[IAN] Duplicate of 1820 - When I create a form I have got an exception .

Nodes cannot be opened.

java.lang.NullPointerException
        at com.netbeans.developer.modules.loaders.form.TuborgPersistenceManager.createOldForm(TuborgPersistenceManager.java:254)

        at com.netbeans.developer.modules.loaders.form.TuborgPersistenceManager.saveForm(TuborgPersistenceManager.java:178)
        at com.netbeans.developer.modules.loaders.form.FormEditorSupport.saveDocument(FormEditorSupport.java:176)
        at com.netbeans.ide.text.EditorSupport$SavingManager.save(EditorSupport.java:1058)
        at com.netbeans.developer.modules.loaders.java.JavaDataObject.updateSource(Compiled Code)
        at com.netbeans.developer.modules.loaders.java.JavaDataObject$2.taskFinished(JavaDataObject.java:143)
        at com.netbeans.ide.util.Task.notifyFinished(Compiled Code)
        at com.netbeans.ide.util.Task.run(Compiled Code)
        at com.netbeans.ide.util.RequestProcessor$ProcessorThread.run(Compiled Code)

Thread dump.
Full thread dump Classic VM (JDK-1.2.1-A, native threads):
    "Thread-7" (TID:0x25a2dd8, sys_thread_t:0xc367e0, state:CW, native ID:0xdb) prio=5
    "Compilation" (TID:0x262a340, sys_thread_t:0xb9f9a0, state:CW, native ID:0xce) prio=2
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Compiled Code)
        at com.netbeans.developer.impl.compiler.CompilationEngineImpl$CompilerThread.nextJobAndTask(Compiled Code)
        at com.netbeans.developer.impl.compiler.CompilationEngineImpl$CompilerThread.run(Compiled Code)
    "ThreadedServer" (TID:0x264af50, sys_thread_t:0xb70270, state:R, native ID:0xd2) prio=5
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:406)
        at java.net.ServerSocket.implAccept(ServerSocket.java:241)
        at java.net.ServerSocket.accept(ServerSocket.java:224)
        at com.mortbay.Util.ThreadedServer.ru