Merge branch 'master' into 'main'

pipeline test

See merge request !7

Jenkinsfile

+pipeline {
+    agent any
+    stages {
+        stage('Prepare'){
+            agent any
+            steps {
+                checkout scm
+            }
+        }post {
+            success{
+                echo 'prepare success'
+            }
+            always{
+                echo 'done prepare'
+            }
+            cleanup{
+                echo 'after all other post conditions'
+            }
+        }
+    }
+    stage('maven build'){
+        steps {
+            sh  'mvn package'
+        }
+        post {
+            success{
+                echo 'maven build success'
+            }
+        }
+        failure {
+            echo 'maven build failed'
+        }
+    }
+}
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