dist: trusty
language: java
jdk:
  - oraclejdk8
  - openjdk8
script: "mvn verify"
sudo: false
cache:
  directories:
   - $HOME/.m2/repository

language: java
jdk:
  - openjdk8
  - openjdk11
script: "mvn verify"
sudo: false
cache:
  directories:
   - $HOME/.m2/repository

Add JDK 11 to Travis testing matrix, update distro that is used.
Add JDK 11 to Travis testing matrix, update distro that is used.
