Added stages to jenkinsfile

Jenkinsfile

@@ -1,9 +1,23 @@
 pipeline {
     agent any
+	tools {
+        maven 'Maven 3.6.3'
+        jdk 'jdk-13'
+    }
     stages {
         stage('Build') {
             steps {
-                sh './mvnw package' 
+                sh 'mvn clean compile' 
+            }
+        }
+		stage('Test') {
+            steps {
+                sh 'mvn test' 
+            }
+        }
+		stage('Package') {
+            steps {
+                sh 'mvn package' 
             }
         }
     }