Accesing JMS thru JNDI from a SAR's initial context

When accesing JMS thru JNDI from a SAR's initial context we had the following JavaEE contraint raised :

17:28:32,733 ERROR [JmsSessionFactoryImpl] 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.jboss.resource.adapter.jms.JmsSessionFactoryImpl.allocateConnection(JmsSessionFactoryImpl.java:380)
at org.jboss.resource.adapter.jms.JmsSessionFactoryImpl.createSession(JmsSessionFactoryImpl.java:370)
at com.bt.xxx.st.connector.STJMSManager.flushMessage(STJMSManager.java:154)
at com.bt.xxx.st.connector.STProtocolHandler.sessionOpened(STProtocolHandler.java:84)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.sessionOpened(DefaultIoFilterChain.java:663)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextSessionOpened(DefaultIoFilterChain.java:372)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$800(DefaultIoFilterChain.java:48)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.sessionOpened(DefaultIoFilterChain.java:782)
at org.apache.mina.core.filterchain.IoFilterAdapter.sessionOpened(IoFilterAdapter.java:88)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextSessionOpened(DefaultIoFilterChain.java:372)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$800(DefaultIoFilterChain.java:48)
at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.sessionOpened(DefaultIoFilterChain.java:782)
at org.apache.mina.core.filterchain.IoFilterAdapter.sessionOpened(IoFilterAdapter.java:88)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextSessionOpened(DefaultIoFilterChain.java:372)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireSessionOpened(DefaultIoFilterChain.java:365)
at org.apache.mina.core.service.IoServiceListenerSupport.fireSessionCreated(IoServiceListenerSupport.java:183)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.addNow(AbstractPollingIoProcessor.java:436)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.handleNewSessions(AbstractPollingIoProcessor.java:413)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$200(AbstractPollingIoProcessor.java:57)
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:886)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:65)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)

This is a Java EE contraint, but is granted under JMS.

Our understanding was that SAR container is neither a WEB nor EJB container, thus not applicable to their constraints ... are we correct ?