Thanks Radoslav,
I have one more doubt, does https://issues.jboss.org/browse/JBCACHE-1596 addressing the same issue https://issues.jboss.org/browse/JBCACHE-1332 ? or more precisely https://issues.jboss.org/browse/JBCACHE-1631 ?
When we tested with SP-15, JBCACHE-1631 seems like resolved but we have no clue about SP-15 really solved this problem. While testing with SP-14 we were facing strange problem of Thread blocks as mentioned in the JBCACHE-1631 , Any help would be appreciated.