"Expected 'UnresolvableModelException' not thrown.");
        assertNotNull(e.getMessage());
        assertThat(e.getMessage(), containsString("Could not find artifact org.apache:apache:pom:0 in central"));
    }

    @Test
    void testResolveParentThrowsUnresolvableModelExceptionWhenNoMatchingVersionFound() throws Exception {
        final Parent parent = new Parent();
        parent.setGroupId("org.apache");

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

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

/**
 * This interface forms the contract required for <code>Mojos</code> to interact with the <code>Maven</code>
 * infrastructure.<br>
 * It features an <code>execute()</code> method, which triggers the Mojo's build-process behavior, and can throw

        Session s = ApiRunner.createSession();
        LocalRepository localRepository = s.createLocalRepository(localRepoPath);
        RemoteRepository remoteRepository = s.createRemoteRepository(
                RemoteRepository.CENTRAL_ID, remoteRepoPath.toUri().toString());
        session = s.withLocalRepository(localRepository).withRemoteRepositories(List.of(remoteRepository));
    }

    @Test

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

import java.util.Map;

import org.apache.maven.toolchain.model.ToolchainModel;

/**
 * a private contract between the toolchains plugin and the components.
 */
public interface ToolchainPrivate extends Toolchain {

    /**
     * Let the toolchain decide if it matches requirements defined

        DefaultSession session = new DefaultSession(
                rsession,
                system,
                List.of(lookup.lookup(RepositoryFactory.class)
                        .createRemote("central", "https://repo.maven.apache.org/maven2")),
                null,
                lookup);

        Settings settings = session.getService(SettingsBuilder.class)
                .build(

        // so add central to the computed settings for backward compatibility.
        if (effective.getRepositories().isEmpty()
                && effective.getPluginRepositories().isEmpty()) {
            Repository central = Repository.newBuilder()
                    .id("central")
                    .name("Central Repository")
                    .url("https://repo.maven.apache.org/maven2")

 *
 * @since 4.0.0
 * @see RemoteRepository
 * @see LocalRepository
 */
@Experimental
@Immutable
public interface Repository {

    /**
     * The reserved id for Maven Central
     */
    String CENTRAL_ID = "central";

    /**
     * Gets the identifier of this repository.
     *
     * @return the (case-sensitive) identifier, never {@code null}
     */
    @Nonnull
    String getId();

                    .relocation(model.getDistributionManagement().getRelocation())
                    .build());
        }
        // only keep repositories other than 'central'
        builder.pluginRepositories(pruneRepositories(model.getPluginRepositories()));
        builder.repositories(pruneRepositories(model.getRepositories()));
        return builder;
    }

            project.setOriginalModel(model);
            project.setRemoteArtifactRepositories(Collections.singletonList(new MavenArtifactRepository(
                    "central", "http://repo.maven.apache.org/", new DefaultRepositoryLayout(), null, null)));
        }
        Model model = builder.build(session, project, file);

        assertNotNull(model);
    }

    @Test

 * graph construction.
 * <p>
 * Extend this class {@code createXXX()} methods and override to customize, if needed. The contract of this class makes
 * sure that these (potentially overridden) methods are invoked only once, and instance created by those methods are
 * memorized and kept as long as supplier instance is kept open.
 * <p>