diff --git a/Jenkinsfile b/Jenkinsfile
index ce3bf22..254425c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,4 +1,23 @@
-#!/usr/bin/env groovy​
+#!groovy
+
+/*
+ * This work is protected under copyright law in the Kingdom of
+ * The Netherlands. The rules of the Berne Convention for the
+ * Protection of Literary and Artistic Works apply.
+ * Digital Me B.V. is the copyright owner.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 // Load Jenkins shared libraries common to all projects
 def libCmn = [
@@ -17,14 +36,14 @@
 )
 
 // Initialize configuration
-def config = initConfig('dummy-jenkins-pl')
+lazyConfig('dummy-jenkins-pl')
 
 lazyStage {
     name = 'validate'
     tasks = [
     	[ exec: { echo "This is my first task" }, ],
     	[ exec: { echo "This is my second task" }, on: '*' ],
-    	[ exec: "This is my third task", on: [ 'ubuntu-16', 'centos-7', ] ],
-    	[ exec: [ "This and", "that are my last tasks"] ],
+    	[ exec: "third.sh", on: [ 'ubuntu-16', 'centos-7', ] ],
+    	[ exec: [ "fourth-a.sh", "fourth-b.sh"] ],
     ] 
 }