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From Jeremy Boynes <>
Subject Change to GBean class loader
Date Wed, 02 Jun 2004 22:02:50 GMT
Currently the GBean invoker sets the thread context classloader to the 
classloader that was used to load the GBean instance (typically the 
URLClassLoader for the Configuration).

This takes about 50% of the end-to-end time for a local invoke and most 
of the time it has no impact as the target operation does not need to 
load any classes.

We plan to change this so that the classloader does not get reset every 
time. If the target should need to load classes, we are going to make 
the classloader available through the GBean context. This will also 
avoid the permission check that determines if the class is even allowed 
to set the TCL.

This will break a couple of GBeans, especially in deployment where 
classes get loaded all the time - these will be changed to use the new 
mechanism (get the CL from the context and set into the thread).


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