java.lang.NullPointerException
   at org.netbeans.modules.j2ee.persistence.util.SourceLevelChecker.getSourceLevel(SourceLevelChecker.java:82)
   at org.netbeans.modules.j2ee.persistence.util.SourceLevelChecker.isSourceLevel14orLower(SourceLevelChecker.java:69)
   at org.netbeans.jpa.modeler.reveng.database.DatabaseTablesSelectorPanel$WizardPanel.isValid(DatabaseTablesSelectorPanel.java:1106)
   at org.openide.WizardDescriptor.updateStateOpen(WizardDescriptor.java:874)
   at org.openide.WizardDescriptor.updateState(WizardDescriptor.java:822)
   at org.openide.loaders.TemplateWizard.updateState(TemplateWizard.java:761)
   at org.netbeans.modules.project.ui.NewFileWizard.updateState(NewFileWizard.java:135)
   at org.openide.WizardDescriptor._updateState(WizardDescriptor.java:800)
   at org.openide.WizardDescriptor.access$200(WizardDescriptor.java:92)
   at org.openide.WizardDescriptor$Listener.stateChanged(WizardDescriptor.java:2180)
   at org.openide.util.WeakListenerImpl$Change.stateChanged(WeakListenerImpl.java:356)
   at org.openide.loaders.TemplateWizardIterImpl.run(TemplateWizardIterImpl.java:275)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.doEvent(NbMutexEventProvider.java:118)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event.writeAccess(NbMutexEventProvider.java:83)
   at org.netbeans.modules.openide.util.LazyMutexImplementation.writeAccess(LazyMutexImplementation.java:79)
   at org.openide.util.Mutex.writeAccess(Mutex.java:310)
   at org.openide.loaders.TemplateWizardIterImpl.fireStateChanged(TemplateWizardIterImpl.java:261)
   at org.openide.loaders.TemplateWizardIterImpl.setIterator(TemplateWizardIterImpl.java:120)
   at org.openide.loaders.TemplateWizardIteratorWrapper.setIterator(TemplateWizardIteratorWrapper.java:79)
   at org.openide.loaders.TemplateWizard.setTemplateImpl(TemplateWizard.java:209)
   at org.openide.loaders.TemplateWizard$1.run(TemplateWizard.java:231)
   at org.openide.loaders.TemplateWizard$1.run(TemplateWizard.java:228)
   at org.netbeans.modules.openide.util.NbMutexEventProvider$Event$1AWTWorker.run(NbMutexEventProvider.java:156)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:301)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)