CAMEL-7689: camel-swagger has a spring servlet when using spring to lookup CamelContext.
CAMEL-7689: camel-swagger has a servletlistener servlet when using that to lookup CamelContext.
Add test case covering Camel Custom Tracer
Extend the test case to add a customTraceEventHandler
CAMEL-7747: Braader jline version range so we can support more Karaf versions.