WEBrick tests are failing at the moment.

https://travis-ci.org/jruby/jruby/jobs/16401033#L287

From the stack trace, you see that webrick/config.rb:14 is requiring webrick/utils, but we are picking up the one in the test tree (https://github.com/jruby/jruby/blob/e86a6b53c016e6c267865fdb49b93bdc729030d3/test/mri/webrick/utils.rb) instead of the one in the lib tree.

I suspect that f98f362 added tests that exposes this issue.