msgs.add("* An aggregator Mojo is already executing in parallel build,    *");
        msgs.add("* but aggregator Mojos require exclusive access to reactor to   *");
        msgs.add("* prevent race conditions. This mojo execution will be blocked  *");
        msgs.add("* until the aggregator work is done.                            *");

<project>
  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>lifecycle-participant-reactor-dependency-injection</groupId>
    <artifactId>parent</artifactId>
    <version>1.0</version>
  </parent>

  <artifactId>module-b</artifactId>

import org.apache.maven.artifact.repository.layout.ArtifactRepositoryLayout;
import org.apache.maven.repository.Proxy;

/**
 * Abstraction of an artifact repository. Artifact repositories can be remote, local, or even build reactor or
 * IDE workspace.
 *
 * @deprecated Avoid use of this type, if you need access to local repository use repository system classes instead.
 */
@Deprecated
public interface ArtifactRepository {

<project>
  <modelVersion>4.0.0</modelVersion>

  <groupId>lifecycle-participant-reactor-dependency-injection</groupId>
  <artifactId>parent</artifactId>
  <version>1.0</version>
  <packaging>pom</packaging>

  <modules>
    <module>module-a</module>
    <module>module-b</module>
  </modules>

 */
package org.apache.maven.project;

import java.io.File;
import java.util.HashMap;
import java.util.Map;

/**
 * Holds all POM files that are known to the reactor. This allows the project builder to resolve imported POMs from the
 * reactor when building another project's effective model.
 */
class ReactorModelPool {

    private final Map<CacheKey, File> pomFiles = new HashMap<>();

  <groupId>org.apache.maven.its.mng3023</groupId>
  <artifactId>parent</artifactId>
  <version>1</version>
  <packaging>pom</packaging>

  <name>Maven Integration Test :: MNG-3023</name>
  <description>Test that reactor projects are included in dependency resolution.</description>

  <modules>
    <module>dependency</module>
    <module>consumer</module>
  </modules>

<project>
  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>lifecycle-participant-reactor-dependency-injection</groupId>
    <artifactId>parent</artifactId>
    <version>1.0</version>
  </parent>

  <artifactId>module-a</artifactId>

import org.apache.maven.execution.ProjectDependencyGraph;
import org.apache.maven.model.building.Result;

/**
 * Builds the {@link ProjectDependencyGraph inter-dependencies graph} between projects in the reactor.
 *
 * @since 3.0-alpha
 */
public interface GraphBuilder {
    String HINT = "graphBuilder";

    Result<? extends ProjectDependencyGraph> build(MavenSession session);

import org.apache.maven.lifecycle.internal.builder.BuilderCommon;
import org.apache.maven.project.MavenProject;

/**
 * Contains status information that is global to an entire reactor build.
 *
 * @since 3.0
 */
public class ReactorBuildStatus {
    private final ProjectDependencyGraph projectDependencyGraph;

    <artifactId>parent</artifactId>
    <version>1</version>
  </parent>

  <artifactId>consumer</artifactId>

  <name>Maven Integration Test :: MNG-3023 :: Consumer</name>
  <description>Test that reactor projects are included in dependency resolution.</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven.its.mng3023</groupId>
      <artifactId>dependency</artifactId>
      <version>1</version>