*
     * @param form the create form
     * @param username the current username
     * @param currentTime the current time
     * @return optional file configuration entity
     */
    public static OptionalEntity<FileConfig> getEntity(final CreateForm form, final String username, final long currentTime) {
        switch (form.crudMode) {
        case CrudMode.CREATE:

                logger.debug("principal={}", principal);
            }

            final String[] username = principal.getName().split("@", 2);
            if (logger.isDebugEnabled()) {
                logger.debug("username: {}", Arrays.toString(username));
            }
            return new SpnegoCredential(username[0]);
        }).orElseGet(() -> null);

    }

    /**

            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;

/**
 * The login form.
 */
public class LoginForm {

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

    /** The username. */
    @NotBlank
    public String username;

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

    /** The confirm password. */
    public String confirmPassword;

    /**

Bu <abbr title="Spesifikasyon: Specification">spesifikasyon</abbr> form alanlarını adlandırırken isimlerinin birebir `username` ve `password` olmasını ve JSON verisi yerine form verisi olarak gönderilmesini gerektirir.

     | a unique name within the system (referred to by the 'id' attribute below).
     |
     | NOTE: You should either specify username/password OR privateKey/passphrase, since these pairings are
     |       used together.
     |
    <server>
      <id>deploymentRepo</id>
      <username>repouser</username>
      <password>repopwd</password>
    </server>
    -->

    <!-- Another sample, using keys to authenticate.

```

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"],

```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"],

to take advantage of sweet Kotlin features.

#### Credentials.basic()

The username and password parameters to `Credentials.basic()` are now non-null strings. In OkHttp
3.x, null would yield a username or password of "null".

#### HttpUrl.queryParameterValues()

The return type of `HttpUrl.queryParameterValues()` is `List<String?>`. Lists that may contain null

    /** The protocol scheme for file access (maximum 10 characters). */
    @Size(max = 10)
    public String protocolScheme;

    /** The username for file authentication (required, maximum 100 characters). */
    @Required
    @Size(max = 100)
    public String username;

    /** The password for file authentication (maximum 100 characters). */
    @Size(max = 100)
    public String password;