So, further testing has revealed that it was not my configuration file. Instead I found differences based on the version of ActiveMQ I used:
5.3.1 works fine 5.3.2 works fine 5.4.2 fails ~30% of the time 5.5.0 works fine > To: users@camel.apache.org > Subject: RE: InOut over JMS always leads to Timout (ExchangeTimedOutException) > Date: Sat, 2 Apr 2011 13:47:48 -0500 > > > All: > > I just downloaded and installed ActiveMQ 5.5.0 and when I ran my test it > passed! > > Although it could be that the new version of ActiveMQ fixed the problem - > right now I suspect my activemq.xml configuration was in some way causing > this. I will do more investigation and report back with my findings. > > Thanks to everyone who replied. > > Mike L. (aka patzerbud) > >