return candidate.withExclusions(Stream.concat(candidate.getExclusions().stream(), exclusions.stream())
                .toList());
    }

    private boolean match(Exclusion exclusion, org.apache.maven.api.model.Dependency candidate) {
        return match(exclusion.getGroupId(), candidate.getGroupId())
                && match(exclusion.getArtifactId(), candidate.getArtifactId());
    }

                && equals(d1.getExclusions(), d2.getExclusions());
    }

    private boolean equals(Collection<Exclusion> ce1, Collection<Exclusion> ce2) {
        if (ce1.size() == ce2.size()) {
            Iterator<Exclusion> i1 = ce1.iterator();
            Iterator<Exclusion> i2 = ce2.iterator();
            while (i1.hasNext() && i2.hasNext()) {
                if (!equals(i1.next(), i2.next())) {

        }

        if (!d.getExclusions().isEmpty()) {
            List<String> exclusions = new ArrayList<>();

            for (Exclusion exclusion : d.getExclusions()) {
                exclusions.add(exclusion.getGroupId() + ':' + exclusion.getArtifactId());
            }

            artifact.setDependencyFilter(new ExcludesArtifactFilter(exclusions));
        }

        return artifact;
    }

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

     *
     * @since 3.9.2
     */
    @Config(defaultValue = "inline")
    public static final String MAVEN_PLUGIN_VALIDATION = "maven.plugin.validation";

    /**
     * Plugin validation exclusions.
     *
     * @since 3.9.6
     */
    @Config
    public static final String MAVEN_PLUGIN_VALIDATION_EXCLUDES = "maven.plugin.validation.excludes";

    /**
     * ProjectBuilder parallelism.

        excludedPackages.add("org.gradle.plugins.ide.idea.model");
        excludedPackages.add("org.gradle.api.tasks.testing.logging");

        // TODO - rename some incubating types to remove collisions and then remove these exclusions
        excludedPackages.add("org.gradle.plugins.binaries.model");

        // Exclude classes that were moved in a different package but the deprecated ones are not removed yet

                                    manageArtifact(child, managedVersions, listeners);

                                    // Also, we need to ensure that any exclusions it presents are
                                    // added to the artifact before we retrieve the metadata
                                    // for the artifact; otherwise we may end up with unwanted

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 DependencyCoordinates#getExclusions()
 */
@Experimental
public interface Exclusion {
    @Nullable
    String getGroupId();

    @Nullable
    String getArtifactId();

        </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>

import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Tests {@code Exclusion}.
 *
 */
class ExclusionTest {

    @Test
    void testHashCodeNullSafe() {
        new Exclusion().hashCode();
    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new Exclusion().equals(null));

        new Exclusion().equals(new Exclusion());
    }

    @Test
    void testEqualsIdentity() {