xml.namespace="http://maven.apache.org/EXTENSIONS/${version}"
  xml.schemaLocation="https://maven.apache.org/xsd/core-extensions-${version}.xsd">

  <id>core-extensions</id>
  <name>CoreExtensions</name>
  <description><![CDATA[
  <p>This is a reference for the Core Extensions descriptor.</p>
  <p>The default location for the Core Extensions descriptor file is <code>${maven.projectBasedir}/.mvn/extensions.xml</code></p>

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

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

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.project.ExtensionDescriptor;

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-test</groupId>
  <artifactId>t05-c</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <dependencies>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t05-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>true</optional>
    </dependency>
  </dependencies>

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>maven-test</groupId>
  <artifactId>t08-c</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <dependencies>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t08-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>true</optional>
    </dependency>
  </dependencies>

import org.apache.maven.model.DependencyManagement;
import org.apache.maven.model.Developer;
import org.apache.maven.model.DistributionManagement;
import org.apache.maven.model.Extension;
import org.apache.maven.model.IssueManagement;
import org.apache.maven.model.License;
import org.apache.maven.model.MailingList;
import org.apache.maven.model.Model;
import org.apache.maven.model.Organization;

import org.apache.maven.settings.Settings;
import org.apache.maven.settings.TrackableBase;
import org.apache.maven.settings.io.SettingsParseException;
import org.apache.maven.settings.io.SettingsReader;
import org.apache.maven.settings.io.SettingsWriter;
import org.apache.maven.settings.merge.MavenSettingsMerger;
import org.apache.maven.settings.validation.SettingsValidator;
import org.codehaus.plexus.interpolation.EnvarBasedValueSource;

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

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

/**
 * Defines the contract for a component responsible for invoking a Maven application
 * using the information provided in an {@link InvokerRequest}. This interface is central
 * to the construction and invocation of Maven commands and builds, and it fully parses arguments.
 *

 * under the License.
 */
package org.apache.maven.cling.invoker.mvn;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.function.UnaryOperator;

import org.apache.maven.api.cli.mvn.MavenOptions;
import org.apache.maven.cling.invoker.LayeredOptions;

/**

 */
package org.apache.maven.toolchain;

import java.io.File;

import org.apache.maven.toolchain.model.PersistedToolchains;

/**
 * Builds the toolchains model from a previously configured filesystem path to the toolchains file.
 * <strong>Note:</strong> This is an internal component whose interface can change without prior notice.
 *
 * @deprecated use {@link org.apache.maven.toolchain.building.ToolchainsBuilder} instead

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.superpom;

import org.apache.maven.model.Model;

/**
 * Provides the super POM that all models implicitly inherit from.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface SuperPomProvider {

    /**