[DEV] update check style

.gitlab-ci.yml

@@ -24,8 +24,7 @@ stages:
 style_job:
   stage: style
   script:
-    - java -jar ~/checkstyle.jar -c CheckStyle.xml `find src/ -name "*.java"`
-    - java -jar ~/checkstyle.jar -c CheckStyle.xml `find test/src/ -name "*.java"`
+    - mvn $MAVEN_CLI_OPTS checkstyle:checkstyle
 
 build_job:
   stage: build
@@ -45,7 +44,6 @@ test_job:
   artifacts:
     when: on_success
     expire_in: 3 day
-    keep: latest
     paths:
       - target/site/jacoco
     reports:
@@ -61,6 +59,5 @@ package_job:
   artifacts:
     when: on_success
     expire_in: 3 day
-    keep: latest
     paths:
       - target/*.jar

pom.xml

@@ -96,6 +96,18 @@
 					<nohelp>true</nohelp>
 				</configuration>
 			</plugin>
+			<!-- Check the style of the code -->
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-checkstyle-plugin</artifactId>
+				<version>3.1.0</version>
+				<configuration>
+					<configLocation>CheckStyle.xml</configLocation>
+					<consoleOutput>true</consoleOutput>
+					<failOnViolation>true</failOnViolation>
+					<failsOnError>true</failsOnError>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 	<!-- Generate Java-docs As Part Of Project Reports -->