//add exception mappings from annotation
if (annotation != null && annotation.exceptionMappings() != null)
actionConfig.addExceptionMappings(buildExceptionMappings(annotation.exceptionMappings(), actionName));
//add exception mapping from class
ExceptionMappings exceptionMappings = actionClass.getAnnotation(ExceptionMappings.class);
if (exceptionMappings != null)
actionConfig.addExceptionMappings(buildExceptionMappings(exceptionMappings.value(), actionName));
//add
pkgCfg.addActionConfig(actionName, actionConfig.build());
//check if an action with the same name exists on that package (from XML config probably)