private String version;

        private String extension;

        private String classifier;

        public Artifact(String groupId, String artifactId, String version, String extension, String classifier) {
            this.groupId = groupId;
            this.artifactId = artifactId;
            this.version = version;
            this.extension = extension;
            this.classifier = classifier;
        }

     * @see ArtifactCoordinates#getClassifier()
     */
    @Nonnull
    String getClassifier();

    /**
     * Returns the file extension of the artifact.
     * The dot separator is not included in the returned string.
     *
     * @return the file extension or an empty string if none, never {@code null}
     * @see ArtifactCoordinates#getExtension()
     */
    @Nonnull
    String getExtension();

/// 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

 * information among plugins, is this more like an extension point - do we need a sort of bus for
 * application data - do we need a dictionary for our applications like Apple does. We could easily
 * hook into this and this is the model we need to follow - how many of our REST services do not map
 * directory to a method in the application interface?
 *
 * - research extension points versus plugins
 *

    @JvmStatic
    @JvmName("parse")
    fun String.toMediaTypeOrNull(): MediaType? = commonToMediaTypeOrNull()

    @JvmName("-deprecated_get")
    @Deprecated(
      message = "moved to extension function",
      replaceWith =
        ReplaceWith(
          expression = "mediaType.toMediaType()",
          imports = ["okhttp3.MediaType.Companion.toMediaType"],
        ),

            metadata.setPlugins(new ArrayList<>(recessive.getPlugins()));
        }

        artifacts.clear();
    }

    private String getKey(String classifier, String extension) {
        return classifier + ':' + extension;
    }

    @Override
    public String getGroupId() {
        return metadata.getGroupId();
    }

    @Override
    public String getArtifactId() {

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package gradlebuild.testcleanup.extension

import org.gradle.api.provider.Property


/**
 *  An extension for project build script to configure whether the leftover files should be treated:
 *  report only, or a failure.
 */
interface TestFileCleanUpExtension {

        String classifier = artifact.getClassifier();
        String extension = artifact.getExtension();
        return getArtifactPath(groupId, artifactId, version, classifier, extension);
    }

    private Path getArtifactPath(
            String groupId, String artifactId, String version, String classifier, String extension) {
        Path repo = getProjectLocalRepo();
        return repo.resolve(groupId)

    def void addMixin(String plugin, String mixinClass) {
        mixinClasses.add(new MixinMetaData(plugin, mixinClass))
    }

    def void addExtension(String plugin, String extension, String extensionClass) {
        extensionClasses.add(new ExtensionMetaData(plugin, extension, extensionClass))
    }

			[]byte("10000"),
			[]byte("ad80c730a21e5b8d04586a2213dd63b9a0e99e0e2307b0ade35a65485a288648"),
		},
	}
	// Validate chunk extension removal.
	for i, tt := range tests {
		// Extract chunk size and chunk signature after parsing a standard chunk-extension format.
		hexChunkSize, hexChunkSignature := parseS3ChunkExtension(tt.buf)
		if !bytes.Equal(hexChunkSize, tt.chunkSize) {