### Question:
XsuaaTokenFlows implements Serializable { public PasswordTokenFlow passwordTokenFlow() { return new PasswordTokenFlow(oAuth2TokenService, endpointsProvider, clientCredentials); } XsuaaTokenFlows(OAuth2TokenService oAuth2TokenService,
			OAuth2ServiceEndpointsProvider endpointsProvider, ClientCredentials clientCredentials); UserTokenFlow userTokenFlow(); ClientCredentialsTokenFlow clientCredentialsTokenFlow(); RefreshTokenFlow refreshTokenFlow(); PasswordTokenFlow passwordTokenFlow();  }### Answer:
@Test public void startPasswordTokenFlow() { PasswordTokenFlow flow = cut.passwordTokenFlow(); assertNotNull("PasswordTokenFlow must not be null.", flow); }