Test jruby support

.gitlab-ci.yml

@@ -4,6 +4,8 @@ stages:
   - syntax_22
   - syntax_23
   - syntax_24
+  - syntax_j17
+  - syntax_j91
   - linting
 
 ruby_2.1:
@@ -42,6 +44,24 @@ ruby_2.4:
     - ruby -v
     - find . -name "*\.rb" -print0 | xargs -I {} -0 -n1 sh -c "ls {}; ruby -c {}"
 
+jruby_1.7:
+  image: jruby:1.7
+  stage: syntax_j17
+  tags:
+    - ruby
+  script:
+    - ruby -v
+    - find . -name "*\.rb" -print0 | xargs -I {} -0 -n1 sh -c "ls {}; ruby -c {}"
+
+ruby_9.1:
+  image: jruby:9.1
+  stage: syntax_j91
+  tags:
+    - ruby
+  script:
+    - ruby -v
+    - find . -name "*\.rb" -print0 | xargs -I {} -0 -n1 sh -c "ls {}; ruby -c {}"
+
 rubocop:
   stage: linting
   tags: