}

            @Nonnull
            @Override
            public Optional<Source> getGlobalToolchainsSource() {
                return Optional.ofNullable(globalToolchainsSource);
            }

            @Nonnull
            @Override
            public Optional<Source> getUserToolchainsSource() {
                return Optional.ofNullable(userToolchainsSource);
            }
        }
    }

    BeanConfigurationRequest setClassLoader(ClassLoader classLoader);

    /**
     * Gets the optional preprocessor for configuration values.
     *
     * @return The preprocessor for configuration values or {@code null} if none.
     */
    BeanConfigurationValuePreprocessor getValuePreprocessor();

    /**
     * Sets the optional preprocessor for configuration values.
     *

                    .collect(Collectors.toMap(t -> t.id(), t -> t));
        }

        @Override
        public Optional<T> lookup(String id) {
            return Optional.ofNullable(values.get(id));
        }
    }

        return delegate.getExecutionId();
    }

    @Override
    public String getGoal() {
        return delegate.getGoal();
    }

    @Override
    public Optional<XmlNode> getConfiguration() {
        return Optional.of(delegate.getConfiguration()).map(Xpp3Dom::getDom);
    }

    @Override
    public String toString() {
        return delegate.toString();
    }

    @Override
    public Path getRootDirectory() {
        return project.getRootDirectory();
    }

    @Override
    public Optional<Project> getParent() {
        MavenProject parent = project.getParent();
        return parent != null ? Optional.of(session.getProject(parent)) : Optional.empty();
    }

    @Nonnull
    private DependencyCoordinate toDependency(org.apache.maven.api.model.Dependency dependency) {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.internal.impl;

import java.util.List;
import java.util.Optional;

import org.apache.maven.api.Artifact;
import org.apache.maven.api.Dependency;
import org.apache.maven.api.Node;
import org.apache.maven.api.RemoteRepository;
import org.apache.maven.api.annotations.Nonnull;

            throws InvalidVersionSpecificationException {
        VersionRange versionRange = VersionRange.createFromVersionSpec(version);

        return artifactFactory.createDependencyArtifact(
                GROUP_ID, id, versionRange, "jar", null, scope, inheritedScope, optional);
    }

                    packages.addAll(descriptor.getExportedPackages());
                }
            }
        } catch (IOException ignored) {
            // exports descriptors are entirely optional
        }

        return new CoreExtensionEntry(loader, artifacts, packages, null, null);
    }

    public static CoreExtensionEntry discoverFrom(

                throws InvalidVersionSpecificationException {
            ArtifactSpec dep = createArtifactSpec(id, version, scope, artifact.getScope(), optional);
            return addDependency(dep);
        }

        public ArtifactSpec addDependency(String id, String version, boolean optional)
                throws InvalidVersionSpecificationException {

            @Override
            public <T> Optional<T> lookupOptional(Class<T> type) {
                try {
                    return Optional.of(injector.getInstance(type));
                } catch (DIException e) {
                    return Optional.empty();
                }
            }

            @Override
            public <T> Optional<T> lookupOptional(Class<T> type, String name) {