I have installed "activemq-ra-4.0-M4.rar" on "IBM WebSphere Application Server - ND, 126.96.36.199" with out-of-the-box configuration. Have 2 mdb's that processes message posted by this ra. Everything is working fine. However, I see the following error message a bootup time.
J2CUtilityCla E J2CA0047E: Property redeliveryBackOffMultiplier for ResourceAdapter cells/cell/nodes/node/resources.xml#J2CResourceAdapter_1144182320930 has an invalid type of java.lang.Short.