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) {

 * under the License.
 */
package org.apache.maven.cling.extensions;

import org.apache.maven.api.cli.extensions.CoreExtension;
import org.apache.maven.extension.internal.CoreExtensionEntry;

/**
 * Represents a core extension that has been selected to be loaded.
 * @param coreExtension The extension configuration entry with location tracking.
 * @param entry The loaded entry with descriptor.
 */

     * Gets the extractor for the specified file extension.
     *
     * @param ext the file extension
     * @return the extractor for the extension, or null if not found
     */
    private Extractor getExtractor(final String ext) {
        return extractorMap.get(ext);
    }

    /**
     * Gets the output extension for the specified input extension.
     *
     * @param extension the input file extension

/**
 * 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>

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

					</execution>
				</executions>
			</plugin>
			<plugin>
				<groupId>org.sonatype.central</groupId>
				<artifactId>central-publishing-maven-plugin</artifactId>
				<version>0.7.0</version>
				<extensions>true</extensions>
				<configuration>
					<publishingServerId>central</publishingServerId>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<dependencies>
		<dependency>

            if ("extension".equals(parser.getName())) {
                java.util.List<CoreExtension> extensions = coreExtensions.getExtensions();
                if (extensions == null) {
                    extensions = new java.util.ArrayList<CoreExtension>();
                }
                extensions.add(parseCoreExtension(parser, strict));

    newWebSocket(
      Request
        .Builder()
        .url(webServer.url("/"))
        .header("Sec-WebSocket-Extensions", "permessage-deflate")
        .build(),
    )
    clientListener.assertFailure(
      ProtocolException::class.java,
      "Request header not permitted: 'Sec-WebSocket-Extensions'",
    )
  }

  @Test
  fun webSocketAndApplicationInterceptors() {
    val interceptedCount = AtomicInteger()

/// 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 }

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;