent.getString(DocumentContent.java:135)
        at javax.swing.text.AbstractDocument.getText(AbstractDocument.java:777)
[catch] at org.netbeans.modules.editor.java.JavadocCompletionProvider$TagsQuery.resolveTagsType(JavadocCompletionProvider.java:167)
        at org.netbeans.modules.editor.java.JavadocCompletionProvider$TagsQuery.query(JavadocCompletionProvider.java:115)
        at org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:181)
        at org.openide.util.Task.run(Task.java:207)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:469)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:870)