IDM 14.5 Workflow email not getting triggered

Products

• CA Identity Manager
• CA Identity Suite

Issue/Introduction

The workflow email was not triggered and throws the following error

java.lang.NoClassDefFoundError: com/workpoint/server/ServerProperties
        at com.workpoint.queue.work.MailQWorker.B(Unknown Source)
        at com.workpoint.queue.work.MailQWorker.A(Unknown Source)
        at com.workpoint.queue.work.MailQWorker.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

Environment

Identity Manager 14.5 (standalone) 

Cause

Missing libraries in the classpath.

Resolution

1. Open /iam_im.ear/workflow.rar/META-INF/MANIFEST.MF

2. Add the following two lines at the end of the file:
             wpServer.war/WEB-INF/lib/wpServer.jar
             wpServer.war/WEB-INF/lib/groovy-3.0.8.jar

3. Make sure both jar files exist in the lib folder

4. Save the change and restart Wildfly