CR #420812
Description: When you copy and paste a message definition (.wfim file) from one project to another using the copy/paste functionality in the tooling, the process does not copy the custom class JAR files that the message definition references.
Workaround: After copying and pasting a message definition (.wfim file) from one project to another using the copy/paste functionality in the tooling, you must also manually copy and paste the custom class JAR files into the MessageDesigns\CustomClasses directory of the target project.