The commented-out STREAMING_STATE_TRANSFER JGroups protocols in AS 5 configs have use_reading_thread set to true. AFAIK, this is deprecated in JGroups 2.6.7 that ships with AS 5. I'm guessing this is an oversight? Cheers -- Manik Surtani Lead, JBoss Cache http://www.jbosscache.org manik at jboss.org