* **`300`** y superiores son para "Redirección". Los responses con estos códigos de estado pueden o no tener un body, excepto `304`, "Not Modified", que no debe tener uno.
* **`400`** y superiores son para responses de "Error del Cliente". Este es el segundo tipo que probablemente más usarías.
    * Un ejemplo es `404`, para un response "Not Found".

/**
 * Utility class for creating extensible enum implementations.
 * This class provides factory methods for creating instances of extensible enums
 * such as Language, PathScope, and ProjectScope.
 *
 * @since 4.0.0
 */
abstract class ExtensibleEnums {

    /**
     * Creates a new Language instance with the specified ID.
     *
     * @param id the identifier for the language
     * @return a new Language instance
     */

 *   <li>Maven 3 compatible behavior for patterns without explicit syntax</li>
 *   <li>Default exclusion patterns for SCM files when requested</li>
 * </ul>
 *
 * @since 4.0.0
 * @see PathMatcher
 */
@Experimental
public interface PathMatcherFactory extends Service {

    /**
     * Creates a path matcher for filtering files based on include and exclude patterns.
     * <p>

다음 인수가 지원됩니다:

* `allowed_hosts` - 호스트 이름으로 허용해야 하는 도메인 이름 목록입니다. 일치하는 하위 도메인에 대해 `*.example.com`과 같은 와일드카드 도메인이 지원됩니다. 모든 호스트 이름을 허용하려면 `allowed_hosts=[“*”]`를 사용하거나 미들웨어를 생략하세요.

수신 요청의 유효성이 올바르게 확인되지 않으면 `400`이라는 응답이 전송됩니다.

## `GZipMiddleware`

`Accept-Encoding` 헤더에 `“gzip”`이 포함된 모든 요청에 대해 GZip 응답을 처리합니다.

미들웨어는 표준 응답과 스트리밍 응답을 모두 처리합니다.

{* ../../docs_src/advanced_middleware/tutorial003.py hl[2,6] *}

* **`300`** e acima são para "Redirecionamento". As respostas com esses códigos de status podem ou não ter um corpo, exceto `304`, "Não modificado", que não deve ter um.
* **`400`** e acima são para respostas de "Erro do cliente". Este é o segundo tipo que você provavelmente mais usaria.
    * Um exemplo é `404`, para uma resposta "Não encontrado".
    * Para erros genéricos do cliente, você pode usar apenas `400`.

import java.util.Map;

import org.apache.maven.api.Service;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * Checksum algorithms service.
 *
 * @since 4.0.0
 */
@Experimental
public interface ChecksumAlgorithmService extends Service {

    /**
     * Returns immutable collection of all supported algorithm names.
     */
    @Nonnull

 * {@link #DEFAULT default}, {@link #CLEAN clean}, and {@link #SITE site}, with the
 * {@code default} lifecycle being the most commonly used for project builds.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface Lifecycle extends ExtensibleEnum {

    // =========================
    // Maven defined lifecycles
    // =========================
    String CLEAN = "clean";

 * abused as a cache (i.e. for storing values that can be re-calculated) to avoid memory exhaustion.
 * <p>
 * <strong>Note:</strong> Actual implementations must be thread-safe.
 *
 * @see Session#getData()
 * @since 4.0.0
 */
@Experimental
@ThreadSafe
@Provider
public interface SessionData {

    /**
     * Associates the specified session data with the given key.
     *

These are any `OPTIONS` request with `Origin` and `Access-Control-Request-Method` headers.

In this case the middleware will intercept the incoming request and respond with appropriate CORS headers, and either a `200` or `400` response for informational purposes.

### Simple requests { #simple-requests }

import org.apache.maven.api.annotations.NotThreadSafe;

import static java.util.Objects.requireNonNull;

/**
 * A request for creating a {@link ArtifactCoordinates} object.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface ArtifactCoordinatesFactoryRequest extends Request<Session> {

    String getGroupId();

    String getArtifactId();

    String getVersion();