The visual Camel editor can only handle XML camel files atm I fear. We do not support Java or any other DSL other than XML in our visual editor.
as Lars said, Graphical routes are available only for xml dsl Camel routes.
This is currently not planned to be implemented. but you can vote for [FUSETOOLS-1740] Support Java DSL in Camel Route Graphical Editor - JBoss Issue Tracker (and even provide contributions).
Camel 2.11 is starting to be quite old. It was released in 2013.
Eclipse Luna too.
If possible, I would suggest to upgrade Camel version and Eclipse/Fuse Tooling version. Fuse Tooling is working better with Camel version starting from 2.15 but is no more linked to a specific Camel version.
If you're based on Windows or Mac OS, you can install latest Fuse Tooling following these steps: https://developers.redhat.com/blog/2017/10/10/fuse-development-environment-development-suite-installer/
Otherwise, you can install Red Hat Development Studio which is including latest Fuse Tooling: Red Hat JBoss Developer Studio Overview | Red Hat Developers