The documentation references the Infinispan replication queue on a couple of places. The replication queue is deprecated in Infinispan, however, and WildFly is actually deprecating the configuration options for the replication queue (see https://github.com/wildfly/wildfly/pull/8917).

I think we should just remove these references, replacing them by a more generic text. For example, I'd replace

With asynchronous replication, Infinispan implements a replication queue that is used by a background thread to carry out replication.

with something like

With asynchronous replication, Infinispan uses a thread pool to carry out replication on background.