ci: improve ci config for maven

.gitlab-ci.yml

@@ -1,13 +1,24 @@
 image: eclipse-temurin:17-jdk-alpine
 
 variables:
-  MAVEN_CLI_OPTS: "-s .m2/settings.xml --batch-mode"
-  MAVEN_OPTS: "-Dmaven.repo.local=.m2/repository"
+  MAVEN_OPTS: >-
+    -Dhttps.protocols=TLSv1.2
+    -Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository
+    -Dorg.slf4j.simpleLogger.showDateTime=true
+    -Djava.awt.headless=true
+
+  MAVEN_CLI_OPTS: >-
+    --batch-mode
+    --errors
+    --fail-at-end
+    --show-version
+    --no-transfer-progress
+    -DinstallAtEnd=true
+    -DdeployAtEnd=true
 
 cache:
   paths:
-    - .m2/repository/
-    - target/
+    - .m2/repository
 
 stages:
   - compile
@@ -18,19 +29,23 @@ compile:
   stage: compile
   script:
     - "chmod +x ./mvnw"
-    - "./mvnw --batch-mode compile"
+    - "./mvnw $MAVEN_CLI_OPTS compile"
 
 test:
   stage: test
   script:
     - "chmod +x ./mvnw"
-    - "./mvnw --batch-mode test"
+    - "./mvnw $MAVEN_CLI_OPTS test"
 
 package:
   stage: package
   script:
     - "chmod +x ./mvnw"
-    - "./mvnw --batch-mode package"
+    - "./mvnw $MAVEN_CLI_OPTS package -DskipTests=true"
   artifacts:
+    name: "Maven artifacts from $CI_PROJECT_NAME on $CI_COMMIT_REF_SLUG"
     paths:
-      - target/netneutrality-jar-with-dependencies.jar
+      - "**/target"
+    reports:
+      junit:
+        - "**/target/*-reports/TEST-*.xml"