case '@':
                buf.append("%40");
                break;
            case ':':
                buf.append("%3a");
                break;
            case '/':
                buf.append("%2f");
                break;
            default:
                buf.append(c);
                break;
            }
        }
        return buf.toString();
    }

    /**

        RequestData data = RequestDataBuilder.newRequestData().post().url("https://api.example.com/users").weight(1.2f).build();

        assertEquals(Method.POST, data.getMethod());
        assertEquals("https://api.example.com/users", data.getUrl());
        assertEquals(1.2f, data.getWeight(), 0.001f);
    }

    public void test_orderIndependence() {
        // Test that order of method calls doesn't matter

      sleepMicros("U", MILLISECONDS.toMicros(millis));
    }

    void sleepMicros(String caption, long micros) {
      instant += MICROSECONDS.toNanos(micros);
      events.add(caption + String.format(Locale.ROOT, "%3.2f", micros / 1000000.0));
    }

    @Override
    protected void sleepMicrosUninterruptibly(long micros) {
      sleepMicros("R", micros);
    }

    String readEventsAndClear() {
      try {

      sleepMicros("U", MILLISECONDS.toMicros(millis));
    }

    void sleepMicros(String caption, long micros) {
      instant += MICROSECONDS.toNanos(micros);
      events.add(caption + String.format(Locale.ROOT, "%3.2f", micros / 1000000.0));
    }

    @Override
    protected void sleepMicrosUninterruptibly(long micros) {
      sleepMicros("R", micros);
    }

    String readEventsAndClear() {
      try {

                    + URLEncoder.encode(getReplyUrl(request), Constants.UTF_8_CHARSET) + "&client_id=" + getClientId()
                    + "&resource=https%3a%2f%2fgraph.microsoft.com" + "&state=" + state + "&nonce=" + nonce;
        }
        if (logger.isDebugEnabled()) {
            logger.debug("redirect to: {} (using {} endpoint)", authUrl, useV2Endpoint ? "v2.0" : "v1.0");