java - 获取 java.security.AccessControlException : access denied ("java.lang.RuntimePermission" "accessClassInPackage.sun.swing") with JDK8?

Question

我正在尝试使用 JDK8 运行我的小程序，但我在这行代码的 java 控制台上遇到异常

SplitPaneH = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);

痕迹

Exception in thread "AWT-EventQueue-2" java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "accessClassInPackage.sun.swing")
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPackageAccess(Unknown Source)
at sun.plugin2.applet.SecurityManagerHelper.checkPackageAccessHelper(Unknown Source)
at sun.plugin2.applet.AWTAppletSecurityManager.checkPackageAccess(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.jb2011.lnf.beautyeye.ch17_split.BESplitPaneDivider.<init>(BESplitPaneDivider.java:77)
at org.jb2011.lnf.beautyeye.ch17_split.BESplitPaneUI.createDefaultDivider(BESplitPaneUI.java:54)
at javax.swing.plaf.basic.BasicSplitPaneUI.installDefaults(Unknown Source)
at javax.swing.plaf.basic.BasicSplitPaneUI.installUI(Unknown Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.JSplitPane.setUI(Unknown Source)
at javax.swing.JSplitPane.updateUI(Unknown Source)
at javax.swing.JSplitPane.<init>(Unknown Source)
at javax.swing.JSplitPane.<init>(Unknown Source)
at javax.swing.JSplitPane.<init>(Unknown Source)
at TeleProvisionManager.InventoryPage.<init>(InventoryPage.java:382)
at TeleProvisionManager.MainFrame.createMainTab(MainFrame.java:2147)
at TeleProvisionManager.MainFrame.<init>(MainFrame.java:1253)
at TeleProvisionManager.LoginChangeGroupDlg.handleContinueButton(LoginChangeGroupDlg.java:791)
at TeleProvisionManager.LoginChangeGroupDlg.jbtnContinueActionPerformed(LoginChangeGroupDlg.java:489)
at TeleProvisionManager.LoginChangeGroupDlg.access$100(LoginChangeGroupDlg.java:56)
at TeleProvisionManager.LoginChangeGroupDlg$4.actionPerformed(LoginChangeGroupDlg.java:355)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicRootPaneUI$Actions.actionPerformed(Unknown Source)
at javax.swing.SwingUtilities.notifyAction(Unknown Source)
at javax.swing.JComponent.processKeyBinding(Unknown Source)
at javax.swing.KeyboardManager.fireBinding(Unknown Source)
at javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source)
at javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source)
at javax.swing.SwingUtilities.processKeyBindings(Unknown Source)
at javax.swing.UIManager$2.postProcessKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(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.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.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)

但是它在 JDK7 上运行得很好。我不明白问题是什么以及如何解决。我尝试下载包含 sun.swing 类的“jsdg-stubs-jre1.5.jar”，并将该 jar 复制到 WEB-INF/lib 文件夹，但没有用。怎么解决请帮帮我。 TIA!

Answer 1

“accessClassInPackage.sun.swing”表示在Webstart中不允许使用sun.swing包。您需要对您的小程序进行签名，并且使用最新的 jdk 8 安全性，将阻止使用不受信任的证书颁发机构签名的任何小程序。因此，如果您自签名此小程序，请降低安全设置。直到它执行。例如here .

java 8 的安全级别是从高到非常高，而 java 7 的安全级别是中及以上。该设置的目的只是为了阻止 java 8 中的恶意或未签名的应用程序。但有时它可能会导致Active X 控件有问题。如果您的应用程序使用低设置运行，则很好，否则我建议使用 java7，除非您不使用 lambda 表达式和其他内容等增强功能