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Start new persistence unit wizard. It gives me the following defaults: P. Unit name: prjName P. Library: Toplink Essentials Db con: (broken icon) null T. gen strategy: Create Clicking finish gives you: java.lang.reflect.UndeclaredThrowableException at $Proxy14.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153) at java.awt.Dialog$1.run(Dialog.java:515) at java.awt.Dialog.show(Dialog.java:536) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:810) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:853) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:841) at org.openide.util.Mutex.doEventAccess(Mutex.java:1172) at org.openide.util.Mutex.readAccess(Mutex.java:209) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:826) at java.awt.Component.show(Component.java:1300) at java.awt.Component.setVisible(Component.java:1253) at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:461) at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:334) at org.netbeans.modules.project.ui.actions.NewFile.doPerform(NewFile.java:117) at org.netbeans.modules.project.ui.actions.NewFile.actionPerformed(NewFile.java:94) at org.netbeans.modules.project.ui.actions.LookupSensitiveAction.actionPerformed(LookupSensitiveAction.java:100) at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:848) at javax.swing.JComponent.processKeyBindings(JComponent.java:2809) at javax.swing.JComponent.processKeyEvent(JComponent.java:2726) at java.awt.Component.processEvent(Component.java:5265) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:672) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:920) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:798) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:636) at java.awt.Component.dispatchEventImpl(Component.java:3841) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:410) ... 61 more Caused by: java.lang.NullPointerException at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.createPersistenceDDFile(ProviderUtil.java:466) at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.getPUDataObject(ProviderUtil.java:449) at org.netbeans.modules.j2ee.persistence.wizard.unit.PersistenceUnitWizard.instantiate(PersistenceUnitWizard.java:111) at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:949) at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:537) at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:376) at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:218) at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1197) at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:70) at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1676) at org.openide.WizardDescriptor$Listener$2.run(WizardDescriptor.java:1716) at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1161) at org.openide.WizardDescriptor.access$1100(WizardDescriptor.java:70) at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:1723) ... 66 more ==> java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:410) at $Proxy14.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153) at java.awt.Dialog$1.run(Dialog.java:515) at java.awt.Dialog.show(Dialog.java:536) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:810) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:853) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:841) at org.openide.util.Mutex.doEventAccess(Mutex.java:1172) at org.openide.util.Mutex.readAccess(Mutex.java:209) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:826) at java.awt.Component.show(Component.java:1300) at java.awt.Component.setVisible(Component.java:1253) at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:461) at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:334) at org.netbeans.modules.project.ui.actions.NewFile.doPerform(NewFile.java:117) at org.netbeans.modules.project.ui.actions.NewFile.actionPerformed(NewFile.java:94) at org.netbeans.modules.project.ui.actions.LookupSensitiveAction.actionPerformed(LookupSensitiveAction.java:100) at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:848) at javax.swing.JComponent.processKeyBindings(JComponent.java:2809) at javax.swing.JComponent.processKeyEvent(JComponent.java:2726) at java.awt.Component.processEvent(Component.java:5265) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:672) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:920) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:798) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:636) at java.awt.Component.dispatchEventImpl(Component.java:3841) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) Caused by: java.lang.NullPointerException at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.createPersistenceDDFile(ProviderUtil.java:466) at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.getPUDataObject(ProviderUtil.java:449) at org.netbeans.modules.j2ee.persistence.wizard.unit.PersistenceUnitWizard.instantiate(PersistenceUnitWizard.java:111) at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:949) at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:537) at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:376) at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:218) at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1197) at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:70) at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1676) at org.openide.WizardDescriptor$Listener$2.run(WizardDescriptor.java:1716) at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1161) at org.openide.WizardDescriptor.access$1100(WizardDescriptor.java:70) at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:1723) ... 66 more ==> java.lang.NullPointerException at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.createPersistenceDDFile(ProviderUtil.java:466) at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.getPUDataObject(ProviderUtil.java:449) at org.netbeans.modules.j2ee.persistence.wizard.unit.PersistenceUnitWizard.instantiate(PersistenceUnitWizard.java:111) at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:949) at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:537) at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:376) at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:218) at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1197) at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:70) at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1676) at org.openide.WizardDescriptor$Listener$2.run(WizardDescriptor.java:1716) at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1161) at org.openide.WizardDescriptor.access$1100(WizardDescriptor.java:70) at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:1723) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:410) at $Proxy14.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153) at java.awt.Dialog$1.run(Dialog.java:515) at java.awt.Dialog.show(Dialog.java:536) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:810) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:853) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:841) at org.openide.util.Mutex.doEventAccess(Mutex.java:1172) at org.openide.util.Mutex.readAccess(Mutex.java:209) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:826) at java.awt.Component.show(Component.java:1300) at java.awt.Component.setVisible(Component.java:1253) at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:461) at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:334) at org.netbeans.modules.project.ui.actions.NewFile.doPerform(NewFile.java:117) at org.netbeans.modules.project.ui.actions.NewFile.actionPerformed(NewFile.java:94) at org.netbeans.modules.project.ui.actions.LookupSensitiveAction.actionPerformed(LookupSensitiveAction.java:100) at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:848) at javax.swing.JComponent.processKeyBindings(JComponent.java:2809) at javax.swing.JComponent.processKeyEvent(JComponent.java:2726) at java.awt.Component.processEvent(Component.java:5265) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1810) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:672) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:920) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:798) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:636) at java.awt.Component.dispatchEventImpl(Component.java:3841) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Window.dispatchEventImpl(Window.java:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
It seems as duplicate of the issue #80789. In the stack trace is same NPE at org.netbeans.modules.j2ee.persistence.provider.ProviderUtil.createPersistenceDDFile(ProviderUtil.java:466)
Correct subcomponent.
Could you please specify what kind of project did you have?
A project created based on an existing ant file.
Thanks for the info, it seems to be a duplicate of issue 75850. *** This issue has been marked as a duplicate of 75850 ***