fix jenkinsfile

Jenkinsfile

@@ -9,19 +9,19 @@ pipeline {
         stage('Set build number into version') {
             steps {
                 script {
-                    def baseVersion = sh(
-                        script: 'mvn -q help:evaluate -Dexpression=project.version -DforceStdout',
-                        returnStdout: true
-                    ).trim()
+                    def pom = readFile('pom.xml')
+                    def matcher = pom =~ /<artifactId>pf-sdn<\/artifactId>\s*<version>([0-9.]+)<\/version>/
+                    if (!matcher.find()) {
+                        error "Project version not found in pom.xml"
+                    }
 
-                    def parts = baseVersion.tokenize('.')
-                    parts[parts.size() - 1] = "${env.BUILD_NUMBER}"
+                    def parts = matcher.group(1).tokenize('.')
+                    parts[parts.size() - 1] = env.BUILD_NUMBER
                     env.VERSION = parts.join('.')
 
+                    echo "New project version: ${env.VERSION}"
                     sh "mvn -B versions:set -DnewVersion=${env.VERSION}"
                     sh 'mvn -B versions:commit'
-
-                    echo "Build version: ${env.VERSION}"
                 }
             }
         }