for (Exclusion exclusion : d.getExclusions()) {
                if (request.getValidationLevel() < ModelBuilderRequest.VALIDATION_LEVEL_MAVEN_3_0) {
                    validateCoordinateId(
                            prefix,
                            "exclusions.exclusion.groupId",
                            problems,

                .map(d -> mergeDependency(d, sourceIterator.next(), sourceDominant, context))
                .collect(Collectors.toList()));
    }

    @Override
    protected void mergeDependency_Exclusions(
            Dependency.Builder builder,
            Dependency target,
            Dependency source,
            boolean sourceDominant,
            Map<Object, Object> context) {
        // don't merge
    }

        </field>
        <field>
          <name>exclusions</name>
          <version>4.0.0+</version>
          <description>Lists a set of artifacts that should be excluded from this dependency's
            artifact list when it comes to calculating transitive dependencies.</description>
          <association>
            <type>Exclusion</type>
            <multiplicity>*</multiplicity>
          </association>

            @Nonnull
            @Override
            public Collection<Exclusion> getExclusions() {
                return new MappedCollection<>(dependency.getExclusions(), this::toExclusion);
            }

            private Exclusion toExclusion(org.apache.maven.api.model.Exclusion exclusion) {
                return new Exclusion() {
                    @Nullable
                    @Override

            return addDependency(groupId, artifactId, version, scope, (Exclusion) null);
        }

        public ProjectBuilder addDependency(
                String groupId, String artifactId, String version, String scope, Exclusion exclusion) {
            return addDependency(groupId, artifactId, version, scope, null, exclusion);
        }

        public ProjectBuilder addDependency(

package org.apache.maven.artifact.resolver.filter;

import java.util.List;

import org.apache.maven.artifact.Artifact;

/**
 * Filter to exclude from a list of artifact patterns.
 *
 * TODO I think this is equiv. to exclusion set filter in maven-core
 */
public class ExcludesArtifactFilter extends IncludesArtifactFilter {
    public ExcludesArtifactFilter(List<String> patterns) {
        super(patterns);
    }

    @Override
    public Collection<Exclusion> getExclusions() {
        return new MappedCollection<>(dependency.getExclusions(), this::toExclusion);
    }

    private Exclusion toExclusion(org.eclipse.aether.graph.Exclusion exclusion) {
        return new Exclusion() {
            @Nullable
            @Override
            public String getGroupId() {
                return exclusion.getGroupId();
            }

                            map(request.getExclusions(), this::toExclusion)));
        }
    }

    private org.eclipse.aether.graph.Exclusion toExclusion(Exclusion exclusion) {
        return new org.eclipse.aether.graph.Exclusion(exclusion.getGroupId(), exclusion.getArtifactId(), "*", "*");
    }

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 dep1 = new Dependency();
        dep1.setGroupId( "test" );
        dep1.setArtifactId( "test-artifact" );
        dep1.setVersion( "1" );
        dep1.setType( "jar" );

        Exclusion exc = new Exclusion();
        exc.setGroupId( "test" );
        exc.setArtifactId( "test-artifact3" );

        dep1.addExclusion( exc );

        Dependency dep2 = new Dependency();
        dep2.setGroupId( "test" );