Create a JBoss EAP 6.1 instance, with the configuration https://github.com/vrolijken/ModeshapePerformance/blob/master/ModeshapePerformance/WebContent/standalone.xml Deploy the war ( https://github.com/vrolijken/ModeshapePerformance/blob/master/ModeshapePerformance/WebContent/ModeshapePerformance.war ) in that server Start the server Using JMeter, load https://github.com/vrolijken/ModeshapePerformance/blob/master/ModeshapePerformance/WebContent/Simple.jmx Using 20 threads, 10 iterations, the first request will usually fail (first 3, but second and third are a consequence of the first one failing) Sometimes more requests fail, sometimes not. Though it is the first request that fails, this does not seem to occur when using 1 JMeter thread.