Skip testing Ruby without JDK
Skip testing Ruby without JDK

Because of the new appliance, we expect to see the string `java`
in the build script in all cases.
This spec is no longer valid.

andyli/travis-build,andyli/travis-build,kevmoo/travis-build,JuliaCI/travis-build,craigcitro/travis-build,kevmoo/travis-build,craigcitro/travis-build,JuliaCI/travis-build