Thu Oct 11 11:11:19 CEST 2001: org.openide.filesystems.FileStateInvalidException: File properties.wstcref_hidden cannot be found in folder Windows/WindowManager/Editing/properties.
org.openide.filesystems.FileStateInvalidException: File properties.wstcref_hidden cannot be found in folder Windows/WindowManager/Editing/properties.
        at org.openide.filesystems.MultiFileObject.createData(MultiFileObject.java:880)
        at org.openide.filesystems.FileUtil.createData(FileUtil.java:209)
        at org.openide.filesystems.MultiFileSystem.maskFile(MultiFileSystem.java:486)
        at org.openide.filesystems.MultiFileObject.delete(MultiFileObject.java:1046)
        at org.netbeans.core.windows.layers.ModeData$CookiesImpl.deleteTcRef(ModeData.java:770)
        at org.netbeans.core.windows.layers.ModeData$CookiesImpl.removeUnusedComponents(ModeData.java:758)
        at org.netbeans.core.windows.layers.ModeData$CookiesImpl.save(ModeData.java:677)
        at org.netbeans.core.windows.layers.WorkspaceData$InstanceCookieImpl.save(WorkspaceData.java:555)
        at org.netbeans.core.windows.layers.WindowManagerData$InstanceCookieImpl.save(WindowManagerData.java:520)
        at org.netbeans.core.windows.PersistenceManager.writeXML(PersistenceManager.java:310)
[catch] at org.netbeans.core.windows.WindowManagerImpl$ProjectSwitchListener.propertyChange(WindowManagerImpl.java:1135)
        at org.netbeans.core.projects.SessionManager.firePropertyChange(SessionManager.java:209)
        at org.netbeans.core.projects.SessionManager.setProjectLayer(SessionManager.java:95)
        at org.netbeans.modules.projects.PSupport.projectOpen(PSupport.java:203)
        at org.netbeans.core.NbProjectOperation.setProject(NbProjectOperation.java:115)
        at org.netbeans.core.NbProjectOperation.setOpeningProject(NbProjectOperation.java:171)
        at org.netbeans.core.NbTopManager.openProject(NbTopManager.java:409)
        at org.netbeans.modules.projects.NewProjectAction$1.run(NewProjectAction.java:86)
        at org.openide.util.Task.run(Task.java:152)
        at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:611)