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

/**
 * Service to manage {@link Toolchain}s.
 *
 * @since 4.0.0
 */
@Experimental
public interface ToolchainManager extends Service {

    /**
     *
     * @param session
     * @param type
     * @param requirements

  define for each {{{../maven-model/maven.html#class_dependency}dependency type}} information on the artifact
  (classifier, extension, language) and how to manage it as dependency (add to classpath, include dependencies).

  They are replaced in Maven 4 with Maven 4 API Core's {{{../api/maven-api-core/apidocs/org/apache/maven/api/Type.html}Dependency Types}},

import org.eclipse.aether.resolution.DependencyResult;
import org.eclipse.aether.util.filter.AndDependencyFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Provides basic services to manage Maven plugins and their mojos. This component is kept general in its design such
 * that the plugins/mojos can be used in arbitrary contexts. In particular, the mojos can be used for ordinary build

            fireEvent(ResolutionListener.MANAGE_ARTIFACT_VERSION, listeners, node, artifact);
            node.getArtifact().setVersion(artifact.getVersion());
        }

        if ((artifact.getScope() != null)
                && (!node.isChildOfRootNode() || node.getArtifact().getScope() == null)) {
            fireEvent(ResolutionListener.MANAGE_ARTIFACT_SCOPE, listeners, node, artifact);

        </field>
      </fields>
    </class>
    <class>
      <name>IssueManagement</name>
      <description>Information about the issue tracking (or bug tracking) system used to manage this
        project.</description>
      <version>4.0.0+</version>
      <fields>
        <field>
          <name>system</name>
          <version>4.0.0+</version>

    <version>4.0.0-beta-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-api</artifactId>
  <packaging>pom</packaging>
  <name>Maven 4 API</name>
  <description>A new immutable API for Maven 4 to better manage what plugins and extensions can influence.</description>

  <modules>
    <module>maven-api-meta</module>
    <module>maven-api-di</module>
    <module>maven-api-xml</module>
    <module>maven-api-model</module>

    int UPDATE_SCOPE_CURRENT_POM = 9;

    int SELECT_VERSION_FROM_RANGE = 10;

    int RESTRICT_RANGE = 11;

    int MANAGE_ARTIFACT_VERSION = 12;

    int MANAGE_ARTIFACT_SCOPE = 13;

    int MANAGE_ARTIFACT_SYSTEM_PATH = 14;

    void testArtifact(Artifact node);

    void startProcessChildren(Artifact artifact);

    void endProcessChildren(Artifact artifact);

    void includeArtifact(Artifact artifact);

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  <packaging>pom</packaging>
  <name>Apache Maven</name>
  <description>
    Maven is a software project management and comprehension tool. Based on the concept of a project object model
    (POM), Maven can manage a project's build, reporting and documentation from a central piece of information.
  </description>
  <url>http://maven.apache.org/</url>
  <issueManagement>
    <system>jira</system>