Drop oraclejdk8 on Travis CI

kazuki43zoo · kazuki43zoo · commit 0dbb11e4c206 · 2019-07-18T02:15:34.000+09:00
Fixes gh-368
diff --git a/.travis.yml b/.travis.yml
@@ -4,7 +4,6 @@ sudo: false
 jdk:
   - openjdk12
   - openjdk11
-  - oraclejdk8
   - openjdk8
 
 before_script:
