this.repositories = repositories;
        this.externalRepositories = Collections.unmodifiableList(new ArrayList<>(repositories));

        this.repositoryIds = new HashSet<>();
    }

    private DefaultModelResolver(DefaultModelResolver original) {
        this.session = original.session;
        this.trace = original.trace;
        this.context = original.context;
        this.resolver = original.resolver;

import org.apache.maven.internal.impl.model.rootlocator.DefaultRootLocator;
import org.apache.maven.internal.impl.resolver.DefaultArtifactDescriptorReader;
import org.apache.maven.internal.impl.resolver.DefaultModelResolver;
import org.apache.maven.internal.impl.resolver.DefaultVersionRangeResolver;
import org.apache.maven.internal.impl.resolver.DefaultVersionResolver;
import org.apache.maven.internal.impl.resolver.MavenArtifactRelocationSource;

            } else if (clazz == Interpolator.class) {
                return (T) new DefaultInterpolator();
                // } else if (clazz == ModelResolver.class) {
                //    return (T) new DefaultModelResolver();
            }
            throw new NoSuchElementException("No service for " + clazz.getName());
        }
    }

                modelRequest.setUserProperties(new Properties());
                modelRequest.setModelCache(modelCacheFactory.createCache(session));
                modelRequest.setModelResolver(new DefaultModelResolver(
                        session,
                        trace.newChild(modelRequest),
                        request.getRequestContext(),
                        artifactResolver,

                new DefaultModelVersionParser(getVersionScheme()),
                List.of(),
                new DefaultModelCacheFactory(),
                new org.apache.maven.internal.impl.resolver.DefaultModelResolver(),
                new DefaultInterpolator());
    }

    private RepositorySystem repositorySystem;

    public final RepositorySystem getRepositorySystem() {
        checkClosed();