Java HotSpot Virtual Machine

I welcome any responses to this question as I am not in design phase yet.

I am working with an application that does some sort of hibernate caching when a user hits an empty cache for the first time. When multiple users hit the cache, which happens because the cache takes a couple minutes to load, there are major problems.

I think if I synchronize access to the caching I may avoid this, but I am still apt to have a long caching being done for the first user.

Does anybody know of anyway I can cache what I need to as the JVM starts up?

WAS 5.0.

Thanks.