Hi,

The following exception occurs on
- try to open another project
- or exit Netbeans

That means, I am not able to close/exit Netbeans
3.3.1 because of this exception.
Only kill helps!

Netbeans 3.3.1
Java 1.4



Thu Apr 11 22:04:32 CEST 2002:
java.lang.NullPointerException: <no message>
java.lang.NullPointerException
        at
org.netbeans.modules.form.FormDesigner.writeExternal(FormDesigner.java:114)
        at
org.openide.windows.TopComponent$Replacer.writeObject(TopComponent.java:737)
        at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at
java.lang.reflect.Method.invoke(Method.java:324)
        at
java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:780)
        at
java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1294)
        at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1245)
        at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)
        at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)
        at
org.openide.loaders.XMLSettingsSupport.storeSerialData(XMLSettingsSupport.java:145)
        at
org.openide.loaders.XMLSettingsSupport.storeToXML10(XMLSettingsSupport.java:82)
        at
org.openide.loaders.InstanceDataObject$SettingsInstance.saveInstance2Buffer(InstanceDataObject.java:1505)
        at
org.openide.loaders.InstanceDataObject$SettingsInstance.access$200(InstanceDataObject.java:1132)
        at
org.openide.loaders.InstanceDataObject.storeSettings(InstanceDataObject.java:329)
        at
org.openide.loaders.InstanceDataObject.access$1700(InstanceDataObject.java:66)
        at
org.openide.loaders.InstanceDataObject$Creator.run(InstanceDataObject.java:1734)
        at
org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:89)
        at
org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:388)
        at
org.openide.loaders.InstanceDataObject$Creator.createInstanceDataObject(InstanceDataObject.java:1749)
        at
org.openide.loaders.InstanceDataObject.create(InstanceDataObject.java:318)
        at
org.netbeans.core.windows.PersistenceManager.forceSaveOfTopComponents(PersistenceManager.java:493)
        at
org.netbeans.core.windows.PersistenceManager.writeXML(PersistenceManager.java:249)
        at
org.netbeans.modules.projects.PSupport.projectSave(PSupport.java:223)
        at
org.netbeans.core.NbProjectOperation.setProject(NbProjectOperation.java:132)
        at
org.netbeans.core.NbProjectOperation.setOpeningProject(NbProjectOperation.java:199)
        at
org.netbeans.core.NbProjectOperation.setOpeningProject(NbProjectOperation.java:208)
        at
org.netbeans.core.NbTopManager.openProject(NbTopManager.java:393)
        at
org.netbeans.modules.projects.ProjectManagerPanel$10.run(ProjectManagerPanel.java:316)
        at
org.openide.util.Task.run(Task.java:152)
[catch] at
org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:622)