gistfile1.java

import javax.validation.constraints.Max;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Past;
import javax.validation.constraints.Pattern;
import javax.validation.constraints.Size;

@Config @NotNull @Size(min=1, max=5)
List<Person> persons;

@Config @NotNull @Size(min=8, max=25)
String password;

@Config @Max(200, message="Area too large")
Integer area() { return length * width; }

@Config @Past
Date time;

@Config @Pattern(regexp="^[\\w\\-]([\\.\\w])+[\\w]+@([\\w\\-]+\\.)+[a-zA-Z]{2,4}$" , message="Bad email")
String email;