java.lang.OutOfMemoryError: GC overhead limit exceeded
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedURLMapper.toURI(FileBasedURLMapper.java:136)
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedURLMapper.toURI(FileBasedURLMapper.java:130)
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedURLMapper.fileToURL(FileBasedURLMapper.java:112)
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedURLMapper.getURL(FileBasedURLMapper.java:75)
   at org.netbeans.modules.masterfs.MasterURLMapper.getURL(MasterURLMapper.java:69)
   at org.openide.filesystems.URLMapper.findURL(URLMapper.java:140)
   at org.openide.filesystems.FileObject.toURL(FileObject.java:1241)
   at org.netbeans.modules.parsing.ui.indexing.errors.ErrorAnnotator.refresh(ErrorAnnotator.java:222)
   at org.netbeans.modules.parsing.ui.indexing.errors.ErrorAnnotator$RootAddedDeletedListener$1.run(ErrorAnnotator.java:420)
   at org.openide.util.RequestProcessor$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)