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アプリケーションを実行すると、適切なUIが表示されずに灰色の画面が表示され、アプリケーションが例外をスローし続けるなどの問題が発生しています。この問題を解決するための解決策を教えてください。

  Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
     at javax.swing.plaf.basic.BasicButtonUI.getMinimumSize(Unknown Source)
     at javax.swing.JComponent.getMinimumSize(Unknown Source)
     at java.awt.BorderLayout.minimumLayoutSize(Unknown Source)
     at java.awt.Container.minimumSize(Unknown Source)
     at java.awt.Container.getMinimumSize(Unknown Source)
     at javax.swing.JComponent.getMinimumSize(Unknown Source)
     at java.awt.FlowLayout.minimumLayoutSize(Unknown Source)
     at java.awt.Container.minimumSize(Unknown Source)
     at java.awt.Container.getMinimumSize(Unknown Source)
     at javax.swing.JComponent.getMinimumSize(Unknown Source)
     at java.awt.GridBagLayout.GetLayoutInfo(Unknown Source)
     at java.awt.GridBagLayout.getLayoutInfo(Unknown Source)
     at java.awt.GridBagLayout.ArrangeGrid(Unknown Source)
     at java.awt.GridBagLayout.arrangeGrid(Unknown Source)
     at java.awt.GridBagLayout.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.validateTree(Unknown Source)
     at java.awt.Container.validateTree(Unknown Source)
     at java.awt.Container.validateTree(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.RepaintManager$ProcessingRunnable.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$3.run(Unknown Source)
     at java.awt.EventQueue$3.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.security.ProtectionDomain$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)
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1 に答える 1

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問題が発生するまで、画面内のコンポーネントを1つずつ削除します。あなたのqnの情報では、これ以上何も言えません。

于 2012-09-13T19:00:47.010 に答える