Step-1). Configure AMQ broker to listen on "61621" then start it. Step-2). Deploy the "activemq-rar.rar" (5.9 vesion) to standalone instance of JBoss EAP 6.3 and use the attached "standalone-full.xml" file to start the EAP6.3 as ot has the resource-adapter configuration in it. cd jboss-eap-6.3.0/bin ./standalone.sh -c standalone-full.xml Step-3). Deploy the a simple MDB based application like an EAR containing around 20 MDBs listening to 20 different queues present on the A-MQ side. All these MDBs are very simple MDBs and just displays the received TextMessages. These MDBs have the following annotations in it (see maxSessions = 1). @MessageDriven(activationConfig={@javax.ejb.ActivationConfigProperty(propertyName= "destination" , propertyValue= "java:/jms/queue1/1.0" ), @javax.ejb.ActivationConfigProperty(propertyName= "useJndi" , propertyValue= " true " ), @javax.ejb.ActivationConfigProperty(propertyName= "destinationType" , propertyValue= "javax.jms.Queue" ), @javax.ejb.ActivationConfigProperty(propertyName= "acknowledgeMode" , propertyValue= "Auto-acknowledge" ), @javax.ejb.ActivationConfigProperty(propertyName= "maximumRedeliveries" , propertyValue= "6" ), @javax.ejb.ActivationConfigProperty(propertyName= "initialRedeliveryDelay" , propertyValue= "5000" ), @javax.ejb.ActivationConfigProperty(propertyName= "maxSessions" , propertyValue= "1" )}) . . public void onMessage(Message message) { TextMessage textMessage = (TextMessage) message; try { log.info( "SimpleMdb1 received a message" + textMessage.getText()); } catch (JMSException e) { log.info( "Error in SimpleMdb1 while received a message" ); } } Step-4). Execute the following command and notice around thousand TCP connections as following: netstat -tnlpa | grep TIME_WAIT | grep 61621 ---------------------------------- tcp6 0 0 127.0.0.1:61621 127.0.0.1:39199 TIME_WAIT - tcp6 0 0 127.0.0.1:61621 127.0.0.1:39461 TIME_WAIT - tcp6 0 0 127.0.0.1:61621 127.0.0.1:39935 TIME_WAIT - tcp6 0 0 127.0.0.1:61621 127.0.0.1:38999 TIME_WAIT - tcp6 0 0 127.0.0.1:61621 127.0.0.1:39139 TIME_WAIT - tcp6 0 0 127.0.0.1:61621 127.0.0.1:39922 TIME_WAIT - tcp6 0 0 127.0.0.1:61621 127.0.0.1:40027 TIME_WAIT - tcp6 0 0 127.0.0.1:61621 127.0.0.1:38908 TIME_WAIT -