The sole point of this CI build is to give a quick feedback that pull requests via Github are in a good shape (i.e., code still compiles and doesn't breaks anything in an obvious way).

Travis CI doesn't have oraclejdk6 out of the box (according to http://about.travis-ci.org/docs/user/languages/java/). However, it should be possible to install it (https://github.com/travis-ci/travis-cookbooks/tree/master/ci_environment/java/recipes) but requires some extra efforts.

Could we use oraclejdk7 right now?