RTC Server-side Participant for getting info from a parent workitem

I have two different work items that are linked by a Parent/Child relationship.  Our organization wants to have the title of the child WI to be automatically populated with data from both the parent and the child WIs. 

I have created an Advisor plugin to not allow the child to be saved without first establishing the link between the two work items. 

Both the advisor and the participant use the Save Work Item Operation ID: https://jazz.net/wiki/bin/view/Main/CustomPreconditionsTable#operations

I found the following wiki post for an example of creating the server-side participant: https://jazz.net/wiki/bin/view/Main/CustomPreconditionFollowup

I am using the RTC 6.0.3 version of the server-sdk.

My local development server provision status page shows the participant is being loaded. 

I can set a breakpoint in the Advisor class but not the Participant class. 

Also, I was unable to use the code in the wiki post linked above as it was written.  The IAdditionalProcessDataParameter  class does not appear to be in my classpath at compile time. 

Any Ideas of what I might be missing?