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

	password := cred.SecretKey
	kvBytes, 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
	}

     * Default constructor.
     */
    public ProfileForm() {
        // Default constructor
    }

    /** The old password. */
    @NotBlank
    public String oldPassword;

    /** The new password. */
    @NotBlank
    public String newPassword;

    /** The confirm new password. */
    @NotBlank
    public String confirmNewPassword;

    /**
     * Clears security information.
     */

        final Map<String, Object> requestBody = new HashMap<>();
        final String keyProp = NAME_PREFIX + id;
        requestBody.put(KEY_PROPERTY, keyProp);
        requestBody.put("password", "password" + id);
        requestBody.put("confirm_password", "password" + id);
        return requestBody;
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        final Map<String, Object> updateMap = new HashMap<>();

		ACB_SVRTRUST               = 0x00000100, /* 1 = Server trust account */
		ACB_PWNOEXP                = 0x00000200, /* 1 = User password does not expire */
		ACB_AUTOLOCK               = 0x00000400, /* 1 = Account auto locked */
		ACB_ENC_TXT_PWD_ALLOWED    = 0x00000800, /* 1 = Encryped text password is allowed */
		ACB_SMARTCARD_REQUIRED     = 0x00001000, /* 1 = Smart Card required */

        String password = "testpassword";
        String domain = "TESTDOMAIN";
        String username = "testuser";
        String workstation = "TESTWS";
        int flags = NtlmFlags.NTLMSSP_NEGOTIATE_UNICODE | NtlmFlags.NTLMSSP_NEGOTIATE_NTLM;

        // When
        Type3Message type3 = new Type3Message(createMockContext(), type2, null, password, domain, username, workstation, flags);

        // Then

        assertTrue(testLdapManager.changePasswordCalled);
    }

    public void test_changePassword_withNullPassword() {
        // Test password change with null password
        testLdapManager.changePasswordResult = false;
        testFessConfig.ldapAdminSyncPassword = false;

        boolean result = ldapChain.changePassword("testuser", null);

Resultaria em algo equivalente a:

```Python
UserInDB(
    username="john",
    password="secret",
    email="******@****.***",
    full_name=None,
)
```

Ou mais exatamente, usando `user_dict` diretamente, com qualquer conteúdo que ele possa ter no futuro:

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],
    full_name = user_dict["full_name"],
)

```Python
UserInDB(
    username="john",
    password="secret",
    email="******@****.***",
    full_name=None,
)
```

Или, если для большей точности мы напрямую используем `user_dict` с любым потенциальным содержимым, то этот пример будет выглядеть так:

```Python
UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],

                // encrypted
                try {
                    this.password = pwAuth.getAnsiHash(this.ctx, this.server.encryptionKey);
                } catch (final GeneralSecurityException e) {
                    throw new RuntimeCIFSException("Failed to encrypt password", e);
                }
                this.passwordLength = this.password.length;
            } else if (this.ctx.getConfig().isDisablePlainTextPasswords()) {

            throw new IllegalArgumentException("Password hash must be provided, expected length 16 byte");
        }
        this.ntHash = passwordHash;
    }

    /**
     * Create username/password credentials with specified domain
     *
     * @param domain the authentication domain
     * @param username the username
     * @param passwordHashHex
     *            NT password hash, hex encoded
     */