0

我不知道为什么会这样，但有一天它很好。现在，我尝试运行代码并得到一个ExceptionInInitializerError. 这是得到它的行：

final JButton connect = new JButton("Connect");

堆栈跟踪：

Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError
        at program.gui.Chat.<init>(Chat.java:44)
        at program.gui.GUI.actionPerformed(GUI.java:176)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:19
95)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.jav
a:2318)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel
.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242
)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
        at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:8
09)
        at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMen
uItemUI.java:850)
        at java.awt.Component.processMouseEvent(Component.java:6289)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
        at java.awt.Component.processEvent(Component.java:6054)
        at java.awt.Container.processEvent(Container.java:2041)
        at java.awt.Component.dispatchEventImpl(Component.java:4652)
        at java.awt.Container.dispatchEventImpl(Container.java:2099)
        at java.awt.Component.dispatchEvent(Component.java:4482)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577
)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)

        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
        at java.awt.Container.dispatchEventImpl(Container.java:2085)
        at java.awt.Component.dispatchEvent(Component.java:4482)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:644)
        at java.awt.EventQueue.access$000(EventQueue.java:85)
        at java.awt.EventQueue$1.run(EventQueue.java:603)
        at java.awt.EventQueue$1.run(EventQueue.java:601)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessCo
ntrolContext.java:87)
        at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessCo
ntrolContext.java:98)
        at java.awt.EventQueue$2.run(EventQueue.java:617)
        at java.awt.EventQueue$2.run(EventQueue.java:615)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessCo
ntrolContext.java:87)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:614)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
ad.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.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)
Caused by: java.lang.NullPointerException
        at GPAMaster.locale.Locale.get(Locale.java:30)
        at GPAMaster.locale.Messages$Chat.<clinit>(Messages.java:84)
        ... 39 more
4

3 回答 3

1

看起来这实际上是Messages.Chat. 查看 Messages.java 第 84 行和 Locale.java 第 30 行。这些是相关行 -Chat我怀疑您的 GUI 有点无关紧要。

如果没有看到该代码，很难准确地猜出哪里出了问题，但这可能就像没有针对您的语言环境的所有本地化消息一样。

于 2011-09-21T11:27:48.100 回答
0

您可以在该堆栈跟踪的底部看到问题的字符串提示：

Caused by: java.lang.NullPointerException
GPAMaster.locale.Locale.get(Locale.java:30)
    at GPAMaster.locale.Messages$Chat.<clinit>(Messages.java:84)
    ... 39 more

所以这意味着你有一个名为的类嵌套Chat在一个名为包含静态方法的任何静态块或初始化程序。MessagesLocale.get()NullPointerException<clinit>Chat

如果您向我们展示Messages.java第 84Locale.java行和第 30 行附近，我们可能会提供更多帮助。

于 2011-09-21T11:31:28.103 回答
0

这是异常的关键语句

Caused by: java.lang.NullPointerException at GPAMaster.locale.Locale.get(Locale.java:30) at GPAMaster.locale.Messages$Chat.<clinit>(Messages.java:84) ... 39 more：

您在构造函数之前调用的一些静态初始化代码中有一个 Null 指针......解决这个问题，它应该再次工作:)

于 2011-09-21T11:31:32.377 回答