public class FindServiceByCategoryQuery
Returns the list of service keys possessing the keyedReferences in the passed category bag.
Output is restricted by list of service keys passed in. If null, all business services are searched.
Output is produced by building the appropriate JPA query based on input and find qualifiers.
"This is a list of category references. The returned serviceList contains serviceInfo structures matching all of
the categories passed (logical AND by default). Specifying the appropriate findQualifiers can override this behavior."