*/
void returnToCache(Object key, Connection theCon) {
Object value = inUse.remove(key);
// remove key/value from used statements
if (value != null) {
LRUCache theCache =
(LRUCache) masterPrepStmtCache.get(theCon.toString());
theCache.put(key, value); // place back in cache, ready for re-use
}
}