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;

			<exclusions>
				<exclusion>
					<groupId>com.google.code.findbugs</groupId>
					<artifactId>annotations</artifactId>
				</exclusion>
				<exclusion>
					<groupId>xpp3</groupId>
					<artifactId>xpp3</artifactId>
				</exclusion>
				<exclusion>
					<groupId>stax</groupId>
					<artifactId>stax-api</artifactId>
				</exclusion>
				<exclusion>
					<groupId>org.bouncycastle</groupId>

        @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();

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

                && 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())) {

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

/**
 * Verifies exclusions listed in dependencyManagement are valid for
 * transitive dependencies.
 *
 */
@Deprecated
class ProjectInheritanceTest extends AbstractProjectInheritanceTestCase {

        List<Exclusion> exclusions = dependency.getExclusions();
        if (importMgmt != null && !exclusions.isEmpty()) {
            // Dependency excluded from import.
            List<Dependency> dependencies = importMgmt.getDependencies().stream()
                    .filter(candidate -> exclusions.stream().noneMatch(exclusion -> match(exclusion, candidate)))

                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>${truth.version}</version>
      <classifier>gwt</classifier>
      <scope>test</scope>
      <exclusions>
        <exclusion>
          <!-- use the guava we're building. -->
          <groupId>com.google.guava</groupId>
          <artifactId>guava</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>com.google.truth.extensions</groupId>

            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(