MQ plug-in error even when the MQ client OSGI JAR file version 7.5.0 is in place.

11:28:27.789 ERROR [bwThread:In-Memory STWorkProcessor-1] com.tibco.bw.core - TIBCO-BW-CORE-500050: The BW process [put.Process] instance faulted, JobId [bw0a100], ProcessInstanceId [bw0a100], ParentProcessInstanceId [-], Module [fulltest_put:1.0.0.qualifier], Application [fulltest_put.application:1.0].  

   <CausedBy> Activity [Put] fault.  

   <CausedBy> com.tibco.bw.runtime.ActivityFault: TIBCO-BW-CORE-500620: The execute operation for the activity [Put] in process [put.Process] failed with unexpected exception [java.lang.NoClassDefFoundError]-{ActivityName=Put, ProcessName=put.Process, ModuleName=fulltest_put}

   <CausedBy> java.lang.NoClassDefFoundError: com/ibm/mq/headers/pcf/PCFMessageAgent

   <CausedBy> java.lang.ClassNotFoundException: com.ibm.mq.headers.pcf.PCFMessageAgent cannot be found by com.tibco.bw.palette.mq.runtime_8.1.0.001

The cause of the issue is that the version 7.5.0 OSGI JAR file does not have the class com.ibm.mq.headers.pcf.PCFMessageAgent. Fix pack 7.5.0.3 has that class included so installing 7.5.0.3 addresses the issue.