java.lang.NullPointerException at org.netbeans.modules.form.FormDataObject.createNodeDelegate(FormDataObject.java:171) at org.openide.loaders.DataObject$1.run(DataObject.java:372) at org.netbeans.modules.openide.util.DefaultMutexImplementation.readAccess(DefaultMutexImplementation.java:236) at org.netbeans.modules.openide.util.DefaultMutexImplementation$1R.run(DefaultMutexImplementation.java:1080) at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1938) at org.netbeans.modules.openide.util.DefaultMutexImplementation.doWrapperAccess(DefaultMutexImplementation.java:1099) at org.netbeans.modules.openide.util.DefaultMutexImplementation.readAccess(DefaultMutexImplementation.java:226) at org.openide.util.Mutex.readAccess(Mutex.java:260) at org.openide.loaders.DataObject.getNodeDelegateImpl(DataObject.java:355) at org.openide.loaders.DataObject.getNodeDelegate(DataObject.java:342) at org.netbeans.modules.project.ui.OpenProjectList.prepareTemplates(OpenProjectList.java:1347) at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:1314) at org.netbeans.modules.project.ui.OpenProjectList.access$1600(OpenProjectList.java:137) at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.loadOnBackground(OpenProjectList.java:516) at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.run(OpenProjectList.java:394) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443) at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)