File pom = getProject("project-basic");
        MavenSession session = createMavenSession(pom);
        Plugin plugin = mojoDescriptorCreator.findPluginForPrefix("clean", session);
        assertNotNull(plugin);
    }

    @Test
    void testSetupMojoExecution() throws Exception {
        File pom = getProject("mojo-configuration");

        MavenSession session = createMavenSession(pom);

     *
     * @param session the Maven session
     * @throws MavenExecutionException in case of issue
     */
    public void afterProjectsRead(MavenSession session) throws MavenExecutionException {
        // do nothing
    }

    /**
     * Invoked after MavenSession instance has been created.
     *
     * This callback is intended to allow extensions to inject execution properties,

                            .build(),
                    null);
        }

        @Override
        protected Session newSession(
                MavenSession mavenSession, List<org.apache.maven.api.RemoteRepository> repositories) {
            return new SimpleSession(mavenSession, getRepositorySystem(), repositories);
        }

        @SuppressWarnings("unchecked")
        @Override

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

import java.util.List;
import java.util.Map;

import org.apache.maven.execution.MavenSession;

/**
 * Public API for a toolchain-aware plugin to get expected toolchain instance.
 *
 * @since 2.0.9
 * @deprecated Use {@link org.apache.maven.api.services.ToolchainManager} instead.
 */

import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.maven.api.Lifecycle;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.LifecycleNotFoundException;
import org.apache.maven.lifecycle.LifecyclePhaseNotFoundException;
import org.apache.maven.plugin.InvalidPluginDescriptorException;

        }

        @Override
        public void afterSessionStart(MavenSession session) {
            session.getUserProperties().setProperty("injected", "bar");
        }
    }

    public static class InjectReactorDependency extends AbstractMavenLifecycleParticipant {
        @Override
        public void afterProjectsRead(MavenSession session) {
            injectReactorDependency(session.getProjects(), "module-a", "module-b");

        MavenSession mavenSession =
                new MavenSession(container, session, mavenExecutionRequest, new DefaultMavenExecutionResult());
        legacySupport.setSession(mavenSession);
        InternalSession iSession = new DefaultSession(
                mavenSession,
                resolverRepositorySystem,
                null,
                null,

    private final TaskSegment taskSegment;

    private final MavenSession session;

    private final List<MavenProject> nonTransitiveUpstreamProjects;

    private final List<MavenProject> transitiveUpstreamProjects;

    public ProjectSegment(MavenProject project, TaskSegment taskSegment, MavenSession copiedSession) {
        this.project = project;
        this.taskSegment = taskSegment;

        when(event.getProject()).thenReturn(project);

        MavenProject rootProject = mock(MavenProject.class);
        when(rootProject.getBasedir()).thenReturn(basedir);
        MavenSession session = mock(MavenSession.class);
        when(session.getTopLevelProject()).thenReturn(rootProject);
        when(session.getTopDirectory()).thenReturn(basedir.toPath());
        when(event.getSession()).thenReturn(session);

     *
     * @param session The currently active session, may be {@code null}.
     */
    void setSession(MavenSession session);

    /**
     * Gets the currently active session.
     *
     * @return The currently active session or {@code null} if none.
     */
    MavenSession getSession();

    /**
     * Gets the currently active repository session.
     *