Hi, don't know if this is of any use or not, but I'd like to open to this to answer any questions around OpenVZ and answer any questions to do with Java.
Specifically as we know there are lots of myths around Java not working on OpenVZ, it's bloated etc.
If you have any Java performance questions in general, optimizing memory, OpenVZ & Java related, post them here and I'll try my best to answer it.
This is just a nice thing for the community :)
And FYI I do have extensive knowledge on the JVM and Java coding in general both academically and professional, especially to do with performance/optimization. It's my research area :)