Merge pull request #110 from wongoo/fix-travis-jdk

fix travis jdk version
diff --git a/.travis.yml b/.travis.yml
index db25d8d..f1532d2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,11 @@
 language: go
 
+matrix:
+  include:
+    - language: java
+      jdk: openjdk8
+
 go:
-  - "1.11"
   - "1.12"
 
 script: