final URI childUri = uri.resolve(resolveTarget);
            u = encodeUrl(normalizeUrl(childUri.toString()), encoding);
        } catch (final IllegalArgumentException e) {
            final int pos = urlValue.indexOf(':');
            if (pos > 0 && pos < 10) {
                u = encodeUrl(normalizeUrl(urlValue), encoding);
            }
        }

        if (u == null) {