STR: 0) Download EAP noauth and HornetQ from http://porkchop.devel.redhat.com/devel/candidates/JBEAP/JBEAP-5.1.1-ER1/ 1) Unzip EAP 2) Install HornetQ 3) In Admin Console, 3a) Open DLQ's config, save it without changing anything 3b) Create a new queue, save it In both cases, the error message is just "Error saving... " + list of params. EAP's console however shows exception with message like 08:58:27,355 ERROR [STDERR] Caused by: java.lang.IllegalStateException: pageSize has to be lower than maxSizeBytes. Invalid argument (10485760 < -1)