java.io.IOException: Invalid lock [org.openide.filesystems.FileLock@955676]. Expected [org.openide.filesystems.FileLock@5f5e4d].
   at org.netbeans.modules.xml.multiview.XmlMultiViewDataObject$DataCache.testLock(XmlMultiViewDataObject.java:590)
   at org.netbeans.modules.xml.multiview.XmlMultiViewDataObject$DataCache.setData(XmlMultiViewDataObject.java:412)
   at org.netbeans.modules.j2ee.sun.ddloaders.DDMultiViewDataObject$ModelSynchronizer.updateDataFromModel(DDMultiViewDataObject.java:268)
   at org.netbeans.modules.xml.multiview.XmlMultiViewDataSynchronizer.updateData(XmlMultiViewDataSynchronizer.java:264)
   at org.netbeans.modules.j2ee.sun.ddloaders.DDMultiViewDataObject$ModelSynchronizer.updateData(DDMultiViewDataObject.java:256)
   at org.netbeans.modules.j2ee.sun.ddloaders.DDMultiViewDataObject.writeModel(DDMultiViewDataObject.java:139)
   at org.netbeans.modules.j2ee.sun.ddloaders.DDMultiViewDataObject.writeModel(DDMultiViewDataObject.java:128)
   at org.netbeans.modules.j2ee.sun.dd.impl.web.SunWebAppProxy.write(SunWebAppProxy.java:783)
   at org.netbeans.modules.glassfish.eecommon.api.config.GlassfishConfiguration$1.run(GlassfishConfiguration.java:639)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1960)