> So I reason the slow-down must be in the pooling. It would get even
> slower when changed to a SynchronizedHashMap or ConcurrentHashMap.
> Let's test with just the memory reduction for now and see what those
> numbers generate.

The number are comparable. I guess we stop here. The implementation of
Encoding interface will be "cached" for the lifetime of the XSQLVAR object,
won't have allocated memory except the one for the object itself.

Thanks!
Roman