Bela, Vladimir and I had a discussion this AM and decided to defer integration of the JGroups multiplexer into AS 4.2.0. Primarily this because we want to ensure the issues discussed in http://jira.jboss.com/jira/browse/JGRP-415 are properly handled before we use the multiplexer in a supported AS release. I will probably add the code hooks to ClusterPartition to support use of the multiplexer (they are already there in JBC 1.4.1), but 4.2.0 will not ship with the multiplexer sar. This approach will leave the potential for 4.2.0 installs to configure the multiplexer once all issues like JGRP-415 are resolved. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4004882#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...