Our Adapter is not support ClientAcknowledge. public void setAcknowledgeMode(String value) | { | if (trace) | log.trace("setAcknowledgeMode(" + value + ")"); | | if ("DUPS_OK_ACKNOWLEDGE".equals(value) || "Dups-ok-acknowledge".equals(value)) | this.acknowledgeMode = Session.DUPS_OK_ACKNOWLEDGE; | else if ("AUTO_ACKNOWLEDGE".equals(value) || "Auto-acknowledge".equals(value)) | this.acknowledgeMode = Session.AUTO_ACKNOWLEDGE; | else if ("SESSION_TRANSACTED".equals(value)) | this.acknowledgeMode = Session.SESSION_TRANSACTED; | else | throw new IllegalArgumentException("Unsupported acknowledgement mode " + value); | } | Is that on purpose? (easier to ask you guys than read the spec ;-) ) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227365#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...