return this;
        }

        public DependencyCoordinateFactoryRequestBuilder exclusions(Collection<Exclusion> exclusions) {
            if (exclusions != null) {
                if (this.exclusions.isEmpty()) {
                    this.exclusions = new ArrayList<>();
                }
                this.exclusions.addAll(exclusions);
            }
            return this;
        }

import org.apache.maven.model.Exclusion;

/**
 * Filter to exclude from a list of artifact patterns.
 */
public class ExclusionArtifactFilter implements ArtifactFilter {

    private final List<Exclusion> exclusions;
    private final List<Predicate<Artifact>> predicates;

    public ExclusionArtifactFilter(List<Exclusion> exclusions) {
        this.exclusions = exclusions;
        this.predicates =

      <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>

        <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>

        /*

        Logic for transitive global exclusions

        List<String> exclusions = new ArrayList<String>();

        for ( Dependency d : project.getDependencies() )
        {
            if ( d.getExclusions() != null )
            {
                for ( Exclusion e : d.getExclusions() )
                {
                    exclusions.add(  e.getGroupId() + ":" + e.getArtifactId() );
                }

      <type>jar</type>
      <scope>compile</scope>
      <exclusions>
        <exclusion>
          <groupId>commons-logging</groupId>
          <artifactId>commons-logging</artifactId>
        </exclusion>
        <exclusion>
          <groupId>commons-logging</groupId>
          <artifactId>commons-logging-api</artifactId>
        </exclusion>
        <exclusion>
          <groupId>log4j</groupId>

        <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>

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

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

    private void setArtifactProperties(ArtifactDescriptorResult result, Model model) {
        String downloadUrl = null;

        <scope>provided</scope>
        <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>
  </dependencyManagement>