JMS / Seam - Exceptions when creating a session?

I have a JBoss Seam 2.3 application that is trying to write events to a JMS queue on JBoss AS 7.1. Records occur in stateless EJBs and use the standard seam injection mechanism. The code looks something like this (not an exact piece of code. It just shows the type of thing I'm doing):

@Name("myEjb")
@Stateless
public class MyEjb {

   ...

   @In
   private QueueSession queueSession;

   @In
   private QueueSender myQueueSender;

   ...


   public foo() {
       ...
       // Code to place a TextMessage on the queue
       ...
   }
}

However, I notice that when the application is under load, and this method is called a lot, I get the following exception in the logs:

21:58:57,800 ERROR [org.hornetq.ra.HornetQRASessionFactoryImpl] (http--0.0.0.0-8080-1) Could not create session: javax.jms.IllegalStateException: Only allowed one session per connection. See the J2EE spec, e.g. J2EE1.4 Section 6.6

at org.hornetq.ra.HornetQRASessionFactoryImpl.allocateConnection(HornetQRASessionFactoryImpl.java:816)

at org.hornetq.ra.HornetQRASessionFactoryImpl.createQueueSession(HornetQRASessionFactoryImpl.java:237)

at org.jboss.seam.jms.QueueSession.create(QueueSession.java:38) [jboss-seam.jar:2.3.0.Final]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_07]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_07]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_07]

at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_07]

at org.jboss.seam.util.Reflections.invoke(Reflections.java:22) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.callComponentMethod(Component.java:2313) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.callCreateMethod(Component.java:2236) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.newInstance(Component.java:2196) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.getInstance(Component.java:2034) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.getInstance(Component.java:1996) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:60) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.getInstanceInAllNamespaces(Component.java:2427) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.getValueToInject(Component.java:2366) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.injectAttributes(Component.java:1743) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.Component.inject(Component.java:1561) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:61) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) [jboss-seam.jar:2.3.0.Final]

at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) [jboss-seam.jar:2.3.0.Final]

The foo () method is ultimately called after sending the request to the RESTful service. A client can potentially make several calls to this service in a row, but they are all different calls.

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