CachingSessionFactory - using different Pool strategies?

The current CSF implementation is tightly coupled to SimplePool. It would be nice to be able to use different Pool implementations for the CSF.

Currently, the problem is in 2 methods that CSF exposes which are coupled to SimplePool, namely:
public void setPoolSize(int poolSize)
and
public void setSessionWaitTimeout(long sessionWaitTimeout).

Would it be possible to change the SimplePool field to a generic Pool and add a new interface, PoolConfigurator with these specific methods to maintain backwards-compatibility and mark the coupled methods and the new PoolConfigurator as @Deprecated? This would keep backwards-compatibility for some time while allowing for different Pools to be used.

A more generic method for customization could be used in the future: public void configurePool(Pool pool). To be able to configure the pool from XML, maybe something like: public void configurePool(Expression expression)?

WDYT?

Start by reading CachingSessionFactory and its current SimplePool usage, especially setPoolSize(int) and setSessionWaitTimeout(long). Review the Pool and proposed PoolConfigurator responsibilities, including how pool configuration is represented in XML. Done means supporting alternate Pool implementations while preserving the stated backwards-compatibility requirements.