Question

我的应用程序有问题，有些时候在控制台中返回此错误，但我找不到原点（所有未知来源）。应用程序似乎在此错误后正常工作，但我想了解什么是附加...我该怎么办？

谢谢你，对不起我的英语！

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0
at javax.swing.plaf.basic.BasicListUI.updateLayoutState(Unknown Source)
at javax.swing.plaf.basic.BasicListUI.maybeUpdateLayoutState(Unknown Source)
at javax.swing.plaf.basic.BasicListUI.getPreferredSize(Unknown Source)
at javax.swing.JComponent.getPreferredSize(Unknown Source)
at javax.swing.ScrollPaneLayout.layoutContainer(Unknown Source)
at java.awt.Container.layout(Unknown Source)
at java.awt.Container.doLayout(Unknown Source)
at java.awt.Container.validateTree(Unknown Source)
at java.awt.Container.validate(Unknown Source)
at javax.swing.RepaintManager.validateInvalidComponents(Unknown Source)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

Answer 1

查看BasicListUI.updateLayoutState()的来源，只有在方法执行时显示的列表更改大小时才会发生这种情况。

最可能的原因是您正在event dispatch thread之外修改模型。这是一个严重的问题，因为它可能导致各种奇怪的行为，甚至是数据损坏。

要解决这些问题，请在需要从EDT外部操作模型时使用SwingUtilities.invokeLater()。

Answer 2

这种类型的错误有时是由更新GUI组件关闭引起的，当它应该在EDT上时完成。

如果修改违反该原则的任何代码无法解决问题，我建议您尝试准备SSCCE＆amp;把它发布到帖子中。

找不到java.lang.ArrayIndexOutOfBoundsException的问题

2 个答案: