Fri Jan 12 16:39:43 GMT+01:00 2001java.lang.NullPointerException: null
java.lang.NullPointerException
        at org.netbeans.core.windows.frames.DefaultContainerImpl$SerializedData.writeObject(DefaultContainerImpl.java:776)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1878)
        at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at java.io.ObjectOutputStream$PutFieldImpl.write(ObjectOutputStream.java:2191)
        at org.netbeans.core.windows.frames.MultiTabbedContainerImpl$SerializationReplacer.writeObject(MultiTabbedContainerImpl.java:545)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1878)
        at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at java.io.ObjectOutputStream$PutFieldImpl.write(ObjectOutputStream.java:2191)
        at org.netbeans.core.windows.ModeImpl$SerializationReplacer.writeObject(ModeImpl.java:1171)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1878)
        at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at java.util.HashSet.writeObject(HashSet.java:223)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1878)
        at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at java.io.ObjectOutputStream$PutFieldImpl.write(ObjectOutputStream.java:2191)
        at org.netbeans.core.windows.WorkspaceImpl$SerializationReplacer.writeObject(WorkspaceImpl.java:893)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1878)
        at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at java.io.ObjectOutputStream.outputArray(ObjectOutputStream.java:1098)
        at java.io.ObjectOutputStream.checkSubstitutableSpecialClasses(ObjectOutputStream.java:456)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
        at java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:1841)
        at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:480)
        at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1214)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at java.io.ObjectOutputStream$PutFieldImpl.write(ObjectOutputStream.java:2191)
        at org.netbeans.core.windows.WindowManagerImpl$SerializationReplacer.writeObject(WindowManagerImpl.java:864)
        at java.lang.reflect.Method.invoke(Native Method)
        at java.io.ObjectOutputStream.invokeObjectWriter(ObjectOutputStream.java:1878)
        at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1210)
        at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at org.openide.util.io.NbMarshalledObject.<init>(NbMarshalledObject.java:60)
        at org.netbeans.modules.projects.content.XMLProjectContent.storeWindowManager(XMLProjectContent.java:172)
        at org.openidex.projects.ProjectSupport.projectSave(ProjectSupport.java:135)
        at org.netbeans.modules.projects.PSupport.projectSave(PSupport.java:264)
        at org.netbeans.core.NbProjectOperation.storeLastProject(NbProjectOperation.java:62)
        at org.netbeans.core.NbTopManager.exit(NbTopManager.java:707)
        at org.netbeans.core.NbTopManager.exit(NbTopManager.java:694)
        at org.netbeans.core.actions.SystemExit.performAction(SystemExit.java:45)
        at org.netbeans.core.windows.MainWindow$3.windowClosing(MainWindow.java:143)
        at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:291)
        at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:290)
        at java.awt.Window.processWindowEvent(Window.java:798)
        at javax.swing.JFrame.processWindowEvent(JFrame.java:241)
        at java.awt.Window.processEvent(Window.java:774)
        at java.awt.Component.dispatchEventImpl(Component.java:2595)
        at java.awt.Container.dispatchEventImpl(Container.java:1213)
        at java.awt.Window.dispatchEventImpl(Window.java:912)
        at java.awt.Component.dispatchEvent(Component.java:2499)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:333)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:103)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:84)