assertTrue(testLdapManager.applyCalled);
    }

    // Helper method to create test user
    private User createTestUser(String username, String password) {
        User user = new User();
        user.setName(username);
        user.setPassword(password);
        user.setRoles(new String[] { "role1", "role2" });
        user.setGroups(new String[] { "group1", "group2" });
        return user;

     *            JAAS configuration name
     * @param domain the domain for authentication
     * @param username the username for authentication
     * @param password the password for authentication
     */
    public JAASAuthenticator(String serviceName, String domain, String username, String password) {
        super(null, domain, username, password);
        this.serviceName = serviceName;
    }

    /**

            assertEquals("user" + i, chains.get(i).lastLoadedUser.getName());
        }
    }

    // Helper method to create test user
    private User createTestUser(String username) {
        User user = new User();
        user.setName(username);
        return user;
    }

    // Test implementation of AuthenticationChain
    private static class TestAuthenticationChain implements AuthenticationChain {
        int id;

        assertEquals(5, chain.deleteCalls.size());
    }

    // Helper method to create test user
    private User createTestUser(String username, String displayName) {
        User user = new User();
        user.setName(username);
        user.setDisplayName(displayName);
        return user;
    }

    // Test implementation of AuthenticationChain for testing

        FtpServer server = null;
        try {
            String username = "testuser";
            String password = "testpass";
            server = startFtpServer(FTP_PORT, username, password);
            Map<String, Object> params = new HashMap<String, Object>();
            FtpAuthentication auth = new FtpAuthentication();
            auth.setUsername(username);
            auth.setPassword(password);

	g := errgroup.WithNErrs(len(users))

	for index := range users {
		g.Go(func() error {
			userName := path.Dir(users[index])
			user, err := iamOS.loadUserIdentity(ctx, userName, userType)
			if err != nil && !errors.Is(err, errNoSuchUser) {
				return fmt.Errorf("unable to load the user `%s`: %w", userName, err)
			}
			userIdentities[index] = user
			return nil
		}, index)
	}

    }

    /**
     * Record successful authentication
     *
     * @param username the username
     * @param sourceIp the source IP
     */
    public void recordSuccess(String username, String sourceIp) {
        if (username != null) {
            AccountAttempts account = accountAttempts.get(username);
            if (account != null) {
                account.reset();
            }
        }

        this.port = port;
    }

    /**
     * Returns the username.
     * @return The username.
     */
    public String getUsername() {
        return username;
    }

    /**
     * Sets the username.
     * @param username The username.
     */
    public void setUsername(final String username) {
        this.username = username;
    }

    /**
     * Returns the password.

                username = username.substring(0, ci);
            } else {
                ci = username.indexOf('\\');
                if (ci > 0) {
                    domain = username.substring(0, ci);
                    username = username.substring(ci + 1);
                }
            }
        }

        this.domain = domain != null ? domain : "";
        this.username = username != null ? username : "";

        transformer1.setName("instance1");
        transformer2.setName("instance2");
        transformer3.setName("instance3");

        assertEquals("instance1", transformer1.getName());
        assertEquals("instance2", transformer2.getName());
        assertEquals("instance3", transformer3.getName());

        // Change one instance's name
        transformer2.setName("changed2");

        // Others should remain unchanged