java.lang.OutOfMemoryError: GC overhead limit exceeded
   at java.util.Arrays.copyOfRange(Arrays.java:2694)
   at java.lang.String.<init>(String.java:203)
   at java.lang.StringBuilder.toString(StringBuilder.java:405)
   at org.openide.filesystems.FileObject.getPath(FileObject.java:223)
   at org.openide.filesystems.MultiFileObject.update(MultiFileObject.java:203)
   at org.openide.filesystems.MultiFileObject.refresh(MultiFileObject.java:541)
   at org.openide.filesystems.AbstractFolder.check(AbstractFolder.java:664)
   at org.openide.filesystems.AbstractFolder.getFileObjectImpl(AbstractFolder.java:479)
   at org.openide.filesystems.AbstractFolder.getFileObject(AbstractFolder.java:475)
   at org.openide.filesystems.FileObject.getFileObject(FileObject.java:974)
   at org.netbeans.core.startup.preferences.PropertiesStorage.toPropertiesFile(PropertiesStorage.java:307)
   at org.netbeans.core.startup.preferences.PropertiesStorage$4.fileChanged(PropertiesStorage.java:382)
   at sun.reflect.GeneratedMethodAccessor6.invoke(GeneratedMethodAccessor6.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:458)
   at com.sun.proxy.$Proxy1.fileChanged(.java:0)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:160)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:128)
   at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:105)
   at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1356)
   at org.openide.filesystems.EventControl.invokeDispatchers(EventControl.java:213)
   at org.openide.filesystems.EventControl.exitAtomicAction(EventControl.java:188)
   at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:129)
   at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:609)
   at org.netbeans.core.startup.preferences.PropertiesStorage.runAtomic(PropertiesStorage.java:347)
   at org.netbeans.core.startup.preferences.NbPreferences$1.run(NbPreferences.java:81)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)