travis - dist:xenial and language:java (#203)

diff --git a/.travis.yml b/.travis.yml
index fc17d9e..21ea912 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,8 +16,9 @@
 #
 
 sudo: required
-group: deprecated-2017Q3
-language: scala
+dist: xenial
+jdk: openjdk8
+language: java
 services:
 - docker