language: ruby
sudo: false
env:
  global:
    - 'JRUBY_OPTS=--debug'
rvm:
  - '2.0'
  - '2.1'
  - '2.2'
  - '2.3.1'
  - 'jruby-9'
script: bundle exec rspec

language: ruby
sudo: false
env:
  global:
    - 'JRUBY_OPTS=--debug'
rvm:
  - '2.0'
  - '2.1'
  - '2.2'
  - '2.3'
  - '2.4'
  - 'jruby-9'
script: bundle exec rspec

Add Ruby 2.4 to Travis test list.
Add Ruby 2.4 to Travis test list.
