@Deployment
public static Archive<?> deployment() {
	return ShrinkWrap.create(JavaArchive.class)
               .addClasses(MyBean2.class, MyParameter.class)
			.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
}git clone git://github.com/javaee-samples/javaee7-samples.git
cd javaee7-samples/validation/methods/mvn testmvn test -Dtest=ConstructorParametersConstraintsTestmvn test -Dtest=ConstructorParametersInjectionTestmvn test -Dtest=MethodParametersConstraintsTest@Deployment
public static Archive<?> deployment() {
	return ShrinkWrap.create(JavaArchive.class)
               .addClasses(MyBean2.class, MyParameter.class)
			.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
}@Test
public void constructorViolationsWhenNullParameters() throws NoSuchMethodException, SecurityException {
       final MyParameter parameter = new MyParameter();
	ExecutableValidator methodValidator = validator.forExecutables();
	Constructor<MyBean2> constructor = MyBean2.class
			.getConstructor(parameter.getClass());
	Set<ConstraintViolation<MyBean2>> constraints = methodValidator
			.validateConstructorParameters(constructor, new Object[] {parameter});
	ConstraintViolation<MyBean2> violation = constraints.iterator().next();
	assertThat(constraints.size(), equalTo(1));
	assertThat(violation.getMessageTemplate(), equalTo("{javax.validation.constraints.NotNull.message}"));
	assertThat(violation.getPropertyPath().toString(), equalTo("MyBean2.arg0.value"));
}@Test
public void constructorViolationsWhenNotNullParameters() throws NoSuchMethodException, SecurityException {
	final MyParameter parameter = new MyParameter();
       parameter.setValue("foo");
       ExecutableValidator methodValidator = validator.forExecutables();
	Constructor<MyBean2> constructor = MyBean2.class
			.getConstructor(parameter.getClass());
	Set<ConstraintViolation<MyBean2>> constraints = methodValidator
			.validateConstructorParameters(constructor, new Object[] {parameter});
	assertThat(constraints.isEmpty(), equalTo(true));
}@Deployment
public static Archive<?> deployment() {
	return ShrinkWrap.create(JavaArchive.class)
               .addClasses(MyBean2.class, MyParameter.class)
			.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
}@Test
public void constructorViolationsWhenNullParameters() {
       thrown.expect(ConstraintViolationException.class);
       thrown.expectMessage("javax.validation.constraints.NotNull");
       thrown.expectMessage("MyBean2.arg0.value");
	bean.getValue();
}@Deployment
public static Archive<?> deployment() {
	return ShrinkWrap.create(JavaArchive.class).addClasses(MyBean.class)
			.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
}@Test
public void methodSizeTooLong() {
	thrown.expect(ConstraintViolationException.class);
	thrown.expectMessage("javax.validation.constraints.Size");
	thrown.expectMessage("org.javaee7.validation.methods.MyBean.sayHello");
	bean.sayHello("Duke");
}@Test
public void methodSizeOk() {
	bean.sayHello("Duk");
}@Test
public void showDateFromPast() {
	thrown.expect(ConstraintViolationException.class);
	thrown.expectMessage("javax.validation.constraints.Future");
	thrown.expectMessage("org.javaee7.validation.methods.MyBean.showDate");
	bean.showDate(false);
}@Test
public void showDateFromFuture() {
	bean.showDate(true);
}@Test
public void multipleParametersWithEmptyList() {
	thrown.expect(ConstraintViolationException.class);
	thrown.expectMessage("javax.validation.constraints.Size");
	thrown.expectMessage("showList.arg0");
	bean.showList(new ArrayList<String>(), "foo");
}@Test
public void multipleParametersNullSecondParameter() {
	thrown.expect(ConstraintViolationException.class);
	thrown.expectMessage("javax.validation.constraints.NotNull");
	thrown.expectMessage("showList.arg1");
	List<String> list = new ArrayList<>();
	list.add("bar");
	bean.showList(list, null);
}@Test
public void multipleParametersWithCorrectValues() {
	List<String> list = new ArrayList<>();
	list.add("bar");
	list.add("woof");
	String string = bean.showList(list, "foo");
	assertThat(string, is(equalTo("foobar foowoof ")));
}There's a lot more about JavaEE to cover. If you're ready to learn more, check out the other available samples.
git clone git://github.com/javaee-samples/javaee7-samples.git
cd javaee7-samples/validation/methods/Do the changes as you see fit and send a pull request!
Good Luck!