On Mon, 2006-02-06 at 06:24, Kabir Khan wrote:
> I am trying to find out if jboss aop will work within an applet, and have
> stumbled upon a problem when javassist tries to determine if a class exists.
> This seems to be releated to how applets find resources. 
> 
> Isolating this, I have the following code in my applet:
> 
>          ClassLoader cl = Thread.currentThread().getContextClassLoader();
>          System.out.println("ClassLoader: " + cl);
>          URL coll = (URL)cl.getResource("java/util/Collection.class");
> 
>          System.out.println("Resource: " + coll);
> 
> which gives the following output when running with the appletviewer:
> 
> ClassLoader: [EMAIL PROTECTED]
> Resource: null
> 
> If I run it from withing eclipse (debug applet) it can find the resource:
> 
> ClassLoader: [EMAIL PROTECTED]
> Resource:
> jar:file:/C:/Java/jdk/jdk1.5.0_04/jre/lib/rt.jar!/java/util/Collection.class
> 
> Does anybody have any suggestions to what could be going on here?
> 

Security. Something in the stack is not authorized to that url.

Install a security manager and policy for the eclipse test
to reproduce the problem.

> Cheers,
> 
> Kabir
> 
> 
> 
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