public String authorizationId() {
        return authorizationId;
    }
@Test
    public void testAuthorizationId() throws Exception {
        String message = "n,a=myuser,\u0001auth=Bearer 345\u0001\u0001";
        OAuthBearerClientInitialResponse response = new OAuthBearerClientInitialResponse(message.getBytes(StandardCharsets.UTF_8));
        assertEquals("345", response.tokenValue());
        assertEquals("myuser", response.authorizationId());
    }