revert to trusty for JDK8 as Java installer fails on xenial

Vladimir Kotal · Vladimir Kotal · commit 4ba0ec70577f · 2019-06-17T13:52:22.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -24,7 +24,7 @@ jobs:
   - stage: test
     name: Linux + Oracle JDK 8
     os: linux
-    dist: xenial
+    dist: trusty
     sudo: required
     jdk: oraclejdk8
     install: true
