diff --git a/pom.xml b/pom.xml
index a96662a..d70d879 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,43 +13,37 @@
   <url>https://github.com/DevLab-umontp/API-JAVA-EDT</url>
 
   <properties>
+    <!-- base -->
+    <project.java.version>11</project.java.version>
+    <junit.jupiter.version>5.4.0-M1</junit.jupiter.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <maven.compiler.source>11</maven.compiler.source>
-    <maven.compiler.target>11</maven.compiler.target>
+    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+
+    <!-- https://sonarcloud.io -->
     <sonar.projectKey>DevLab-umontp_API-JAVA-EDT</sonar.projectKey>
     <sonar.organization>devlab-umontp</sonar.organization>
     <sonar.host.url>https://sonarcloud.io</sonar.host.url>
+    <sonar.coverage.jacoco.xmlReportPaths>${project.basedir}/target/site/jacoco/jacoco.xml
+    </sonar.coverage.jacoco.xmlReportPaths>
   </properties>
 
-  <profiles>
-    <profile>
-      <id>github-deploy</id>
-      <repositories>
-        <repository>
-          <id>github</id>
-          <url>http://jarsm2.dyndns.dk</url>
-        </repository>
-      </repositories>
-    </profile>
-  </profiles>
-
-  <dependencyManagement>
-    <dependencies>
-      <dependency>
-        <groupId>org.junit</groupId>
-        <artifactId>junit-bom</artifactId>
-        <version>5.5.2</version>
-        <type>pom</type>
-        <scope>import</scope>
-      </dependency>
-    </dependencies>
-  </dependencyManagement>
-
   <dependencies>
     <dependency>
       <groupId>org.junit.jupiter</groupId>
-      <artifactId>junit-jupiter</artifactId>
-      <version>5.4.0-M1</version>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>${junit.jupiter.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <version>${junit.jupiter.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <version>${junit.jupiter.version}</version>
       <scope>test</scope>
     </dependency>
     <dependency>
@@ -59,6 +53,13 @@
     </dependency>
   </dependencies>
 
+  <licenses>
+    <license>
+      <name>MIT License</name>
+      <url>http://www.opensource.org/licenses/mit-license.php</url>
+    </license>
+  </licenses>
+
   <developers>
     <developer>
       <name>Emerick BIRON</name>
@@ -92,87 +93,110 @@
     </repository>
   </distributionManagement>
 
+
+  <profiles>
+    <profile>
+      <id>release</id>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-source-plugin</artifactId>
+            <version>3.2.1</version>
+            <executions>
+              <execution>
+                <id>attach-sources</id>
+                <goals>
+                  <goal>jar</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-javadoc-plugin</artifactId>
+            <version>3.0.1</version>
+            <executions>
+              <execution>
+                <id>attach-javadocs</id>
+                <goals>
+                  <goal>jar</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-gpg-plugin</artifactId>
+            <version>1.6</version>
+            <executions>
+              <execution>
+                <id>sign-artifacts</id>
+                <phase>verify</phase>
+                <goals>
+                  <goal>sign</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+
   <build>
-    <pluginManagement>
-      <!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
-      <plugins>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-surefire-plugin</artifactId>
-          <version>3.0.0-M5</version>
-          <configuration>
-            <includes>
-              <source>.</source>
-              <include>src/main/java/**</include>
-            </includes>
-          </configuration>
-        </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-failsafe-plugin</artifactId>
-          <version>2.22.0</version>
-        </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.8.1</version>
-          <configuration>
-            <source>11</source>
-            <target>11</target>
-          </configuration>
-        </plugin>
-        <plugin>
-          <groupId>org.sonatype.plugins</groupId>
-          <artifactId>nexus-staging-maven-plugin</artifactId>
-          <version>1.6.7</version>
-          <extensions>true</extensions>
-          <configuration>
-            <serverId>ossrh</serverId>
-            <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-            <autoReleaseAfterClose>true</autoReleaseAfterClose>
-          </configuration>
-        </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-source-plugin</artifactId>
-          <version>2.2.1</version>
-          <executions>
-            <execution>
-              <id>attach-sources</id>
-              <goals>
-                <goal>jar-no-fork</goal>
-              </goals>
-            </execution>
-          </executions>
-        </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-javadoc-plugin</artifactId>
-          <version>2.9.1</version>
-          <executions>
-            <execution>
-              <id>attach-javadocs</id>
-              <goals>
-                <goal>jar</goal>
-              </goals>
-            </execution>
-          </executions>
-        </plugin>
-        <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-gpg-plugin</artifactId>
-          <version>1.5</version>
-          <executions>
-            <execution>
-              <id>sign-artifacts</id>
-              <phase>verify</phase>
-              <goals>
-                <goal>sign</goal>
-              </goals>
-            </execution>
-          </executions>
-        </plugin>
-      </plugins>
-    </pluginManagement>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>3.0.0-M5</version>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-failsafe-plugin</artifactId>
+        <version>3.0.0-M5</version>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.8.1</version>
+        <configuration>
+          <source>${project.java.version}</source>
+          <target>${project.java.version}</target>
+          <encoding>${project.build.sourceEncoding}</encoding>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.sonatype.plugins</groupId>
+        <artifactId>nexus-staging-maven-plugin</artifactId>
+        <version>1.6.8</version>
+        <extensions>true</extensions>
+        <configuration>
+          <serverId>ossrh</serverId>
+          <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+          <autoReleaseAfterClose>true</autoReleaseAfterClose>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+        <version>0.8.6</version>
+        <executions>
+          <execution>
+            <id>prepare-agent</id>
+            <goals>
+              <goal>prepare-agent</goal>
+            </goals>
+          </execution>
+          <execution>
+            <id>report</id>
+            <phase>test</phase>
+            <goals>
+              <goal>report</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
   </build>
 </project>
diff --git a/src/main/java/fr/umontp/edt/Groupe.java b/src/main/java/fr/umontp/edt/Groupe.java
index 068640d..91f0adf 100644
--- a/src/main/java/fr/umontp/edt/Groupe.java
+++ b/src/main/java/fr/umontp/edt/Groupe.java
@@ -278,7 +278,7 @@ private boolean possedeGroupeParent() {
     /**
      * Permet de savoir si ce groupe est contenu dans {@code autreGroupe}
      *
-     * @param autreGroupe {@link Groupe} auquel on vérifie s'il contient le groupe
+     * @param autreGroupes Les {@link Groupe} auquel on vérifie s'ils contiennent le groupe
      *                    actuel (this)
      * 
      * @return {@code boolean}