Exclusion exclusion1 = new Exclusion();
        exclusion1.setGroupId("*");
        exclusion1.setArtifactId("maven-model");

        Exclusion exclusion2 = new Exclusion();
        exclusion2.setGroupId("org.apache.maven");
        exclusion2.setArtifactId("maven-core");

        ExclusionArtifactFilter filter = new ExclusionArtifactFilter(Arrays.asList(exclusion1, exclusion2));

package org.apache.maven.api;

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

/**
 * A dependency exclusion.
 *
 * @since 4.0.0
 * @see DependencyCoordinate#getExclusions()
 */
@Experimental
public interface Exclusion {
    @Nullable
    String getGroupId();

    @Nullable
    String getArtifactId();

      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t09-b</artifactId>
        <version>1.0</version>
        <exclusions>
          <exclusion>
            <groupId>maven-test</groupId>
            <artifactId>t09-c</artifactId>
          </exclusion>
        </exclusions>
      </dependency>

    </dependencies>

  </dependencyManagement>

                dependency.getOptional() != null ? dependency.isOptional() : null,
                exclusions);
    }

    private static Exclusion toExclusion(org.apache.maven.model.Exclusion exclusion) {
        return new Exclusion(exclusion.getGroupId(), exclusion.getArtifactId(), "*", "*");
    }

    public static ArtifactTypeRegistry newArtifactTypeRegistry(ArtifactHandlerManager handlerManager) {

        <version>0.1</version>
        <type>war</type>
        <scope>runtime</scope>
        <exclusions>
          <exclusion>
            <groupId>org.apache.maven.its</groupId>
            <artifactId>excluded-managed-dep</artifactId>
          </exclusion>
        </exclusions>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <dependencies>
    <dependency>

        <artifactId>plexus-container-default</artifactId>
        <version>${plexus.version}</version>
        <exclusions>
          <exclusion>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging-api</artifactId>
          </exclusion>
        </exclusions>
      </dependency>
    </dependencies>
  </dependencyManagement>

      <artifactId>maven-core-it-support</artifactId>
      <version>1.3</version>
      <scope>runtime</scope>
      <exclusions>
        <exclusion>
          <groupId>commons-lang</groupId>
          <artifactId>commons-lang</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
  </dependencies>

        @Override
        protected void mergeDependency_Exclusions(
                Dependency.Builder builder,
                Dependency target,
                Dependency source,
                boolean sourceDominant,
                Map<Object, Object> context) {
            List<Exclusion> tgt = target.getExclusions();
            if (tgt.isEmpty()) {
                List<Exclusion> src = source.getExclusions();

                Dependency dependency = dependencies.get(key);
                Collection<Exclusion> exclusions = dependency != null ? dependency.getExclusions() : null;
                org.eclipse.aether.graph.Dependency dep = RepositoryUtils.toDependency(artifact, exclusions);
                if (!DependencyScope.SYSTEM.is(dep.getScope())
                        && dep.getArtifact().getFile() != null) {

        <version>${commonsCliVersion}</version>
        <exclusions>
          <exclusion>
            <artifactId>commons-lang</artifactId>
            <groupId>commons-lang</groupId>
          </exclusion>
          <exclusion>
            <artifactId>commons-logging</artifactId>
            <groupId>commons-logging</groupId>
          </exclusion>
        </exclusions>
      </dependency>
    <dependency>