if (artifacts == null) {
            artifacts = new LinkedHashSet<>();
        }

        artifacts.add(artifact);
    }

    public Set<Artifact> getArtifacts() {
        return artifacts;
    }

    public void addRequestedArtifact(Artifact artifact) {
        if (requestedArtifacts == null) {
            requestedArtifacts = new LinkedHashSet<>();
        }

        requestedArtifacts.add(artifact);

import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.Set;

import org.apache.maven.artifact.Artifact;

/**
 */
public class ExclusionSetFilter implements ArtifactFilter {
    private Set<String> excludes;

    public ExclusionSetFilter(String[] excludes) {
        this.excludes = new LinkedHashSet<>(Arrays.asList(excludes));
    }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project;

import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;

import org.apache.maven.lifecycle.LifeCyclePluginAnalyzer;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginExecution;

/**
 */

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.lifecycle;

import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;

import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginExecution;

/**
 */
public class EmptyLifecyclePluginAnalyzer implements LifeCyclePluginAnalyzer {

     */
    private fun assertSetEquals(
      message: String,
      expected: List<Header>,
      observed: List<Header>,
    ) {
      assertThat(LinkedHashSet(observed), message)
        .isEqualTo(LinkedHashSet(expected))
    }
  }

    public static CoreExtensionEntry discoverFrom(ClassRealm loader) {
        Set<String> artifacts = new LinkedHashSet<>();
        Set<String> packages = new LinkedHashSet<>();

        try {
            Enumeration<URL> urls = loader.getResources(BUILDER.getExtensionDescriptorLocation());
            while (urls.hasMoreElements()) {

 */
package org.apache.maven.artifact.resolver;

import javax.inject.Inject;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import org.apache.maven.artifact.AbstractArtifactComponentTestCase;
import org.apache.maven.artifact.Artifact;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.artifact.resolver.filter;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

import org.apache.maven.artifact.Artifact;

/**
 * Filter to include from a list of artifact patterns.
 *
 */

        private final LinkedHashSet<String> pluginDeclarations;

        private final HashMap<IssueLocality, LinkedHashSet<String>> pluginIssues;

        private final HashMap<IssueLocality, LinkedHashMap<String, LinkedHashSet<String>>> mojoIssues;

        private PluginValidationIssues() {
            this.pluginDeclarations = new LinkedHashSet<>();
            this.pluginIssues = new HashMap<>();

 * under the License.
 */
package org.apache.maven.repository;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.metadata.ArtifactMetadata;
import org.apache.maven.artifact.repository.ArtifactRepository;