Add Oracle Java 9 to Travis build. Closes #1.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/ognl/trunk@1833201 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/.travis.yml b/.travis.yml
index cafe93d..ad87625 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,6 +20,7 @@
   - openjdk7

   - oraclejdk7

   - oraclejdk8

+  - oraclejdk9

 

 after_success:

   - mvn clean cobertura:cobertura coveralls:report