diff --git a/build.gradle b/build.gradle
index 0329be6e..faa155b3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,7 +25,7 @@ dependencies {
 }
 
 group = 'com.devopsdemo.tutorial'
-sourceCompatibility = '21'
+sourceCompatibility = '17'
 
 tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'
diff --git a/pom.xml b/pom.xml
index ea9e6ec3..edbe95ca 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,8 +11,8 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <failOnMissingWebXml>false</failOnMissingWebXml>
         <vaadin.version>24.1.0</vaadin.version>
-        <maven.compiler.source>21</maven.compiler.source>
-        <maven.compiler.target>21</maven.compiler.target>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
 	<jacoco.version>0.8.11</jacoco.version>
     </properties>
 
diff --git a/src/main/java/com/devopsdemo/utilities/CaseInsensitiveComparator.java b/src/main/java/com/devopsdemo/utilities/CaseInsensitiveComparator.java
index 7a2b474a..3a1cc99c 100644
--- a/src/main/java/com/devopsdemo/utilities/CaseInsensitiveComparator.java
+++ b/src/main/java/com/devopsdemo/utilities/CaseInsensitiveComparator.java
@@ -4,6 +4,7 @@
 
 /**
  * Case insensitive comparator that extends GenericComparator
+ * comment added by me SAMIR to test GIT hook with jenkins
  */
 public class CaseInsensitiveComparator extends GenericComparator implements Serializable {