I am trying to execute an ESB service from a multi-threaded application.  I seem to be finding that when I use the invm courier, I am getting single threaded access to my service.  Has anyone else seen this?  I've attached a simple example to illustrate the problem.  All you should have to do is deploy the CallAnyServiceWebApp and the esbplusspring-esb archives and then run

wget http://localhost:8080/callanyservice/execute?category=esbplusspring&name=test&timeout=50000

in two different windows.  What you will see is that the second wget doesn't execute until the first one returns.

Any help is very much appreciated.