Annotation that indicates a method's return value should be converted to
a {@link Message} if necessary and sent to the specified destination.
<p>In a typical request/reply scenario, the incoming {@link Message} may
convey the destination to use for the reply. In that case, that destination
should take precedence.
<p>The annotation may also be placed at class-level if the provider supports
it to indicate that all related methods should use this destination if none
is specified otherwise.
Annotation that indicates a method's return value should be converted to a {@link Message} if necessary and sent to the specified destination.
<p>In a typical request/reply scenario, the incoming {@link Message} may convey the destination to use for the reply. In that case, that destination should take precedence.
<p>The annotation may also be placed at class-level if the provider supports it to indicate that all related methods should use this destination if none is specified otherwise.
@author Rossen Stoyanchev @author Stephane Nicoll