@Documented @Constraint(validatedBy={}) @Target(value={METHOD,FIELD,ANNOTATION_TYPE,CONSTRUCTOR,PARAMETER,TYPE_USE}) @Retention(value=RUNTIME) @Repeatable(value=Email.List.class) public @interface Email
CharSequence.
 
 null elements are considered valid.
public abstract java.lang.String message
public abstract java.lang.Class<? extends Payload>[] payload
public abstract java.lang.String regexp
public abstract Pattern.Flag[] flags
regexp() in order to specify a regular
 expression option