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Java Swing GUI异常-线程“ AWT-EventQueue-0”中的异常java.util.NoSuchElementException：矢量枚举

[英]Java Swing GUI exception - Exception in thread “AWT-EventQueue-0” java.util.NoSuchElementException: Vector Enumeration

原文 2010-05-11 15:00:53 3 2 java/ swing/ exception

I get this exception when i run my application. 运行应用程序时出现此异常。 I dont have any idea what is going wrong here. 我不知道这是怎么回事。 Can someone help please. 有人可以帮忙吗。

Exception in thread "AWT-EventQueue-0" java.util.NoSuchElementException: Vector Enumeration at java.util.Vector$1.nextElement(Vector.java:305) at javax.swing.plaf.basic.BasicTableHeaderUI.getPreferredSize(BasicTableHeaderUI.java:778) at javax.swing.JComponent.getPreferredSize(JComponent.java:1634) at javax.swing.ViewportLayout.preferredLayoutSize(ViewportLayout.java:78) at java.awt.Container.preferredSize(Container.java:1599) at java.awt.Container.getPreferredSize(Container.java:1584) at javax.swing.JComponent.getPreferredSize(JComponent.java:1636) at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:702) at java.awt.Container.layout(Container.java:1421) at java.awt.Container.doLayout(Container.java:1410) at java.awt.Container.validateTree(Container.java:1507) at java.awt.Container.validate(Container.java:1480) at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:669) at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQu 线程“ AWT-EventQueue-0”中的异常java.util.NoSuchElementException：java.util.Vector $ 1.nextElement（Vector.java:305）处的矢量枚举，javax.swing.plaf.basic.BasicTableHeaderUI.getPreferredSize（BasicTableHeaderUI.java ：778）在javax.swing.JComponent.getPreferredSize（JComponent.java:1634）在javax.swing.ViewportLayout.preferredLayoutSize（ViewportLayout.java:78）在java.awt.Container.preferredSize（Container.java:1599）在Java javax.swing中的.awt.Container.getPreferredSize（Container.java:1584）在java.awt.Container中的javax.swing.ScrollPaneLayout.layoutContainer（ScrollPaneLayout.java:702）中的JComponent.getPreferredSize（JComponent.java:1636）在Javax.swing。 java.awt.Container.validateTree（Container.java:1507）的java.awt.Container.doLayout（Container.java:1410）的layout（Container.java:1421）at java.awt.Container.validate（Container.java ：1480）at javax.swing.RepaintManager.validateInvalidComponents（RepaintManager.java:669）at javax.swing.SystemEventQueueUtilities $ ComponentWorkRequest.run（SystemEventQu eueUtilities.java:124) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) eueUtilities.java:124）处java.awt.event.InvocationEvent.dispatch（InvocationEvent.java:209）处java.awt.EventQueue.dispatchEvent（EventQueue.java:597）处java.awt.EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java） java.awt.EventDispatchThread.pumpEventsForFilter（EventDispatchThread.java:184）处的java.awt.EventDispatchThread.pumpEventsForHierarchy（EventDispatchThread.java:174）处的java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:169）处的：269） .awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:161）位于java.awt.EventDispatchThread.run（EventDispatchThread.java:122）

2 个解决方案

Problems like this generally happen when you try to update a Swing component outside of the Event Dispatch Thread (EDT). 当您尝试在事件调度线程（EDT）之外更新Swing组件时，通常会发生此类问题。

Read the section from the Swing tutorial on Concurrency for more information and the solution. 阅读Swing 并发教程中的这一节，以获取更多信息和解决方案。

Also make sure the GUI is built on the EDT by using SwingUtilities.invokeLater(...). 另外，通过使用SwingUtilities.invokeLater（...）确保GUI是在EDT上构建的。 Download any example from the Swing tutorial and you will see how this is done. 从Swing教程中下载任何示例，您将看到如何完成此操作。 Since you appear to be using a JTable start with the SimpleTableDemo from the section on "How to Use Tables". 由于您似乎正在使用JTable，因此请从“如何使用表”部分的SimpleTableDemo开始。