access denied while loading jar files from client
I am creating a platform
that can be started by JWS
and then load plug-ins from client drive.
I've signed my platform (packaged as a jar file),
and set up the security tag in my jnlp,
so that it can access client files.
The plug-ins are packaged as jar files.
And in one of the plug-ins, there is a class that has a JFileChooser field.
While initializing this field, the AccessControlException is thrown.
I can't figure out what is wrong,
So I tried to sign the plug-in, but the problem stands still.
PS. I have made my own ClassLoader,
and this platform works well without JWS.
Please help me, thanks.
Below is the error message:
Java Web Start 1.4.2 主控台,已啟動 Fri Jul 02 01:31:17 CST 2004
Java 2 Runtime Environment:版本 1.4.2,作者:Sun Microsystems Inc.
/*my own log message*/
2004/7/2 上午 01:31:23 pluginmanager.Activater activate /*this is my own classloader*/
配置: activate jar=\Plugins\Common.jar /*load plug-in Common.jar*/
2004/7/2 上午 01:31:23 pluginmanager.Activater activate
細緻: collect resources /*collect other jar files needed by Common.jar*/
2004/7/2 上午 01:31:23 pluginmanager.Activater activate
細緻: load plugin=\Plugins\Common.jar
2004/7/2 上午 01:31:23 pluginmanager.Activater activate
細緻: activating class name=filemanager.FileManager /*instantiate plug-in component*/
java.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
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.checkPropertyAccess(Unknown Source)
at java.lang.System.getProperty(Unknown Source)
at java.io.Win32FileSystem.getUserPath(Unknown Source)
... /*cut*/
at javax.swing.JFileChooser.<init>(Unknown Source)
at filemanager.Open.<init>(Open.java:20)
at filemanager.FileManager.<init>(FileManager.java:38)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
... /*cut*/
at java.lang.Class.newInstance(Unknown Source)
at pluginmanager.Activater.activate(Activater.java:120)
at pluginmanager.PluginManager$ActivateAction.actionPerformed(PluginManager.java:53)
