Description Gordon Hirsch 2005-07-26 18:43:46 EDT

If my plugin attempts to load a class through the context class loader
(ContextFinder) when a security manager is installed, the load fails with
ClassNotFoundException. If I remove the security manager, the class load succeeds.

The problem is due to the way ContextFinder checks the call stack. It is looking
for the first class on the stack that is not the context finder itself and not
loaded by the boot class loader. In the case of a security manager, however, I
think there is another class that should be skipped: the (currently anonymous)
inner class that performs the doPrivileged() operation. 

I will attach a test project that reproduces the problem. It works fine when run
normally, but it fails if the following VM options are added to the launch config:

-Djava.security.manager -Djava.security.policy=<policy-file>

(Of course, the policy file should grant all permissions, else there are lots of
other problems :-). The attached project includes such a file.)

I'm also going to attach a patch that worked for me... but perhaps there is a
cleaner solution.