java.lang.OutOfMemoryError: GC overhead limit exceeded
   at org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.registerInstanceOfFileNaming(NamingFactory.java:318)
   at org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:132)
   at org.netbeans.modules.masterfs.filebasedfs.naming.NamingFactory.fromFile(NamingFactory.java:109)
   at org.netbeans.modules.masterfs.filebasedfs.children.ChildrenSupport$2IOJob.run(ChildrenSupport.java:274)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.computeChildren(FolderObj.java:171)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.getChildren(FolderObj.java:157)
   at org.netbeans.modules.project.ui.convertor.ProjectConvertorAcceptor.isProject(ProjectConvertorAcceptor.java:74)
   at org.netbeans.modules.project.ui.convertor.ProjectConvertorFactory$1.run(ProjectConvertorFactory.java:153)
   at org.netbeans.modules.project.ui.convertor.ProjectConvertorFactory$1.run(ProjectConvertorFactory.java:148)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.readAccess(DefaultMutexImplementation.java:252)
   at org.openide.util.Mutex.readAccess(Mutex.java:218)
   at org.netbeans.modules.project.ui.convertor.ProjectConvertorFactory.isProjectImpl(ProjectConvertorFactory.java:148)
   at org.netbeans.modules.project.ui.convertor.ProjectConvertorFactory.loadProject(ProjectConvertorFactory.java:112)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.createProject(NbProjectManager.java:401)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.access$300(NbProjectManager.java:94)
   at org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:314)
   at org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:243)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.readAccess(DefaultMutexImplementation.java:252)
   at org.openide.util.Mutex.readAccess(Mutex.java:250)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.findProject(NbProjectManager.java:243)
   at org.netbeans.api.project.ProjectManager.findProject(ProjectManager.java:164)
   at org.netbeans.modules.projectapi.SimpleFileOwnerQueryImplementation.getOwner(SimpleFileOwnerQueryImplementation.java:161)
   at org.netbeans.api.project.FileOwnerQuery.getOwner(FileOwnerQuery.java:114)
   at org.netbeans.modules.projectapi.ProjectFileEncodingQueryImplementation.getEncoding(ProjectFileEncodingQueryImplementation.java:72)
   at org.netbeans.api.queries.FileEncodingQuery.getEncoding(FileEncodingQuery.java:96)
   at org.openide.text.DataEditorSupport.openDocument(DataEditorSupport.java:584)
   at org.netbeans.modules.versioning.ui.diff.DiffSidebar.getText(DiffSidebar.java:1087)
   at org.netbeans.modules.versioning.ui.diff.DiffSidebar.getText(DiffSidebar.java:1001)
   at org.netbeans.modules.versioning.ui.diff.DiffSidebar.access$1600(DiffSidebar.java:114)
   at org.netbeans.modules.versioning.ui.diff.DiffSidebar$RefreshDiffTask.fetchOriginalContent(DiffSidebar.java:962)
   at org.netbeans.modules.versioning.ui.diff.DiffSidebar$RefreshDiffTask.computeDiff(DiffSidebar.java:931)
   at org.netbeans.modules.versioning.ui.diff.DiffSidebar$RefreshDiffTask.run(DiffSidebar.java:916)