This keyword specifies that a method will not be projected to a Java client.
Tip
To see which methods of a class are server-only, use the following utility in the Terminal:
do dumpMethods^%occLGUtil("Sample.Person")
The argument is the fully qualified class name. This utility produces a report that indicates basic information about each method: whether the method is a stub, whether the method is server-only, and (if the method is derived from a property) the property from which it is derived.