Question

我正在使用带有mysql连接的java applet。我使用Netbeans来构建路径。当我的applet在localhost中工作时，我收到了一个错误。

Exception in thread "Abandoned connection cleanup thread" java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "setContextClassLoader")
    at java.security.AccessControlContext.checkPermission(Unknown Source)
    at java.security.AccessController.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPermission(Unknown Source)
    at sun.plugin2.applet.AWTAppletSecurityManager.checkPermission(Unknown Source)
    at java.lang.Thread.setContextClassLoader(Unknown Source)
    at com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:38)

我只使用mysql-applet Netbeans。你能救我吗？

Answer 1

如果将MySQL Connector / J升级到5.1.26，则应修复此问题。之前有一个'setContextClassLoader（）'调用，由于其他原因被删除。见http://bugs.mysql.com/bug.php?id=68556

带有Mysql ExceptionInInitializerError的Java Applet

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