Update Jenkinsfile

Jenkinsfile

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+pipeline {
+  agent any
+  stages {
+    stage('Echo Version') {
+      steps {
+        sh 'echo Print Maven Version'
+        sh 'mvn -version '
+      }
+    }
+
+    stage('Build') {
+      steps {
+        sh 'mvn clean package -DskipTests=true'
+        archiveArtifacts 'target/hello-demo-*.jar'
+      }
+    }
+
+    stage('Unit Test') {
+      steps {
+        script {
+          sh "mvn test"
+        }
+
+        junit(testResults: 'target/surefire-reports/TEST-*.xml', keepProperties: true, keepTestNames: true)
+      }
+    }
+
+  }
+  tools {
+    maven 'M398'
+  }
+}