added more juel test cases as a result of this conversation: http://www.nabble.com/How-do-I-get-a-Content-Based-Router-configured-in-XML-with-ActiveMQ--tp15339501s22882p16063142.html
activemq/camel/trunk/camel-core/src/test/java/org/apache/camel/LanguageTestSupport.java