Add Java 9 to Travis

ashawley · ashawley · commit 12a1b6e8ab8f · 2017-12-24T10:48:10.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -22,6 +22,7 @@ addons:
 jdk:
   - openjdk6
   - oraclejdk8
+  - oraclejdk9
 
 notifications:
   email: adriaan.moors@lightbend.com
