I di find the reason. I missed the line Import-Package: ..., com.jayway.jsonpath
in the MANIFEST.MF I'd expect a ClassDefNotFound Error in this case, the other one does say unfortunately nothing. Best - Gerald -- View this message in context: http://camel.465427.n5.nabble.com/Execution-of-com-jayway-jsonpath-JsonPath-methods-fail-with-a-CamelExecutionException-tp5782403p5782469.html Sent from the Camel - Users mailing list archive at Nabble.com.