Demonstrates how to use lombok-pg 0.11.3's @Validate and @Validate.With annotations

ValidateTest.java

import lombok.Validate;

public class ValidateTest {
  public static void main(final String... args) {
		foo(0); //-> Passes validation (0 is the most-even number)
		foo(1); //-> IllegalArgumentException: The object 'i' (argument #1) is invalid
	}

	@Validate //-> Required for @Validate.With(*) to be detected
	private static void foo(@Validate.With("isEven") final Integer i) {
		// @Validate.With(*) will only work on objects (not primitive types) and
		// will only work with concrete, non-empty methods. It will, however, work
		// with a method that does nothing but return void :)
                //
                // It also will not let you use validation methods from other classes,
                // which is lame ...
		return;
	}

	private static boolean isEven(final Integer i) {
		return null != i && (i & 1) == 0;
	}
}