Thanks Patrick.

I was using SMALL profile. Changing it to FULL profile worked.

Thanks for your input.

I am trying to retrieve the creator and creation date from a work
item. Although, these parameters are set, I am getting the following
exception upon getCreator() method call,

java.lang.IllegalStateException: Attempting to get
unset feature: Creator

Is there anything I am missing that is necessary to access these
fields. I am able to fetch owner and other attributes from a
workitem.

You have to make sure that the work item is resolved with a profile that
contains the attributes, otherwise the exception you are seeing will be
thrown when accessing the attribute values.

Use e.g.

auditableClient.resolveAuditable(handle, IWorkItem.FULL_PROFILE, monitor)

--
Regards,
Patrick
Jazz Work Item Team