/// tip | Consejo

Este es un punto de extensión de bajo nivel.

Si solo necesitas declarar responses adicionales, una forma más conveniente de hacerlo es con [Responses Adicionales en OpenAPI](additional-responses.md){.internal-link target=_blank}.

///

Puedes extender el esquema de OpenAPI para una *path operation* usando el parámetro `openapi_extra`.

### Extensiones de OpenAPI { #openapi-extensions }

  xml.namespace="http://maven.apache.org/EXTENSIONS/${version}"
  xml.schemaLocation="https://maven.apache.org/xsd/core-extensions-${version}.xsd">

  <id>core-extensions</id>
  <name>CoreExtensions</name>
  <description><![CDATA[
  <p>This is a reference for the Core Extensions descriptor.</p>
  <p>The default location for the Core Extensions descriptor file is <code>${maven.projectBasedir}/.mvn/extensions.xml</code></p>
  ]]></description>

  <id>extension</id>
  <name>ExtensionDescriptor</name>
  <description><![CDATA[
    Extension descriptor, stored in <code>META-INF/maven/extension.xml</code> in an extension's jar artifact to
    precisely control parts of the extension and dependencies to expose in the API class loader.

import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Tests {@code Extension}.
 *
 */
class ExtensionTest {

    @Test
    void testHashCodeNullSafe() {
        new Extension().hashCode();
    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new Extension().equals(null));

        new Extension().equals(new Extension());
    }

    @Test
    void testEqualsIdentity() {

~~ under the License.

 ---
 Maven Core Extensions Reference
 ---
 Hervé Boutemy
 ---
 2016-06-25
 ---

Maven Core Extensions Reference

  Maven core provides default {{{./extension.html}extensions}} as defined in <<</META-INF/maven/extension.xml>>>:

      | provoke linkage errors for wagons contributed by build extensions. We also don't need to exclude the wagons
      | from plugins. Plugins that use wagons directly and declare the corresponding dependency will simply use a
      | wagon from their plugin realm.
     -->
  </exportedArtifacts>
</extension>

 * Sec-WebSocket-Extensions: permessage-deflate; client_max_window_bits=15
 * Sec-WebSocket-Extensions: permessage-deflate; client_no_context_takeover
 * Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits="15"
 * Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15
 * Sec-WebSocket-Extensions: permessage-deflate; server_no_context_takeover
 * Sec-WebSocket-Extensions: permessage-deflate; server_no_context_takeover;

     * extension) or 'plugin' (follows the rules from extensions
     * defined as plugins).
     *
     * @return String
     */
    public String getClassLoadingStrategy() {
        return this.classLoadingStrategy;
    } // -- String getClassLoadingStrategy()

    /**
     * Get the group ID of the extension's artifact.
     *
     * @return String
     */

                    throw new RuntimeException("No targetClass specified for extension provided by plugin '$pluginId'.")
                }
                def extension = extensions[targetClass]
                if (!extension) {
                    extension = new gradlebuild.docs.dsl.docbook.model.ClassExtensionMetaData(targetClass)
                    extensions[targetClass] = extension
                }
                def mixinClass = e.'@mixinClass'

  <description>
    Test that build extensions are properly merged during inheritance.
  </description>

  <build>
    <!-- project extensions should precede inherited extensions -->
    <extensions>
      <extension>
        <groupId>org.apache.maven.its.mng3899</groupId>
        <artifactId>b</artifactId>
        <version>0.1</version>
      </extension>
      <extension>