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February 1st, 2011, 02:02 PM
#1
Applet security ( accessClassInPackage)
I have an applet which sends a base64-encoded serialized copy of its internal state (a bunch of graphical objects) to a web server, where it is stored in a databse. When the applet is reloaded, the base64 serialised string is supplied as a parameter to the applet. This works fine on some systems, but on others it comes up with an exception from the security manager (java.lang.RuntimePermission: accessClassInPackage.sun.awt.windows) at the point where I use readObject to deserialise the state.
I can overcome this by adding this line to my java.policy file:
permission java.lang.RuntimePermission "accessClassInPackage.sun.awt.windows";
However, I can't expect all client systems connecting to the web server to do this. The problem is happening when I use readObject to deserialise the state. Does anyone have any idea how I can overcome this please?
TIA!
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