Optional<Boolean> model();

    /**
     * Should upgrade plugins known to fail with Maven 4 to their minimum compatible versions.
     * This includes upgrading plugins like maven-exec-plugin, maven-enforcer-plugin,
     * flatten-maven-plugin, and maven-shade-plugin to versions that work with Maven 4.
     *
     * @return an {@link Optional} containing the boolean value {@code true} if specified, or empty
     */
    @Nonnull

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.google.guava</groupId>
    <artifactId>guava-parent</artifactId>
    <version>999.0.0-HEAD-android-SNAPSHOT</version>
  </parent>

    <artifactId>p0</artifactId>
    <groupId>maven-t09</groupId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-t09</groupId>
  <artifactId>p2</artifactId>
  <packaging>pom</packaging>
  <name>p2</name>
  <version>1.0</version>
  <scm>
    <url>scm-url</url>
  </scm>

  <dependencies>

    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t09-a</artifactId>

    <artifactId>p0</artifactId>
    <groupId>maven-t10</groupId>
    <version>1.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-t10</groupId>
  <artifactId>p1</artifactId>
  <packaging>pom</packaging>
  <name>p1</name>
  <version>1.0</version>
  <scm>
    <url>scm-url</url>
  </scm>

  <dependencies>

    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t10-a</artifactId>

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <!-- do_not_remove: published-with-gradle-metadata -->
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.google.guava</groupId>
    <artifactId>guava-parent</artifactId>

import org.apache.commons.cli.ParseException;
import org.apache.maven.Maven;
import org.apache.maven.api.Constants;
import org.apache.maven.cli.transfer.ConsoleMavenTransferListener;
import org.apache.maven.cli.transfer.QuietMavenTransferListener;
import org.apache.maven.cli.transfer.SimplexTransferListener;
import org.apache.maven.cli.transfer.Slf4jMavenTransferListener;
import org.apache.maven.eventspy.internal.EventSpyDispatcher;

under the License.
-->

<model xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.apache.maven</groupId>
  <artifactId>maven-core</artifactId>
  <packaging>jar</packaging>
  <name>Maven</name>
  <version>2.0-SNAPSHOT</version>

 * under the License.
 */
package org.apache.maven.artifact.resolver;

import java.io.File;
import java.io.InputStream;

import org.apache.maven.wagon.ResourceDoesNotExistException;
import org.apache.maven.wagon.TransferFailedException;
import org.apache.maven.wagon.authorization.AuthorizationException;
import org.apache.maven.wagon.events.TransferListener;
import org.apache.maven.wagon.providers.file.FileWagon;

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

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

/**
 * A range of versions.
 *
 * {@code VersionConstraint} objects are created using the
 * {@linkplain org.apache.maven.api.services.VersionParser} service.
 *
 * @see Version

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

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

import java.util.HashMap;
import java.util.Map;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginManagement;
import org.apache.maven.plugin.version.DefaultPluginVersionRequest;