Convenience implementation of {@link ExceptionRecognizer} that loops through a list of{@link #add(ExceptionRecognizer) registered} services.
Note that the framework does allow multiple {@link ExceptionRecognizer service}s to be registered in isis.properties, and each will be consulted in turn. Therefore it is not necessary to use this class to register more than one such service. However, it may be useful to use to treat a group of similar exceptions as a single unit. For example, the JDO object store (in its applib) provides a set of {@link ExceptionRecognizer} torecognize various types of constraint violations. These are grouped together as a single set through the use of this class.