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java.util.NoSuchElementException at java.util.ArrayList$Itr.next(ArrayList.java:854) at org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor.getPrimaryKeyField(MetadataDescriptor.java:1048) at org.eclipse.persistence.internal.jpa.metadata.accessors.MetadataAccessor.getReferencedField(MetadataAccessor.java:442) at org.eclipse.persistence.internal.jpa.metadata.accessors.MetadataAccessor.getReferencedField(MetadataAccessor.java:430) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.addMultipleTableKeyFields(EntityAccessor.java:231) at org.netbeans.jpa.modeler.db.accessor.EntitySpecAccessor.addMultipleTableKeyFields(EntitySpecAccessor.java:112) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.processInheritancePrimaryKeyJoinColumns(EntityAccessor.java:1183) at org.eclipse.persistence.internal.jpa.metadata.inheritance.InheritanceMetadata.processInheritanceRoot(InheritanceMetadata.java:265) at org.eclipse.persistence.internal.jpa.metadata.inheritance.InheritanceMetadata.process(InheritanceMetadata.java:230) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.processInheritance(EntityAccessor.java:1144) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.processTableAndInheritance(EntityAccessor.java:1385) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:683) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:678) at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.processStage2(MetadataProject.java:1808) at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:573) at org.netbeans.db.modeler.persistence.internal.jpa.deployment.JPAMPersistenceUnitProcessor.processORMetadata(JPAMPersistenceUnitProcessor.java:49) at org.netbeans.db.modeler.specification.model.util.DBModelerUtil.createDBMapping(DBModelerUtil.java:255) at org.netbeans.db.modeler.specification.model.util.DBModelerUtil.loadModelerFileInternal(DBModelerUtil.java:193) at org.netbeans.db.modeler.specification.model.util.DBModelerUtil.loadModelerFile(DBModelerUtil.java:178) at org.netbeans.modeler.core.NBModelerUtil.loadModelerFile(NBModelerUtil.java:57) at org.netbeans.modeler.specification.model.file.action.ModelerFileActionListener.openModelerFile(ModelerFileActionListener.java:143) at org.netbeans.db.modeler.specification.model.file.action.DBViewerActionListener.init(DBViewerActionListener.java:58) at org.netbeans.jpa.modeler.specification.model.util.JPAModelerUtil.openDBViewer(JPAModelerUtil.java:1566) at org.netbeans.jpa.modeler.listener.ShortcutListener.keyPressed(ShortcutListener.java:43) at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:249) at java.awt.Component.processKeyEvent(Component.java:6493) at javax.swing.JComponent.processKeyEvent(JComponent.java:2832) at java.awt.Component.processEvent(Component.java:6312) at java.awt.Container.processEvent(Container.java:2236) at java.awt.Component.dispatchEventImpl(Component.java:4891) at java.awt.Container.dispatchEventImpl(Container.java:2294) at java.awt.Component.dispatchEvent(Component.java:4713) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771) at java.awt.Component.dispatchEventImpl(Component.java:4762) at java.awt.Container.dispatchEventImpl(Container.java:2294) at java.awt.Window.dispatchEventImpl(Window.java:2750) at java.awt.Component.dispatchEvent(Component.java:4713) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.awt.EventQueue$4.run(EventQueue.java:729) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) 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)