try with oraclejdk9

iluwatar · iluwatar · commit cdf76d064f60 · 2020-08-02T13:49:13.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -8,7 +8,7 @@ language: ruby
 rvm:
   - 2.2.0
 jdk:
-- oraclejdk8
+- oraclejdk9
 
 before_install:
     - sudo apt-get update
