assertTrue("ACCESS_CONTROL_ALLOW_CREDENTIALS should be final", Modifier.isFinal(credentialsField.getModifiers()));

        Field maxAgeField = CorsHandler.class.getDeclaredField("ACCESS_CONTROL_MAX_AGE");
        assertTrue("ACCESS_CONTROL_MAX_AGE should be final", Modifier.isFinal(maxAgeField.getModifiers()));
    }

    // Helper method to create mock HttpServletRequest
    private HttpServletRequest createMockRequest() {

  public static final String ACCESS_CONTROL_EXPOSE_HEADERS = "Access-Control-Expose-Headers";

  /** The HTTP {@code Access-Control-Max-Age} header field name. */
  public static final String ACCESS_CONTROL_MAX_AGE = "Access-Control-Max-Age";

  /** The HTTP {@code Age} header field name. */
  public static final String AGE = "Age";

  /** The HTTP {@code Allow} header field name. */