char sp;
                if (url.indexOf('?') == -1) {
                    sp = '?';
                } else {
                    sp = '&';
                }
                final StringBuilder urlBuf = new StringBuilder(100);
                for (final String param : paramList) {
                    urlBuf.append(sp).append(param);
                    if (sp == '?') {
                        sp = '&';