diff --git a/.travis.yml b/.travis.yml
index eb54f367cd1..11b3449e4f6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,9 @@ dist: trusty
 
 language: java
 jdk:
-  - openjdk11
+  - oraclejdk9
+    #  - openjdk11
+
 env:
   global:
     - MAVEN_OPTS="-Xmx10244M -Xss128M -XX:MetaspaceSize=512M -XX:MaxMetaspaceSize=1024M -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC"