[cp-patches] [RFC/JDWP] ClassLoaderReferenceCommandSet

[Aaron Luchko]

Here's two different proposals for the ClassLoaderRefererenceCommandSet
http://java.sun.com/j2se/1.5.0/docs/guide/jpda/jdwp/jdwp-protocol.html#JDWP_ClassLoaderReference

There's only a single command which asks for a list of every class the
ClassLoader has been requested to load. The first way to do this is just
use a hook in the vm. I don't know enough with how ClassLoaders are
handled within the vm to know how easy this would be to implement.

The second method involves a patch to ClassLoader which adds a single
variable loadRequests which will store every Class that is requested to
be loaded.

The patch has the advantages of being vm-agnostic and avoiding yet
another hook into the virtual machine.

On the downside we're putting what seems a useless variable in
ClassLoader and we may induce a small performance penalty (although this
could easily be present in the VM-hook as well).

The ClassLoader patch doesn't need to go in until we're further along if
we use it.

Aaron

jdwpClassLoader_vers1.patch
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jdwpClassLoader_vers2.patch
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classLoader.patch
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