OZG-5907 upload branch jars to nexus

Jenkinsfile

@@ -75,7 +75,7 @@ pipeline {
           steps {
                 script {
                     FAILED_STAGE=env.STAGE_NAME
-                    JAR_TAG = getPomVersion().replace("SNAPSHOT", "${env.BRANCH_NAME}-SNAPSHOT")
+                    JAR_TAG = getPomVersion('pom.xml').replace("SNAPSHOT", "${env.BRANCH_NAME}-SNAPSHOT")
                 }
                 configFileProvider([configFile(fileId: 'maven-settings', variable: 'MAVEN_SETTINGS')]) {
                     sh "mvn -s $MAVEN_SETTINGS versions:set -DnewVersion=${JAR_TAG} -DprocessAllModules=true"
@@ -219,3 +219,8 @@ Boolean matchRegexVersion(List versions, String regex) {
 
     return true
 }
+String getPomVersion(String pomFile){
+    def pom = readMavenPom file: pomFile
+
+    return pom.version
+}
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