Hi, In default mode, when: advancedCache.withFlags(Flag.FORCE_WRITE_LOCK).get("k") gets executed a W lock is acquired on "k". With the new optimistic locking model we only acquire a locks at prepare time, so the semantic of the above call might need to change. What I have in mind is to force the W lock acquisition to happen but only at prepare time - how does that sound? Cheers, Mircea _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev