<metadata>
  <plugins>
    <plugin>
      <name>Maven Integration Test Plugin</name>
      <prefix>clean</prefix>
      <artifactId>maven-clean-plugin</artifactId>
    </plugin>
    <plugin>
      <name>Maven Integration Test Plugin</name>
      <prefix>deploy</prefix>
      <artifactId>maven-deploy-plugin</artifactId>
    </plugin>
    <plugin>
      <name>Maven Integration Test Plugin</name>
      <prefix>install</prefix>

        if (property == null) {
            return false;
        }

        String name = property.getName();
        boolean reverseName = false;

        if (name != null && name.startsWith("!")) {
            reverseName = true;
            name = name.substring(1);
        }

        if (name == null || name.isEmpty()) {
            problems.add(
                    BuilderProblem.Severity.ERROR,

        private final String goalPrefix;

        private final String name;

        PluginInfo(String groupId, String artifactId, String goalPrefix, String name) {
            this.groupId = groupId;
            this.artifactId = artifactId;
            this.goalPrefix = goalPrefix;
            this.name = name;
        }
    }

    private final PluginInfo pluginInfo;

import java.util.Locale;
import java.util.stream.Stream;

/**
 * OS support
 */
public class Os {

    /**
     * The OS Name.
     */
    public static final String OS_NAME = System.getProperty("os.name").toLowerCase(Locale.ENGLISH);

    /**
     * The OA architecture.
     */
    public static final String OS_ARCH = System.getProperty("os.arch").toLowerCase(Locale.ENGLISH);

    <groupId>org.apache.maven</groupId>
    <version>2.0</version>
  </parent>
  <modelVersion>4.0.0</modelVersion>
  <groupId>org.apache.maven</groupId>
  <artifactId>maven-plugin-api</artifactId>
  <name>Maven Plugin API</name>
  <version>2.0</version>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.13.1</version>
      <scope>test</scope>
    </dependency>

  <mailingLists>
    <mailingList>
      <name>Maven User List</name>
      <subscribe>******@****.***</subscribe>
      <unsubscribe>******@****.***</unsubscribe>
      <post>******@****.***</post>
      <archive>http://mail-archives.apache.org/mod_mbox/maven-users</archive>
    </mailingList>
    <mailingList>
      <name>Maven Developer List</name>

import org.eclipse.aether.installation.InstallRequest;

/**
 * Maven GA level metadata generator factory.
 */
@Named(VersionsMetadataGeneratorFactory.NAME)
@Singleton
public class VersionsMetadataGeneratorFactory implements MetadataGeneratorFactory {
    public static final String NAME = "versions";

    @Override
    public MetadataGenerator newInstance(RepositorySystemSession session, InstallRequest request) {

  <parent>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven-api</artifactId>
    <version>4.0.0-beta-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api-meta</artifactId>
  <name>Maven 4 API :: Meta annotations</name>
  <description>Maven 4 API - Java meta annotations.</description>

  <parent>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven</artifactId>
    <version>4.0.0-beta-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-builder-support</artifactId>

  <name>Maven Builder Support</name>
  <description>Support for descriptor builders (model, setting, toolchains)</description>

  <dependencies>
    <dependency>
      <groupId>org.junit.jupiter</groupId>

  <modelVersion>4.0.0</modelVersion>

  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-clean-plugin</artifactId>
  <version>0.1</version>
  <packaging>maven-plugin</packaging>

  <name>Maven Integration Test Plugin</name>
  <description>
    A test plugin to assist testing of Maven core.
  </description>
  <inceptionYear>2009</inceptionYear>

  <distributionManagement>
    <repository>
      <id>maven-core-it</id>