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java.lang.NullPointerException: 	at org.netbeans.modules.j2ee.deployment.config.ConfigDataLoader.checkCache(ConfigDataLoader.java:177)	at org.netbeans.modules.j2ee.deployment.config.ConfigDataLoader.initialize(ConfigDataLoader.java:61)	at org.openide.util.SharedClassObject$DataEntry.tryToInitialize(SharedClassObject.java:831)	at org.openide.util.SharedClassObject$DataEntry.getMap(SharedClassObject.java:763)	at org.openide.util.SharedClassObject.putProperty(SharedClassObject.java:248)	at org.openide.loaders.DataLoader.(DataLoader.java:93)	at org.openide.loaders.MultiFileLoader.(MultiFileLoader.java:46)	at org.netbeans.modules.j2ee.deployment.config.ConfigDataLoader.(ConfigDataLoader.java:48)	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:274)	at org.openide.util.SharedClassObject.createInstancePrivileged(SharedClassObject.java:532)	at org.openide.util.SharedClassObject$SetAccessibleAction.run(SharedClassObject.java:907)	at java.security.AccessController.doPrivileged(Native Method)	at org.openide.util.SharedClassObject.findObject(SharedClassObject.java:449)	at org.netbeans.core.modules.ManifestSection.createInstance(ManifestSection.java:173)	at org.netbeans.core.modules.ManifestSection.getInstance(ManifestSection.java:191)	at org.netbeans.core.LoaderPoolNode.add(LoaderPoolNode.java:144)	at org.netbeans.core.modules.NbInstaller.loadLoaderSection(NbInstaller.java:515)	at org.netbeans.core.modules.NbInstaller.loadSections(NbInstaller.java:411)	at org.netbeans.core.modules.NbInstaller.load(NbInstaller.java:227)	at org.netbeans.core.modules.ModuleManager.enable(ModuleManager.java:861)	at org.netbeans.core.modules.ModuleList.installNew(ModuleList.java:552)	at org.netbeans.core.modules.ModuleList.trigger(ModuleList.java:487)	at org.netbeans.core.modules.ModuleSystem.scanForNewAndRestore(ModuleSystem.java:302)	at org.netbeans.core.NonGui.run(NonGui.java:348)	at org.netbeans.core.Main.run(Main.java:294)	at org.netbeans.core.NbTopManager.getNbTopManager(NbTopManager.java:233)	at org.netbeans.core.NbTopManager.get(NbTopManager.java:188)	at org.netbeans.core.Main.start(Main.java:485)	at org.netbeans.core.TopThreadGroup.run(TopThreadGroup.java:90)	at java.lang.Thread.run(Thread.java:534)