In my Jboss 5.1, I have configured Message Drive Bean(ejb3-interceptors-aop.xml) maxSessions and pool size to 200.

<annotation expr="class(*) AND !class(@org.jboss.ejb3.annotation.Pool)">

         @org.jboss.ejb3.annotation.Pool (value="StrictMaxPool", maxSize=1000, timeout=10000)

      </annotation>

      <annotation expr="!class(@org.jboss.ejb3.annotation.DefaultActivationSpecs)">

         @org.jboss.ejb3.annotation.DefaultActivationSpecs (value={@javax.ejb.ActivationConfigProperty(propertyName="destinationType", propertyValue="javax.jms.Queue"), @javax.ejb.ActivationConfigProperty(propertyName="destination", propertyValue="queue/eureQaTestRun"), @javax.ejb.ActivationConfigProperty(propertyName="maxSession", propertyValue="200")})

      </annotation>

But in the runtime the MDB concurrentCalls are not increasing beyond 99.

Can any one provide some solution for this.