Once you add Camel XML component the camel facet is set to the latest Camel version which is Camel 2.18.1.redhat-000007.
Note that this camel version requires Java 1.8, so if you use Java 1.7 (supported in Fuse on EAP 6.3.0.GA) then you get an error. The error pops up whenever you update the maven project (Maven > Update Project...)