次のエラーが発生する理由を誰かが説明できますか?
スレッド「AWT-EventQueue-0」での例外 java.lang.IllegalStateException: java.awt.Component.addNotify の java.awt.Container.increaseComponentCount(Container.java:3978) での increaseComponentCount() メソッドの呼び出し中にピアが存在しません(Component.java:6917) で java.awt.Container.addNotify(Container.java:2758) で javax.swing.JComponent.addNotify(JComponent.java:4743) で java.awt.Container.addImpl(Container.java: 1114) で javax.swing.CellRendererPane.addImpl(CellRendererPane.java:106) で java.awt.Container.add(Container.java:410) で javax.swing.CellRendererPane.paintComponent(CellRendererPane.java:134) で javax. javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:2016) の javax.swing.plaf.basic.javax.swing.plaf.ComponentUI.update(ComponentUI.java:161) の BasicTableUI.paint(BasicTableUI.java:1812) javax.swing.JComponent.paintComponent(JComponent.java:778) の javax.swing.JComponent.paint (JComponent.java:1054) javax.swing.JComponent.paintToOffscreen(JComponent.java:5221) で javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:295) で javax.swing.RepaintManager.paint(RepaintManager.java: 1206) で javax.swing.JComponent._paintImmediately(JComponent.java:5169) で javax.swing.JComponent.paintImmediately(JComponent.java:4980) で javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:770) で javax. javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:677) の javax.swing で、swing.RepaintManager.paintDirtyRegions(RepaintManager.java:728)。RepaintManager.access$700(RepaintManager.java:59) で javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1621) で java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) で java.awt. EventQueue.dispatchEventImpl(EventQueue.java:705) で java.awt.EventQueue.access$000(EventQueue.java:101) で java.awt.EventQueue$3.run(EventQueue.java:666) で java.awt.EventQueue$3。 (EventQueue.java:664) で java.security.AccessController.doPrivileged(ネイティブ メソッド) で java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) で java.awt.EventQueue.dispatchEvent(EventQueue.java:675) で実行) java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211) で java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128) で java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:121) java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182) で java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221) で java.security.AccessController.doPrivileged (ネイティブメソッド)