/**
 * Wraps an ordinary {@link URL} as a source.
 *
 */
public class UrlSource implements Source {

    private final URL url;

    private final int hashCode;

    /**
     * Creates a new source backed by the specified URL.
     *
     * @param url The file, must not be {@code null}.
     */
    public UrlSource(URL url) {
        this.url = Objects.requireNonNull(url, "url cannot be null");