class ConstantPool {

    public T valueOf(Class<?> firstNameComponent, String secondNameComponent) {
        if (firstNameComponent == null) {
            throw new NullPointerException("firstNameComponent");
        }
        if (secondNameComponent == null) {
            throw new NullPointerException("secondNameComponent");
        }

        return valueOf(firstNameComponent.getName() + '#' + secondNameComponent);
    }

}