.travis.yml in games_dice-0.2.3 vs .travis.yml in games_dice-0.2.4

@@ -5,6 +5,10 @@
   - "2.0.0"
   - rbx-18mode
   - rbx-19mode
   - ruby-head
   - ree
-
+  - jruby-18mode
+  - jruby-19mode
+env:
+  global:
+    - "JRUBY_OPTS=-Xcext.enabled=true"