Fixed #31

.travis.yml

@@ -1,9 +1,19 @@
-os: linux
-dist: trusty
-language: java
+matrix:
+  include:
+    - os: linux
+      dist: trusty
+      jdk: oraclejdk8
+      script:
+        - ./gradlew check jacocoTestReport --scan
+        - sonar-scanner
+    - os: linux
+      dist: xenial
+      jdk: openjdk8
+    - os: osx
+      osx_image: xcode9.4
+      jdk: oraclejdk11
 
-jdk:
-  - oraclejdk8
+language: java
 
 before_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
@@ -15,12 +25,14 @@ cache:
     - $HOME/.gradle/wrapper/
     - $HOME/.sonar/cache
 
+git:
+  depth: 3
+
 addons:
   sonarcloud:
     organization: siouan
     token:
       secure: "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"
 
 script:
-  - ./gradlew check jacocoTestReport --scan -s
-  - sonar-scanner
+  - ./gradlew check --scan