super(message);
        this.project = project;
    }

    public LifecycleExecutionException(String message, MojoExecution execution, MavenProject project, Throwable cause) {
        super(message, cause);
        this.project = project;
    }

    public LifecycleExecutionException(MojoExecution execution, MavenProject project, Throwable cause) {

    /**
     * Create the MojoExecution configuration based on configuration for a Mojo in the MavenProject and the
     * default configuration for the Mojo from the containing plugin's plugin.xml descriptor.
     *
     * @param project
     * @param mojoExecution
     * @param allowPluginLevelConfig
     */
    void configure(MavenProject project, MojoExecution mojoExecution, boolean allowPluginLevelConfig);

    private final MavenProject project;

    private final List<MojoExecution> executionPlan;

    private final Throwable cause;

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

    public ProjectExecutionEvent(MavenSession session, MavenProject project, List<MojoExecution> executionPlan) {
        this(session, project, executionPlan, null);
    }

    private final MavenProject project;

    public PhaseRecorder(MavenProject project) {
        this.project = project;
    }

    public void observeExecution(MojoExecution mojoExecution) {
        String lifecyclePhase = mojoExecution.getLifecyclePhase();

        if (lifecyclePhase != null) {
            PhaseId phaseId = PhaseId.of(lifecyclePhase);
            if (lastLifecyclePhase == null) {

        node2.mojos.forEach((k, v) -> node1.mojos.merge(k, v, this::mergeMojos));
        return node1;
    }

    private Map<String, MojoExecution> mergeMojos(Map<String, MojoExecution> l1, Map<String, MojoExecution> l2) {
        l2.forEach(l1::putIfAbsent);
        return l1;
    }

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.execution;

import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;

/**
 * Holds data relevant for an execution event.
 *
 */
public interface ExecutionEvent {

    /**
     * The possible types of execution events.

import org.apache.maven.internal.transformation.TransformerManager;
import org.apache.maven.lifecycle.MavenExecutionPlan;
import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.project.MavenProject;

/**
 * <p>
 * Builds one or more lifecycles for a full module
 * </p>

 * under the License.
 */
package org.apache.maven.internal.impl;

import java.util.Optional;

import org.apache.maven.api.Event;
import org.apache.maven.api.EventType;
import org.apache.maven.api.MojoExecution;
import org.apache.maven.api.Project;
import org.apache.maven.api.Session;
import org.apache.maven.execution.ExecutionEvent;

public class DefaultEvent implements Event {
    private final InternalMavenSession session;

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

import org.apache.maven.execution.MavenSession;
import org.apache.maven.plugin.InvalidPluginDescriptorException;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.MojoNotFoundException;
import org.apache.maven.plugin.PluginDescriptorParsingException;
import org.apache.maven.plugin.PluginNotFoundException;

    /**
     * Gets the current mojo execution (if any).
     *
     * @return the current mojo execution or {@code empty()} if not applicable
     */
    @Nonnull
    Optional<MojoExecution> getMojoExecution();

    /**
     * Gets the exception that caused the event (if any).
     *
     * @return the exception or {@code empty()} if none
     */
    Optional<Exception> getException();