java.lang.IllegalArgumentException: focusCycleRoot is not a focus cyle root of aComponent

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    • java.lang.IllegalArgumentException: focusCycleRoot is not a focus cyle root of aComponent at javax.swing.SortingFocusTraversalPolicy.getComponentAfter(SortingFocusTraversalPolicy.java:195) at javax.swing.LayoutFocusTraversalPolicy.getComponentAfter(LayoutFocusTraversalPolicy.java:85) at javax.swing.LegacyGlueFocusTraversalPolicy.getComponentAfter(LegacyGlueFocusTraversalPolicy.java:63) at java.awt.Component.nextFocusHelper(Component.java:6156) at java.awt.Container.nextFocusHelper(Container.java:2197) at java.awt.Component.removeNotify(Component.java:5436) at java.awt.Container.removeNotify(Container.java:1883) at javax.swing.JComponent.removeNotify(JComponent.java:4286) at java.awt.Container.remove(Container.java:531) at java.awt.Container.remove(Container.java:584) at javax.swing.JTable.removeEditor(JTable.java:3761) at javax.swing.JTable.editingStopped(JTable.java:3119) at javax.swing.AbstractCellEditor.fireEditingStopped(AbstractCellEditor.java:124) at javax.swing.DefaultCellEditor$EditorDelegate.stopCellEditing(DefaultCellEditor.java:328) at javax.swing.DefaultCellEditor$3.stopCellEditing(DefaultCellEditor.java:138) at javax.swing.DefaultCellEditor.stopCellEditing(DefaultCellEditor.java:213) at javax.swing.DefaultCellEditor$EditorDelegate.actionPerformed(DefaultCellEditor.java:345) at javax.swing.JComboBox.fireActionEvent(JComboBox.java:1196) at javax.swing.JComboBox.setSelectedItem(JComboBox.java:561) at javax.swing.JComboBox.setSelectedIndex(JComboBox.java:597) at javax.swing.plaf.basic.BasicComboPopup$ListMouseHandler.mouseReleased(BasicComboPopup.java:749) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:228) at java.awt.Component.processMouseEvent(Component.java:5021) at javax.swing.plaf.basic.BasicComboPopup$2.processMouseEvent(BasicComboPopup.java:452) at java.awt.Component.processEvent(Component.java:4818) at java.awt.Container.processEvent(Container.java:1380) at java.awt.Component.dispatchEventImpl(Component.java:3526) at java.awt.Container.dispatchEventImpl(Container.java:1437) at java.awt.Component.dispatchEvent(Component.java:3367) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3214) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2929) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2859) at java.awt.Container.dispatchEventImpl(Container.java:1423) at java.awt.Window.dispatchEventImpl(Window.java:1566) at java.awt.Component.dispatchEvent(Component.java:3367) at java.awt.EventQueue.dispatchEvent(EventQueue.java:445) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130) at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)

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