java.lang.IllegalArgumentException: Called DataObject.find on null
   at org.openide.loaders.DataObject.find(DataObject.java:513)
   at org.netbeans.modules.hibernate.wizards.HibernateCodeGenWizardDescriptor.isValid(HibernateCodeGenWizardDescriptor.java:125)
   at org.openide.WizardDescriptor.updateStateOpen(WizardDescriptor.java:888)
   at org.openide.WizardDescriptor.updateState(WizardDescriptor.java:832)
   at org.openide.loaders.TemplateWizard.updateState(TemplateWizard.java:757)
   at org.netbeans.modules.project.ui.NewFileWizard.updateState(NewFileWizard.java:122)
   at org.openide.WizardDescriptor$Listener.stateChanged(WizardDescriptor.java:2050)
   at org.openide.util.WeakListenerImpl$Change.stateChanged(WeakListenerImpl.java:329)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119)
   at org.netbeans.modules.project.ui.TemplateChooserPanel.stateChanged(TemplateChooserPanel.java:182)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:133)
   at org.openide.util.ChangeSupport.fireChange(ChangeSupport.java:119)
   at org.netbeans.modules.project.ui.TemplateChooserPanelGUI.fireChange(TemplateChooserPanelGUI.java:171)
   at org.netbeans.modules.project.ui.TemplateChooserPanelGUI.access$400(TemplateChooserPanelGUI.java:88)
   at org.netbeans.modules.project.ui.TemplateChooserPanelGUI$FileChooserBuilder.fireChange(TemplateChooserPanelGUI.java:383)
   at org.netbeans.modules.project.ui.TemplatesPanelGUI.propertyChange(TemplatesPanelGUI.java:335)
   at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
   at java.awt.Component.firePropertyChange(Component.java:8381)
   at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel.access$700(TemplatesPanelGUI.java:466)
   at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel$1.run(TemplatesPanelGUI.java:542)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705)
   at java.awt.EventQueue.access$000(EventQueue.java:101)
   at java.awt.EventQueue$3.run(EventQueue.java:666)
   at java.awt.EventQueue$3.run(EventQueue.java:664)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:675)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:153)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:121)
   at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
   at java.awt.Dialog.show(Dialog.java:1072)
   at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1038)
   at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1072)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1060)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:126)
   at org.openide.util.Mutex.doEventAccess(Mutex.java:1361)
   at org.openide.util.Mutex.readAccess(Mutex.java:271)
   at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1045)
   at java.awt.Component.show(Component.java:1650)
   at java.awt.Component.setVisible(Component.java:1602)
   at java.awt.Window.setVisible(Window.java:1013)
   at java.awt.Dialog.setVisible(Dialog.java:1003)
   at org.netbeans.core.NotifyExcPanel.updateState(NotifyExcPanel.java:392)
   at org.netbeans.core.NotifyExcPanel.access$400(NotifyExcPanel.java:97)
   at org.netbeans.core.NotifyExcPanel$2.run(NotifyExcPanel.java:323)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705)
   at java.awt.EventQueue.access$000(EventQueue.java:101)
   at java.awt.EventQueue$3.run(EventQueue.java:666)
   at java.awt.EventQueue$3.run(EventQueue.java:664)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:675)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:153)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:121)
   at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
   at java.awt.Dialog.show(Dialog.java:1072)
   at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1038)
   at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1072)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1060)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:126)
   at org.openide.util.Mutex$1AWTWorker.run(Mutex.java:1377)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:241)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705)
   at java.awt.EventQueue.access$000(EventQueue.java:101)
   at java.awt.EventQueue$3.run(EventQueue.java:666)
   at java.awt.EventQueue$3.run(EventQueue.java:664)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:675)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:153)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)