Added synchronized to put() and get(). And other public operations but these are unlikely to be performance critical.
Added synchronized to put() and get().
And other public operations but these are unlikely to be performance critical.


git-svn-id: 227c23bb629cf7bef445105b977924772e49ae4f@1111482 13f79535-47bb-0310-9956-ffa450edef68

danc86/jena-core,danc86/jena-core