java.lang.NullPointerException: No last correlation to save
edu.iastate.metnet.metaomgraph.ui.MetaOmTablePanel.keepLastCorrelation(MetaOmTablePanel.java:5331)
edu.iastate.metnet.metaomgraph.ui.MetaOmTablePanel.actionPerformed(MetaOmTablePanel.java:4263)
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
javax.swing.AbstractButton.doClick(AbstractButton.java:376)
javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:842)
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:886)
java.awt.Component.processMouseEvent(Component.java:6539)
javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
java.awt.Component.processEvent(Component.java:6304)
java.awt.Container.processEvent(Container.java:2239)
java.awt.Component.dispatchEventImpl(Component.java:4889)
java.awt.Container.dispatchEventImpl(Container.java:2297)
java.awt.Component.dispatchEvent(Component.java:4711)
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
java.awt.Container.dispatchEventImpl(Container.java:2283)
java.awt.Window.dispatchEventImpl(Window.java:2746)
java.awt.Component.dispatchEvent(Component.java:4711)
java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
java.awt.EventQueue.access$500(EventQueue.java:97)
java.awt.EventQueue$3.run(EventQueue.java:709)
java.awt.EventQueue$3.run(EventQueue.java:703)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
java.awt.EventQueue$4.run(EventQueue.java:733)
java.awt.EventQueue$4.run(EventQueue.java:731)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
java.awt.EventDispatchThread.run(EventDispatchThread.java:82)