Java requireNonNull always returns true when Unit Testing

Im trying to implement requireNonNull check on my object when Unit testing using JUnit, Im expecting an Exception to be throw but never is...

public TheClass(final String name) {
    requireNonNull(!StringUtils.isBlank(name), "name cannot be null/empty");

    this.name = name;
}

//Test

@Test(expected = IllegalArgumentException.class)
public void testInstantiateWithNullName() {
    new TheClass(null);
}

Any Ideas....

Iv also ran the test with 'expected = NullPointerException.class'