Description: "Enable or disable object compression",
			Type:        "on|off",
			Optional:    true,
			Sensitive:   false,
		},
		config.HelpKV{
			Key:         Extensions,
			Description: `comma separated file extensions` + defaultHelpPostfix(Extensions),
			Optional:    true,
			Type:        "csv",
		},
		config.HelpKV{
			Key:         MimeTypes,

import org.apache.maven.api.cli.InvokerRequest;
import org.apache.maven.api.cli.extensions.CoreExtension;

/**
 * Core extension selector: selects which entries to load from {@link InvokerRequest#coreExtensions()}.
 *
 * @param <C> The context type.
 */
public interface CoreExtensionSelector<C extends LookupContext> {
    /**
     * Selects core extensions to be loaded from list of all sources detected.
     */
    @Nonnull

import org.apache.maven.api.cli.cisupport.CIInfo;
import org.apache.maven.api.cli.extensions.CoreExtension;
import org.apache.maven.api.cli.extensions.InputLocation;
import org.apache.maven.api.cli.extensions.InputSource;
import org.apache.maven.api.services.Interpolator;
import org.apache.maven.cling.internal.extension.io.CoreExtensionsStaxReader;
import org.apache.maven.cling.invoker.cisupport.CIDetectorHelper;

/**
 * Marker interface to indicate services that can be provided by plugins and extensions.
 * <p>
 * This interface serves as the base for all Service Provider Interface (SPI) components in Maven.
 * Classes implementing this interface can be discovered and loaded by Maven through the
 * Java ServiceLoader mechanism, allowing plugins and extensions to contribute functionality
 * to the Maven build process.
 * <p>

          <models>
            <model>src/main/mdo/core-extensions.mdo</model>
          </models>
          <templates>
            <template>model.vm</template>
          </templates>
          <params>
            <param>locationTracking=true</param>
            <param>generateLocationClasses=true</param>
            <param>packageModelV4=org.apache.maven.api.cli.extensions</param>

        val extensions = socket.source.readUtf8LineStrict().trim()
        if (bytesRemainingInChunk < 0L || extensions.isNotEmpty() && !extensions.startsWith(";")) {
          throw ProtocolException(
            "expected chunk size and optional extensions" +
              " but was \"$bytesRemainingInChunk$extensions\"",
          )
        }
      } catch (e: NumberFormatException) {

        }
    }
}

project.plugins.withType<JavaBasePlugin> {
    project.extensions.getByName<SourceSetContainer>("sourceSets").configureEach {
        val isMainSourceSet = (name == "main")

        val extension = this.extensions.create<ErrorProneSourceSetExtension>(
            "errorprone",
            project.objects.property<Boolean>()
        ).apply {

      )

  /**
   * ```
   * Extension ::= SEQUENCE  {
   *   extnID      OBJECT IDENTIFIER,
   *   critical    BOOLEAN DEFAULT FALSE,
   *   extnValue   OCTET STRING
   *     -- contains the DER encoding of an ASN.1 value
   *     -- corresponding to the extension type identified
   *     -- by extnID
   * }
   * ```
   */
  internal val extension: BasicDerAdapter<Extension> =
    Adapters.sequence(

/// tip

This is a low level extension point.

If you only need to declare additional responses, a more convenient way to do it is with [Additional Responses in OpenAPI](additional-responses.md){.internal-link target=_blank}.

///

You can extend the OpenAPI schema for a *path operation* using the parameter `openapi_extra`.

### OpenAPI Extensions { #openapi-extensions }

 * errors while processing the event, it can report these problems via {@link ModelBuildingEvent#getProblems()}.
 * Note: To cope with future extensions to this interface, it is strongly recommended to extend
 * {@link AbstractModelBuildingListener} rather than to directly implement this interface.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead