[jboss-dev-forums] [Design of POJO Server] - Re: Register dynamic class loading with a domain

[adrian@jboss.org]

"adrian at jboss.org" wrote : 
  | 2) The way the IIOP WebCL processing is done now is incorrect in my opinion.
  | ...
  | 3) The way the classloaders currently work is that they first check
  | for the class resource existing. 
  | 

The simplest way to do this (similar to how it works now) is pretty ugly.
i.e. Something like:

  | public Class<?> loadClass(...)
  | {
  |    Class<?> result = current classloading code
  |    if (result == null)
  |       result = runClassNotFoundHandlers(this, ...);
  |    if (result == null)
  |       throw ClassNotFoundException(...); 
  |    return result;
  | }
  | 

It's ugly in that you've got to allow the ClassNotFoundHandler
to say, I'm defining this class against a different classloader so don't invoke
defineClass() yourself.

The protocol/api that lets it do that, would potentially be a major security hole,
it would certainly be open to abuse. :-)

The alternative is a lot more complicated since the ClassNotFoundHandler
would probably have to take part in the class search and caching algorithms
(general solution).

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