url = "file:/" + encodeUrl("ホーム") + "/user";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:/c:/" + encodeUrl("ホーム") + "/user";
        exp = "localhost";
        assertEquals(exp, transformer.getHostOnFile(url));

        url = "file:////" + encodeUrl("サーバー") + "/home/user";
        exp = "サーバー";

            final URL childUrl =
                    childUrlValue.startsWith("?") ? new URL(url.toExternalForm() + childUrlValue) : new URL(url, childUrlValue);
            final String u = encodeUrl(normalizeUrl(childUrl.toExternalForm()), encoding);
            if (logger.isDebugEnabled()) {
                logger.debug("{} -> {}", attrValue, u);
            }
            if (StringUtil.isNotBlank(u)) {

            u = encodeUrl(normalizeUrl(childUrl.toExternalForm()), encoding);
        } catch (final MalformedURLException e) {
            final int pos = urlValue.indexOf(':');
            if (pos > 0 && pos < 10) {
                u = encodeUrl(normalizeUrl(urlValue), encoding);
            }
        }

        if (u == null) {