code: public void addAuthInfo(final String scheme, final byte[] auth) {
          retryUntilConnected(new Callable<Object>() {
              @Override
              public Object call() throws Exception {
                  _connection.addAuthInfo(scheme, auth);
                  return null;
              }
          });
      }
docs: Add authentication information to the connection. This will be used to identify the user and check access to
  nodes protected by ACLs
  
  @param scheme
  @param auth