java.lang.OutOfMemoryError: Java heap space
   at java.util.Arrays.copyOf(Arrays.java:3332)
   at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:124)
   at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:596)
   at java.lang.StringBuffer.append(StringBuffer.java:367)
   at java.io.BufferedReader.readLine(BufferedReader.java:370)
   at java.io.BufferedReader.readLine(BufferedReader.java:389)
   at org.openide.util.EditableProperties.load(EditableProperties.java:174)
   at org.netbeans.core.startup.preferences.PropertiesStorage.load(PropertiesStorage.java:215)
   at org.netbeans.core.startup.preferences.NbPreferences.stateChanged(NbPreferences.java:339)
   at org.netbeans.core.startup.preferences.PropertiesStorage$4.fileChanged(PropertiesStorage.java:392)
   at sun.reflect.GeneratedMethodAccessor6.invoke(GeneratedMethodAccessor6.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:487)
   at com.sun.proxy.$Proxy1.fileChanged(.java:0)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:178)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapperMulti.dispatchAllEventsSync(FCLSupport.java:248)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:137)
   at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:112)
   at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1435)
   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:519)
   at org.netbeans.core.startup.preferences.PropertiesStorage.runAtomic(PropertiesStorage.java:353)
   at org.netbeans.core.startup.preferences.NbPreferences$1.run(NbPreferences.java:81)
   at org.openide.util.RequestProcessor$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)