java.lang.OutOfMemoryError: GC overhead limit exceeded
   at java.util.HashSet.<init>(HashSet.java:144)
   at org.openide.filesystems.MultiFileObject.update(MultiFileObject.java:199)
   at org.openide.filesystems.MultiFileObject.<init>(MultiFileObject.java:136)
   at org.openide.filesystems.MultiFileObject.createFile(MultiFileObject.java:560)
   at org.openide.filesystems.AbstractFolder.getChild(AbstractFolder.java:370)
   at org.openide.filesystems.AbstractFolder.getChild(AbstractFolder.java:341)
   at org.openide.filesystems.AbstractFolder.getChildren(AbstractFolder.java:258)
   at org.openide.filesystems.MultiFileObject.list(MultiFileObject.java:479)
   at org.openide.filesystems.AbstractFolder.getNewChildren(AbstractFolder.java:905)
   at org.openide.filesystems.AbstractFolder.refreshFolder(AbstractFolder.java:766)
   at org.openide.filesystems.AbstractFolder.refresh(AbstractFolder.java:947)
   at org.openide.filesystems.AbstractFolder.refresh(AbstractFolder.java:729)
   at org.openide.filesystems.MultiFileObject.refresh(MultiFileObject.java:546)
   at org.openide.filesystems.AbstractFolder.refresh(AbstractFolder.java:499)
   at org.openide.filesystems.MultiFileObject.refresh(MultiFileObject.java:1456)
   at org.openide.filesystems.MultiFileSystem.refresh(MultiFileSystem.java:181)
   at org.netbeans.core.ui.warmup.MenuWarmUpTask$NbWindowsAdapter.run(MenuWarmUpTask.java:321)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)