public E higher(E e) {
    return Iterables.<@Nullable E>getFirst(tailSet(e, false), null);
  }

  @Override
  public E first() {
    return iterator().next();
  }

  @Override
  public E last() {
    return descendingIterator().next();
  }

  /**
   * Guaranteed to throw an exception and leave the set unmodified.
   *
   * @since 12.0
   * @throws UnsupportedOperationException always

                && match(exclusion.getArtifactId(), candidate.getArtifactId());
    }

    private boolean match(String match, String text) {
        return match.equals("*") || match.equals(text);
    }

    @SuppressWarnings("checkstyle:parameternumber")
    private Model doLoadDependencyManagement(
            Model model,
            ModelBuilderRequest request,

      @Override
      public boolean hasNext() {
        return (remaining > 0) || entryIterator.hasNext();
      }

      @Override
      public E next() {
        if (remaining <= 0) {
          Entry<E> entry = entryIterator.next();
          element = entry.getElement();
          remaining = entry.getCount();
        }
        remaining--;
        /*

    // We special-case for 0 or 1 elements, but going further is madness.
    if (!elements.hasNext()) {
      return of();
    }
    E first = elements.next();
    if (!elements.hasNext()) {
      return of(first);
    } else {
      return new ImmutableList.Builder<E>().add(first).addAll(elements).build();
    }
  }

  /**

                .resolve(this, Collections.singletonList(coordinate))
                .getArtifacts()
                .entrySet()
                .iterator()
                .next();
    }

    /**
     * Shortcut for <code>getService(ArtifactResolver.class).resolve(...)</code>
     *
     * @throws ArtifactResolverException if the artifact resolution failed

   * ...
   * synchronized (multimap) {  // Synchronizing on multimap, not values!
   *   Iterator<V> i = values.iterator(); // Must be in synchronized block
   *   while (i.hasNext()) {
   *     foo(i.next());
   *   }
   * }
   * }</pre>
   *
   * <p>Failure to follow this advice may result in non-deterministic behavior.
   *
   * <p>Note that the generated multimap's {@link Multimap#removeAll} and {@link

            if (stk.size() < 2) {
                return null;
            }
            Iterator<ActivationFrame> f = stk.iterator();

            String location = f.next().location;
            ActivationFrame parent = f.next();

            return parent.parent.map(p -> p.getLocation(location)).orElse(null);
        };
        final UnaryOperator<String> transformer = s -> {

     */
    @CanIgnoreReturnValue
    @Override
    public Builder<E> addAll(Iterator<? extends E> elements) {
      while (elements.hasNext()) {
        add(elements.next());
      }
      return this;
    }

    private void dedupAndCoalesceAndDeleteEmpty() {
      dedupAndCoalesce(false);

            if (extensions != null) {
                for (Extension ext : extensions) {
                    String version;
                    if (ext.getVersion() == null || ext.getVersion().isEmpty()) {
                        version = "RELEASE";
                    } else {
                        version = ext.getVersion();
                    }

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Date;
import java.util.Map;
import java.util.TimeZone;

import org.apache.maven.api.metadata.Metadata;