[papyrus-rt-dev] Fixing checkstyle errors

[Ernesto Posse <eposse@xxxxxxxxxxxxx>]

After change 68572 was merged I pushed 70772 to fix a couple of errors reported by Checkstyle, but while the codegen build succeeds, the tooling build fails (https://hudson.eclipse.org/papyrus-rt/job/Papyrus-RT-Gerrit-master%20(Neon)/48/) on the o.e.p.product plugin with a strange exception:

[ERROR] Failure: hudson.remoting.RequestAbortedException: hudson.remoting.RequestAbortedException: java.io.IOException: Unexpected termination of the channel
Taking screenshot.

I touched two files on tooling, but as you can see in the change-set, the changes are harmless, so I don't know what's going on.

Any ideas?