import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;

import static java.util.Objects.requireNonNull;
import static org.apache.maven.internal.impl.CoreUtils.map;

public class DefaultSession extends AbstractSession implements InternalMavenSession {

    private final MavenSession mavenSession;
    private final MavenRepositorySystem mavenRepositorySystem;
    private final RuntimeInformation runtimeInformation;

        DefaultMavenExecutionRequest mer = new DefaultMavenExecutionRequest();
        MavenSession ms = new MavenSession(null, rss, mer, null);
        DefaultSession session =
                new DefaultSession(ms, mock(RepositorySystem.class), Collections.emptyList(), null, null, null);

        assertEquals(
                RootLocator.UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE,

        DefaultMavenExecutionRequest request = new DefaultMavenExecutionRequest();
        MavenSession mavenSession = new MavenSession(repoSession, request, new DefaultMavenExecutionResult());
        DefaultSession session =
                new DefaultSession(mavenSession, null, null, repositorySystem, new DefaultLookup(container), null);
        InternalSession.associate(repoSession, session);
        return repoSession;
    }

                getContainer(), repoSession, new DefaultMavenExecutionRequest(), new DefaultMavenExecutionResult());
        session.setSession(defaultSessionFactory.newSession(session));

        DefaultSession s = new DefaultSession(session, null, null, null, null, null);
        SessionScope scope = container.lookup(SessionScope.class);
        scope.enter();
        scope.seed(Session.class, s);

        DefaultMavenExecutionRequest request = new DefaultMavenExecutionRequest();
        MavenSession mavenSession = new MavenSession(rsession, request, new DefaultMavenExecutionResult());
        DefaultSession session =
                new DefaultSession(mavenSession, null, null, null, new SimpleLookup(getSessionServices()), null);
        InternalSession.associate(rsession, session);

        return rsession;
    }

        MavenSession msession =
                new MavenSession(getContainer(), session, mavenExecutionRequest, new DefaultMavenExecutionResult());
        DefaultSession iSession = new DefaultSession(
                msession, resolverRepositorySystem, null, mavenRepositorySystem, new DefaultLookup(container), null);
        InternalSession.associate(session, iSession);

import org.apache.maven.impl.DefaultRepositoryFactory;
import org.apache.maven.impl.InternalSession;
import org.apache.maven.impl.cache.DefaultRequestCacheFactory;
import org.apache.maven.internal.impl.DefaultSession;
import org.apache.maven.project.DefaultProjectBuildingRequest;
import org.apache.maven.project.ProjectBuilder;
import org.apache.maven.project.ProjectBuildingResult;

        this.lookup = lookup;
        this.runtimeInformation = runtimeInformation;
    }

    public InternalSession newSession(MavenSession mavenSession) {
        InternalSession session = new DefaultSession(
                mavenSession, repositorySystem, null, mavenRepositorySystem, lookup, runtimeInformation);
        InternalSession.associate(mavenSession.getRepositorySession(), session);
        return session;
    }