Fixed jdk install fails in travis CI

rougou · jknack · commit 219f33818802 · 2019-10-18T09:28:09.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,5 @@
 sudo: false
+dist: trusty
 language: java
 jdk:
   - oraclejdk8
