outer.add("foo"); // necessary because we try to remove elements later on
    return outer;
  }

  private static final class TestDeque<E> implements Deque<E> {
    private final Deque<E> delegate = new LinkedList<>();
    private final Object mutex = new Object[0]; // something Serializable

    @Override
    public boolean offer(E o) {
      assertTrue(Thread.holdsLock(mutex));

    super(false, false, false, false, false);
  }

  @Override
  protected Map<K, V> makeEmptyMap() {
    throw new UnsupportedOperationException();
  }

  private static final Joiner JOINER = Joiner.on(", ");

  @Override
  protected final void assertMoreInvariants(Map<K, V> map) {
    // TODO: can these be moved to MapInterfaceTest?
    for (Entry<K, V> entry : map.entrySet()) {

import javax.inject.Singleton;

/**
 * {@code ejb} packaging plugins bindings provider for {@code default} lifecycle.
 */
@Named("ejb")
@Singleton
public final class EjbLifecycleMappingProvider extends AbstractLifecycleMappingProvider {
    // START SNIPPET: ejb
    private static final String[] BINDINGS = {
        "process-resources",
                "org.apache.maven.plugins:maven-resources-plugin:" + RESOURCES_PLUGIN_VERSION + ":resources",

    private static final long serialVersionUID = 1L;

    protected long took;
    private int totalShards;
    private int successfulShards;
    private int failedShards;
    private TotalHits totalHits;
    private Aggregations aggregations;

    private SearchRequestBuilder builder;

    public EsPagingResultBean(final SearchRequestBuilder builder) {
        this.builder = builder;

 * @since 20.0
 */
public abstract class AbstractGraph<N> extends AbstractBaseGraph<N> implements Graph<N> {
  /** Constructor for use by subclasses. */
  public AbstractGraph() {}

  @Override
  public final boolean equals(@Nullable Object obj) {
    if (obj == this) {
      return true;
    }
    if (!(obj instanceof Graph)) {
      return false;
    }
    Graph<?> other = (Graph<?>) obj;

    /**
     * Default constructor.
     */
    public AdminDashboardAction() {
        super();
    }

    /** The role for this action. */
    public static final String ROLE = "admin-dashboard";

    // ===================================================================================
    //                                                                           Attribute

 */
package okhttp3.recipes;

import java.io.IOException;
import java.util.concurrent.TimeUnit;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public final class PerCallSettings {
  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    Request request = new Request.Builder()

     *
     * @return the HTML response after logout
     */
    @Execute
    public HtmlResponse index() {
        final OptionalThing<FessUserBean> userBean = getUserBean();
        activityHelper.logout(userBean);
        final String redirectUrl = userBean.map(user -> ComponentUtil.getSsoManager().logout(user)).orElse(null);
        fessLoginAssist.logout();

import static java.util.Objects.requireNonNull;

/**
 * Maven specific transformer.
 */
@Singleton
@Named
final class MavenTransformer implements ArtifactTransformer {
    private final TransformerManager transformerManager;

    @Inject
    MavenTransformer(TransformerManager transformerManager) {
        this.transformerManager = requireNonNull(transformerManager);

 * Elasticsearch build tasks.
 */
public class DockerSupportPlugin implements Plugin<Project> {
    public static final String DOCKER_SUPPORT_SERVICE_NAME = "dockerSupportService";
    public static final String DOCKER_ON_LINUX_EXCLUSIONS_FILE = ".ci/dockerOnLinuxExclusions";

    @Override
    public void apply(Project project) {
        if (project != project.getRootProject()) {