.travis.yml

sudo: false
git:
  depth: 3
language: java
matrix:
  include:
    - name: Oracle JDK 8 on Trusty
      # using `openjdk8` leads to javadoc errors
      jdk: oraclejdk8
      dist: trusty # oraclejdk8 absent in Xenial
    - name: OpenJDK 11
      jdk: openjdk11
env:
  global:
  - TERM=dumb         # for gradle

install: true
script:
- ./gradlew clean build --stacktrace

# cobbled together from
#   https://docs.travis-ci.com/user/languages/java/#projects-using-gradle
#   https://github.com/blox/blox/pull/338#issuecomment-358556137
before_cache:
  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
  - rm -fr $HOME/.gradle/caches/*/fileHashes/
  - rm -fr $HOME/.gradle/caches/jars-3/
cache:
  directories:
  - $HOME/.m2
  - $HOME/.gradle/caches/
  - $HOME/.gradle/wrapper/