/// 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 }

* cross origin: cross origin (do not translate to "origen cruzado")
* plugin: plugin (do not translate to "complemento" or "extensión")
* plug-in: plug-in (do not translate to "complemento" or "extensión")
* plug-ins: plug-ins (do not translate to "complementos" or "extensiones")
* full stack: full stack (do not translate to "pila completa")
* full-stack: full-stack (do not translate to "de pila completa")

  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.

  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  -->

<extensions>
  <extension>
    <groupId>com.gradle</groupId>
    <artifactId>develocity-maven-extension</artifactId>
    <version>2.3</version>
  </extension>

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>

        extensionMetaData.addMixin('a', 'org.gradle.ExtensionA1')
        extensionMetaData.addMixin('a', 'org.gradle.ExtensionA2')
        extensionMetaData.addMixin('b', 'org.gradle.ExtensionB')
        ClassDoc extensionA1 = classDoc('org.gradle.ExtensionA1')
        ClassDoc extensionA2 = classDoc('org.gradle.ExtensionA2')
        ClassDoc extensionB = classDoc('org.gradle.ExtensionB')

 * 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;