2

I am trying to run my applet with JDK8 but i'm getting below exception on java console at this line of my code 

SplitPaneH = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);

Traces

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)

But it was worked well with JDK7. I am not getting what is the problem and how to solve it. And i tried downloading 'jsdg-stubs-jre1.5.jar' which contains sun.swing classes and copying that jar to WEB-INF/lib folder but no use. How to solve it please help me. TIA!

Improve this question
5
  • What operating system? What browser? Commented Sep 26, 2016 at 9:20
  • @AdrianColomitchi Windows and IE11 Commented Sep 26, 2016 at 9:21
  • Does you applet try to connect back to the server once loaded? How many jars the applet needs? Commented Sep 26, 2016 at 9:23
  • applet need 13 jars Commented Sep 26, 2016 at 9:26
  • For me worked the -nosecurity option: javaws -nosecurity start.jnlp Commented Sep 11, 2019 at 17:32

2 Answers 2

Reset to default
3

"accessClassInPackage.sun.swing" which signifies that in Webstart it is not allowed to use the package sun.swing. You need to sign your applet, and with latest jdk 8 security, will block any applet signed with an untrusted certificate authority.So if you self sign this applet put low the security settings.untill it executes. As an example here.

The thing with java 8 is that we have the security level ranging from high to very high ,while on java 7 it ranged from medium and above.The setting was only intended to block malicious or unsigned apps in java 8.However sometimes it may cause trouble with active X controls.If your app is running using low setting ,good otherwise i suggest java7, unless you dont use enhanced features like lambda expressions and other stuff

Improve this answer
Sign up to request clarification or add additional context in comments.

7 Comments

i am using signed applet only still getting same error
Did you try lowering the security settingshere
which security settings i have to change Java or browser?
Follow the example above and try
already i did this, i can't change Java security level to Medium because i'm using JDK 8u31. So, i have added my site to Exception List.
|
2

Between java7 and java8 there were a bunch of security restrictions added to the way applets are constrained in sandbox mode - especially in communicating over the network.

Check if anything here applies to your case - it may not be applicable, but these need to be checked anyway.

Improve this answer

Comments

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.