Clean up cache code a bit, pull cache up to the class level and make it static so that it's more useful.
Clean up cache code a bit, pull cache up to the class level and make
it static so that it's more useful.

Might want to add some cache-cleaning code later (every call after more
than 10 minutes have passed since the last cache-clean should scan
through the cache and delete entries older than a time limit, etc).


git-svn-id: 8699849808240b02471d01f5aaa03ec0c1cb68ee@253696 13f79535-47bb-0310-9956-ffa450edef68

apache/axis1-java,apache/axis1-java,apache/axis1-java,apache/axis1-java