SEVERE [org.netbeans.core.modules]
java.lang.ClassNotFoundException: org.netbeans.modules.j2ee.websphere6.ddloaders.appext.WSAppExtDataObject
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:231)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:247)
        at org.openide.loaders.DataLoader.getRepresentationClass(DataLoader.java:141)
Caused: java.lang.IllegalStateException: Failed to load org.netbeans.modules.j2ee.websphere6.ddloaders.appext.WSAppExtDataObject from org.netbeans.StandardModule$OneModuleClassLoader@158497c[org.netbeans.modules.j2ee.websphere6]
        at org.openide.loaders.DataLoader.getRepresentationClass(DataLoader.java:143)
        at org.openide.loaders.DataLoader.<init>(DataLoader.java:125)
        at org.openide.loaders.MultiFileLoader.<init>(MultiFileLoader.java:77)
        at org.openide.loaders.UniFileLoader.<init>(UniFileLoader.java:79)
        at org.netbeans.modules.j2ee.websphere6.dd.loaders.appext.WSAppExtDataLoader.<init>(WSAppExtDataLoader.java:35)
Caused: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at org.openide.util.SharedClassObject.createInstancePrivileged(SharedClassObject.java:641)
        at org.openide.util.SharedClassObject$SetAccessibleAction.run(SharedClassObject.java:1001)
        at org.openide.util.SharedClassObject$SetAccessibleAction.run(SharedClassObject.java:993)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.openide.util.SharedClassObject.findObject(SharedClassObject.java:515)
Caused: java.lang.IllegalArgumentException
        at org.openide.util.SharedClassObject.findObject(SharedClassObject.java:518)
        at org.netbeans.core.startup.ManifestSection.createInstance(ManifestSection.java:198)
        at org.netbeans.core.startup.ManifestSection.getInstance(ManifestSection.java:216)
        at org.netbeans.core.LoaderPoolNode.add(LoaderPoolNode.java:204)
        at org.netbeans.core.CoreBridgeImpl.loadLoaderSection(CoreBridgeImpl.java:95)
        at org.netbeans.core.startup.NbInstaller.loadSections(NbInstaller.java:432)
[catch] at org.netbeans.core.startup.NbInstaller.load(NbInstaller.java:271)
        at org.netbeans.ModuleManager.enable(ModuleManager.java:933)
        at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:405)
        at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:341)
        at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:271)
        at org.netbeans.core.startup.Main.getModuleSystem(Main.java:171)
        at org.netbeans.core.startup.Main.start(Main.java:322)
        at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:110)
        at java.lang.Thread.run(Thread.java:619)