javax.swing.text.BadLocationException: Invalid offset=1850 > (docLen+1)=1834
   at org.netbeans.modules.editor.lib2.document.EditorDocumentContent.checkOffsetInContent(EditorDocumentContent.java:280)
   at org.netbeans.modules.editor.lib2.document.EditorDocumentContent.createPosition(EditorDocumentContent.java:192)
   at javax.swing.text.AbstractDocument.createPosition(AbstractDocument.java:816)
   at org.netbeans.api.editor.fold.Fold.<init>(Fold.java:145)
   at org.netbeans.api.editor.fold.FoldHierarchy$ApiPackageAccessorImpl.createFold(FoldHierarchy.java:355)
   at org.netbeans.modules.editor.fold.FoldOperationImpl.createFold(FoldOperationImpl.java:156)
   at org.netbeans.spi.editor.fold.FoldOperation.addToHierarchy(FoldOperation.java:136)
   at org.netbeans.modules.java.editor.fold.JavaElementFoldManager$CommitFolds.run(JavaElementFoldManager.java:402)
   at org.netbeans.editor.BaseDocument.render(BaseDocument.java:1332)
   at org.netbeans.modules.java.editor.fold.JavaElementFoldManager$CommitFolds.run(JavaElementFoldManager.java:357)
   at org.netbeans.modules.java.editor.fold.JavaElementFoldManager$JavaElementFoldTask$1.run(JavaElementFoldManager.java:302)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:702)
   at java.awt.EventQueue.access$400(EventQueue.java:82)
   at java.awt.EventQueue$2.run(EventQueue.java:663)
   at java.awt.EventQueue$2.run(EventQueue.java:661)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:672)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)