*/
package org.apache.maven;

import java.io.File;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

/**
 * Signals a collision of two or more projects with the same g:a:v during a reactor build.
 *
 */
public class DuplicateProjectException extends MavenExecutionException {

    private Map<String, List<File>> collisions;

    /**
     * Creates a new exception with specified details.
     *

    // Reactor Failure Mode
    // ----------------------------------------------------------------------

    String REACTOR_FAIL_FAST = "FAIL_FAST";

    String REACTOR_FAIL_AT_END = "FAIL_AT_END";

    String REACTOR_FAIL_NEVER = "FAIL_NEVER";

    // ----------------------------------------------------------------------
    // Reactor Make Mode

    }

    List<Project> getProjects(List<org.apache.maven.project.MavenProject> projects);

    /**
     * May return null if the input project is null or is not part of the reactor.
     */
    @Nullable
    Project getProject(org.apache.maven.project.MavenProject project);

    List<org.apache.maven.artifact.repository.ArtifactRepository> toArtifactRepositories(

 */
public interface Builder {
    //
    // Be nice to whittle this down to Session, maybe add task segments to the session. The session really is
    // the place to store reactor related information.
    //
    void build(
            MavenSession session,
            ReactorContext reactorContext,
            ProjectBuildList projectBuilds,
            List<TaskSegment> taskSegments,

         * to new fixed version, or by dropping plugin use from currently built project.
         * <p>
         * Note: if a reactor build contains a plugin (with issues) and later that built plugin is used in build,
         * it will be reported as "external". It is up to developer to correctly interpret output (GAV) of issues

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

import org.apache.maven.execution.MavenExecutionResult;

/**
 * Context that is fixed for the entire reactor build.
 *
 * @since 3.0
 *         NOTE: This class is not part of any public api and can be changed or deleted without prior notice.
 */
public class ReactorContext {
    private final MavenExecutionResult result;

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

import java.time.Duration;

import org.apache.maven.project.MavenProject;

/**
 * Summarizes the result of a successful project build in the reactor.
 *
 */
public class BuildSuccess extends BuildSummary {

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.

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

import java.time.Duration;

import org.apache.maven.project.MavenProject;

/**
 * Summarizes the result of a failed project build in the reactor.
 *
 */
public class BuildFailure extends BuildSummary {

    /**
     * The cause of the build failure.
     */
    private final Throwable cause;

    /**

        if (t instanceof Exception exception && !(t instanceof RuntimeException)) {
            eventCatapult.fire(ExecutionEvent.Type.ProjectFailed, currentSession, null, exception);
        }

        // reactor failure modes
        if (t instanceof RuntimeException || !(t instanceof Exception)) {
            // fail fast on RuntimeExceptions, Errors and "other" Throwables

    //
    // 4) Create MavenSession.
    //
    // 5) Execute AbstractLifecycleParticipant.afterSessionStart(session)
    //
    // 6) Get reactor projects looking for general POM errors
    //
    // 7) Create ProjectDependencyGraph using trimming which takes into account --projects and reactor mode.
    // This ensures that the projects passed into the ReactorReader are only those specified.
    //