On 13 Jan 2017, at 18:54, Matt Benson <mbenson@apache.org> wrote:As I warned, however, defining these might become tedious. It might be helpful to define a mechanism (like that supported by Spring) to map annotation elements:@Size@ConstraintsApplyTo(WRAPPED_VALUE)@Constraintpublic @interface WrappedSize {@MapTo(type=Size.class, attribute="min")int min() default 0;@MapTo(type=Size.class, attribute="max")int max() default Integer.MAX_VALUE;String message() default "";Class<?> groups() default {};Class<? extends Payload>[] payload() default {};}@Size(1) @WrappedSize(min=3) StringList nicknames;