<T> T computeIfAbsent(@Nonnull Key<T> key, @Nonnull Supplier<T> supplier);

    /**
     * Create a key using the given class as an identifier and as the type of the object.
     */
    static <T> Key<T> key(Class<T> clazz) {
        return new Key<>(clazz, clazz);
    }

    /**
     * Create a key using the given class and id.
     */
    static <T> Key<T> key(Class<T> clazz, Object id) {

     */
    public static class ObjectBasedValueSource extends AbstractValueSource {

        private final Object root;

        /**
         * Construct a new value source, using the supplied object as the root from
         * which to start, and using expressions split at the dot ('.') to navigate
         * the object graph beneath this root.
         * @param root the root of the graph.
         */

/**
 * Maven relocation source.
 * Note: implementations of this component should avoid the "default" name (has special meaning in Eclipse Sisu) and
 * explicitly order implementations using Sisu priorities.
 *
 * @since 4.0.0
 */
public interface MavenArtifactRelocationSource {
    /**
     * Returns {@link Artifact} instance where to relocate to, or {@code null}.
     *

        if (Files.isDirectory(path)) {
            /*
             * Package hierarchy: only one module with descriptor at the root.
             * This is the layout of output directories in projects using the
             * classical (Java 8 and before) way to organize source files.
             */
            Path file = path.resolve(MODULE_INFO);
            if (Files.isRegularFile(file)) {

     */
    public Set<String> getExportedPackages() {
        return packages;
    }

    /**
     * The key that can must used to identify the configuration using the
     * {@link javax.inject.Named} annotation.
     */
    public String getKey() {
        return key;
    }

    /**
     * Returns the configuration for this extension.
     */

      <description>
        <![CDATA[
      Flags the system as offline, to prevent accessing the network to resolve artifacts or execute plugins.

      NOTE: It's also possible to switch to offline mode on a per-build basis, using the '-o' command-line option.
    ]]></description>
    </expression>
    <expression>
      <syntax>settings.interactiveMode</syntax>
      <configuration>
        <![CDATA[
    <interactiveMode>true</interactiveMode>

* Implications for Resolution

** Dependency Resolution

  This one is obvious...we only have access to the repositories using
  the file:// protocol and living on a truly local filesystem when
  offline.

** Plugin Resolution

  This is similar to dependency resolution. Plugin repositories not
  using file:// or not residing on a local (not shared) filesystem will
  be unavailable.


* Implications for Mojo Execution

     * <ul>
     * <li>{@code *} = everything,</li>
     * <li>{@code external:*} = everything not on the localhost and not file based,</li>
     * <li>{@code external:http:*} = any repository not on the localhost using HTTP,</li>
     * <li>{@code repo,repo1} = {@code repo} or {@code repo1},</li>
     * <li>{@code *,!repo1} = everything except {@code repo1}.</li>
     * </ul>
     *
     * @param originalRepository to compare for a match.

 * under the License.
 */
package org.apache.maven.api;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * A version usually parsed using the {@link org.apache.maven.api.services.VersionParser} service.
 *
 * @since 4.0.0
 * @see org.apache.maven.api.services.VersionParser#parseVersion(String)
 * @see org.apache.maven.api.Session#parseVersion(String)
 */

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.plugin.descriptor.lifecycle.Lifecycle;

/**
 * Interface that can be provided by the plugin to wire in custom lifecycles
 * leveraged using the {@link org.apache.maven.api.plugin.annotations.Execute}
 * annotation.  If a {@code META-INF/maven/lifecycle.xml} file is packaged
 * in the plugin, Maven will provide a default implementation that will parse