Marker for AOP proxy interfaces (in particular: introduction interfaces) that explicitly intend to return the raw target object (which would normally get replaced with the proxy object when returned from a method invocation).

Note that this is a marker interface in the style of java.io.Serializable, semantically applying to a declared interface rather than to the full class of a concrete object. In other words, this marker applies to a particular interface only (typically an introduction interface that does not serve as the primary interface of an AOP proxy), and hence does not affect other interfaces that a concrete AOP proxy may implement.