diff --git a/Dockerfile b/Dockerfile
index ae99560fd..ce19ac4ef 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,24 +1,11 @@
 # Use an official OpenJDK runtime as a parent image
-FROM openjdk
+FROM openjdk:11-jdk-slim
 
 # Set the working directory inside the container
 WORKDIR /app
 
-# Copy the Maven wrapper and the pom.xml file
-COPY .mvn/ .mvn
-COPY mvnw pom.xml ./
-
-# Copy the project source code
-COPY src ./src
-
-# Use an argument to force a rebuild
-ARG FORCE_REBUILD=unknown
-
-# Package the application
-RUN ./mvnw clean package -Dmaven.test.skip=true && ls -alh /app/target/
-
-# Move the JAR file to the app directory (update this if necessary based on actual JAR names)
-COPY target/*.jar /app/app.jar
+# Copy the JAR file to the app directory (adjust this path according to your actual JAR file name in the target directory)
+COPY target/*.jar app.jar
 
 # Run the jar file
 CMD ["java", "-jar", "app.jar"]
diff --git a/Jenkinsfile b/Jenkinsfile
index 9501332f3..dfd48c586 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -17,11 +17,11 @@ pipeline {
             }
         }
 
-        stage('Prepare Environment') {
+        stage('Build JAR') {
             steps {
                 script {
-                    sh "pwd" // Prints the current working directory
-                    sh "ls -alh" // Lists all files in the current directory
+                    echo "Building JAR..."
+                    sh './mvnw clean package -Dmaven.test.skip=true'
                 }
             }
         }
@@ -30,8 +30,7 @@ pipeline {
             steps {
                 script {
                     echo "Building Docker Image..."
-                    // Correctly escape dollar signs in Groovy string
-                    def dockerImage = docker.build("spring-petclinic", "--no-cache --build-arg FORCE_REBUILD=$(date +%s) .")
+                    def dockerImage = docker.build("spring-petclinic", "--no-cache .")
                     echo "Docker Image built: ${dockerImage.id}"
                     // Store the Docker image ID in the environment if needed across stages
                     env.DOCKER_IMAGE_ID = dockerImage.id
@@ -40,7 +39,6 @@ pipeline {
         }
 
         // Further stages would reference env.DOCKER_IMAGE_ID if needed
-
     }
 
     post {