this.role = role;
        this.roleHint = null;
    }

    public Requirement(String role, String roleHint) {
        this.role = role;
        this.roleHint = roleHint;
    }

    public String getRole() {
        return role;
    }

    public String getRoleHint() {
        return roleHint;
    }

    /**
     * Creates a shallow copy of this requirement.
     */
    @Override

        assertEquals("3.0.0", mp.getSince());

        ComponentRequirement cr = md.getRequirements().get(0);

        assertEquals("org.codehaus.plexus.archiver.Archiver", cr.getRole());
        assertEquals("jar", cr.getRoleHint());
        assertEquals("jarArchiver", cr.getFieldName());

        ComponentDependency cd = pd.getDependencies().get(0);

     */
    public void setMojoConfiguration(PlexusConfiguration mojoConfiguration) {
        this.mojoConfiguration = mojoConfiguration;
    }

    /** {@inheritDoc} */
    public String getRole() {
        return isV4Api() ? "org.apache.maven.api.plugin.Mojo" : Mojo.ROLE;
    }

    /** {@inheritDoc} */
    public String getRoleHint() {
        return getId();
    }

    /**

            }

            Artifact resolvedArtifact = event.getArtifact();
            Artifact nodeArtifact = collectStepTrace.getNode().getArtifact();

            if (isInScope(resolvedArtifact, nodeArtifact) || "pom".equals(resolvedArtifact.getExtension())) {
                Dependency node = collectStepTrace.getNode();
                trackingData.add(resolvedArtifact.toString());
                indent += "  ";

        }
        mergedItem.languages = langList.toArray(new String[langList.size()]);

        final List<String> roleList = new ArrayList<>(item1.getRoles().length + item2.getRoles().length);
        Collections.addAll(roleList, item1.getRoles());
        for (final String role : item2.getRoles()) {
            if (!roleList.contains(role)) {
                roleList.add(role);
            }
        }

/** Unit tests for {@link Futures#getDone}. */
@GwtCompatible
public class FuturesGetDoneTest extends TestCase {
  public void testSuccessful() throws ExecutionException {
    assertThat(getDone(immediateFuture("a"))).isEqualTo("a");
  }

  public void testSuccessfulNull() throws ExecutionException {
    assertThat(getDone(Futures.<@Nullable String>immediateFuture(null))).isEqualTo(null);
  }

/** Unit tests for {@link Futures#getDone}. */
@GwtCompatible
public class FuturesGetDoneTest extends TestCase {
  public void testSuccessful() throws ExecutionException {
    assertThat(getDone(immediateFuture("a"))).isEqualTo("a");
  }

  public void testSuccessfulNull() throws ExecutionException {
    assertThat(getDone(Futures.<@Nullable String>immediateFuture(null))).isEqualTo(null);
  }

    @Override
    public void artifactInstalling(RepositoryEvent event) {
        logger.info("Installing {} to {}", event.getArtifact().getFile(), event.getFile());
    }

    @Override
    public void metadataInstalling(RepositoryEvent event) {
        logger.debug("Installing {} to {}", event.getMetadata(), event.getFile());
    }

    @Override
    public void metadataResolved(RepositoryEvent event) {

    }

    public void artifactInstalled(RepositoryEvent event) {
        println("artifactInstalled", event.getArtifact() + " to " + event.getFile());
    }

    public void artifactInstalling(RepositoryEvent event) {
        println("artifactInstalling", event.getArtifact() + " to " + event.getFile());
    }

    public void artifactResolved(RepositoryEvent event) {

package com.google.common.util.concurrent;

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.util.concurrent.Callables.returning;
import static com.google.common.util.concurrent.Futures.getDone;
import static com.google.common.util.concurrent.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.util.concurrent.TestPlatform.verifyThreadWasNotInterrupted;