Java.Lang.Noclassdeffounderror: Javax/Jms/Connection When Starting Workflow Mailer

We got this error while starting Workflow Mailer Service in the logs:

Java.Lang.Noclassdeffounderror: Javax/Jms/Connection 

Metalink Note 342700.1 describes the cause of this problem:

The error occurs because JMS jar files ($IAS_OH/rdbms/jlib/jmscommon.jar and

$IAS_OH/rdbms/jlib/aqapi.jar) cannot be found. Normally these are included in

$JAVA_TOP/appsborg2.zip which is not included in the AF_CLASSPATH.

Ensuring that appsborg2.zip is present in your AF_CLASSPATH resolves this problem