I find the bug, not the solution now.
The remote JNDI register a
org.apache.activemq.ra.ActiveMQManagedConnectionFactory.
When a remote lookup is done, the remote JNDI server must serialize this
instance to send to the client.
This instance is connected to an ActiveMQResourceAdapter.
This instance reference a BootstrapContext provided by JBoss.
JBoss provide a RARDeployment for this context, but this instance is not
serializable !
So, the org.apache.activemq.ra.ActiveMQManagedConnectionFactory
connected with a RARDeployment can't be serializable, and can't be use
in client JNDI.
:-(
I open a bug to JBoss.
Regards
Philippe