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java.lang.NullPointerException: 	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.findOrCreateStructureDef(BeanDataControlProvider.java:320)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.addStructureDef(BeanDataControlProvider.java:631)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.addDefs(BeanDataControlProvider.java:389)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.findOrCreateStructureDef(BeanDataControlProvider.java:325)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.addStructureDef(BeanDataControlProvider.java:482)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.addDefs(BeanDataControlProvider.java:389)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.findOrCreateStructureDef(BeanDataControlProvider.java:325)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.addStructureDef(BeanDataControlProvider.java:482)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.addDefs(BeanDataControlProvider.java:389)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.findOrCreateStructureDef(BeanDataControlProvider.java:325)	at oracle.adfdtinternal.model.adapter.generic.BeanDataControlProvider.buildStructure(BeanDataControlProvider.java:294)	at oracle.adfdtinternal.model.adapter.ejb.EjbDataControlProvider.createDefinition(EjbDataControlProvider.java:258)	at oracle.adfinternal.model.adapter.generic.BeanAbstractAdapter.invokeUI(BeanAbstractAdapter.java:61)	at oracle.adf.dt.factories.adapter.DCFactoryAdapter.createDataControl(DCFactoryAdapter.java:223)	at oracle.adf.dt.ProjectCompileListener.invokeFactory(DataControlFactoryMenuListener.java:196)	at oracle.adf.dt.DataControlFactoryMenuListener.handleEvent(DataControlFactoryMenuListener.java:139)	at oracle.ide.controller.IdeAction.performAction(IdeAction.java:525)	at oracle.ide.controller.IdeAction$1.run(IdeAction.java:772)	at oracle.ide.controller.IdeAction.actionPerformedImpl(IdeAction.java:789)	at oracle.ide.controller.IdeAction.actionPerformed(IdeAction.java:498)	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)	at javax.swing.AbstractButton.doClick(AbstractButton.java:302)	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1000)	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1041)	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)	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)