ARGS:
broker*              (uri)       MQTT server endpoint e.g. `tcp://localhost:1883`
topic*               (string)    name of the MQTT topic to publish
username             (string)    MQTT username
password             (string)    MQTT password
qos                  (number)    set the quality of service priority, defaults to '0'
keep_alive_interval  (duration)  keep-alive interval for MQTT connections in s,m,h,d

		// More than maxConfigSize bytes were available
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigTooLarge), r.URL)
		return
	}

	password := cred.SecretKey
	configBytes, err := madmin.DecryptData(password, io.LimitReader(r.Body, r.ContentLength))
	if err != nil {
		adminLogIf(ctx, err)
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), r.URL)
		return
	}

                char[] password = (cons == null) ? null : cons.readPassword("Password: ");
                if (password != null) {
                    // Cipher uses Strings
                    passwd = String.copyValueOf(password);

                    // Sun/Oracle advises to empty the char array
                    java.util.Arrays.fill(password, ' ');
                }
            }

		c.Fatalf("user could not create bucket: %v", err)
	}

	// 3.10. Check that user's password can be updated.
	_, newSecretKey := mustGenerateCredentials(c)
	err = s.adm.SetUser(ctx, accessKey, newSecretKey, madmin.AccountEnabled)
	if err != nil {
		c.Fatalf("Unable to update user's secret key: %v", err)
	}
	// 3.10.1 Check that old password no longer works.
	err = client.MakeBucket(ctx, getRandomBucketName(), minio.MakeBucketOptions{})