Add gitlab-ci

.gitlab-ci.yml

@@ -0,0 +1,40 @@
+image: maven:3-openjdk-15-slim
+
+variables:
+  MAVEN_OPTS: " \
+    -Dhttps.protocols=TLSv1.2 \
+    -Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository \
+    -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=WARN \
+    -Dorg.slf4j.simpleLogger.showDateTime=true \
+    -Djava.awt.headless=true"
+  MAVEN_CLI_OPTS: "--batch-mode --errors --fail-at-end --show-version"
+
+cache:
+  paths:
+    - .m2/repository
+
+stages:
+  - build
+  - test
+
+build:
+  stage: build
+  script:
+    - "mvn clean compile $MAVEN_CLI_OPTS"
+  artifacts:
+    paths:
+      - target/
+
+unittest:
+  stage: test
+  needs: [build]
+  script:
+    - "mvn package $MAVEN_CLI_OPTS"
+  artifacts:
+    paths:
+      - target/
+    when: always
+    reports:
+      junit:
+        - target/surefire-reports/TEST-*.xml
+        - target/failsafe-reports/TEST-*.xml