: null,
                lookup);
        this.mavenSession = session;
        this.mavenRepositorySystem = mavenRepositorySystem;
        this.runtimeInformation = runtimeInformation;
    }

    @Override
    public MavenSession getMavenSession() {
        if (mavenSession == null) {
            throw new IllegalArgumentException("Found null mavenSession on session " + this);
        }
        return mavenSession;

     * @param context the Maven session, must not be {@code null}
     * @since 3.0 (addition of the <code>MavenSession</code> parameter)
     */
    ToolchainPrivate[] getToolchainsForType(String type, MavenSession context) throws MisconfiguredToolchainException;

    /**
     * Stores the toolchain into build context for later use by toolchain-aware plugins.
     *
     * @param toolchain the toolchain to store, must not be {@code null}

                    PluginVersionResolutionException;

    void execute(MavenSession session);

    // used by the site plugin 3.x
    void calculateForkedExecutions(MojoExecution mojoExecution, MavenSession session)
            throws MojoNotFoundException, PluginNotFoundException, PluginResolutionException,

import org.apache.maven.execution.ExecutionEvent;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;

/**
 * Holds data relevant for an execution event.
 *
 */
class DefaultExecutionEvent implements ExecutionEvent {

    private final Type type;

    private final MavenSession session;

    private final MojoExecution mojoExecution;

public class EmptyLifecycleExecutor implements LifecycleExecutor {

    @Override
    public MavenExecutionPlan calculateExecutionPlan(MavenSession session, String... tasks) {
        return new MavenExecutionPlan(null, new DefaultLifecycles());
    }

    @Override
    public MavenExecutionPlan calculateExecutionPlan(MavenSession session, boolean setup, String... tasks) {
        return new MavenExecutionPlan(null, new DefaultLifecycles());
    }

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

import java.util.List;
import java.util.Set;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.LifecycleNotFoundException;
import org.apache.maven.lifecycle.LifecyclePhaseNotFoundException;
import org.apache.maven.lifecycle.MavenExecutionPlan;

import org.apache.maven.artifact.resolver.ArtifactResolutionException;
import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.apache.maven.plugin.version.PluginVersionNotFoundException;

public class ProjectExecutionEvent {

    private final MavenSession session;

    private final MavenProject project;

    private final List<MojoExecution> executionPlan;

    private final Throwable cause;

    public ProjectExecutionEvent(MavenSession session, MavenProject project) {
        this(session, project, null, null);
    }

        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;
    }

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.internal.LifecycleExecutionPlanCalculator;
import org.apache.maven.lifecycle.internal.LifecycleStarter;
import org.apache.maven.lifecycle.internal.LifecycleTaskSegmentCalculator;