// Superuser "client" should be able to get a delegation token
  // for user "client2" when authenticated using Kerberos
  // The request shouldn't work when authenticated using DelegationTokens
// Superuser "client" should be able to get a delegation token
  // for user "client2" when authenticated using Kerberos
  // The request shouldn't work when authenticated using DelegationTokens | TestRMWebServicesDelegationTokenAuthentication.java