if (values.size() >= 1) {
      a = values.get(0);
      if (values.size() >= 3) {
        b = values.get(1);
        c = values.get(2);
      }
    }
  }

  /** Resets the contents of navigableSet to have elements a, c, for the navigation tests. */
  protected void resetWithHole() {
    super.resetContainer(getSubjectGenerator().create(a, c));
    navigableSet = (NavigableSet<E>) getSet();
  }

      mutableValueGraph.putEdgeValue(endpoints, value);
      return this;
    }

    /**
     * Returns a newly-created {@code ImmutableValueGraph} based on the contents of this {@code
     * Builder}.
     */
    public ImmutableValueGraph<N, V> build() {
      return ImmutableValueGraph.copyOf(mutableValueGraph);
    }
  }

   */
  public static <T extends @Nullable Object> T[] newArray(T[] reference, int length) {
    return Platform.newArray(reference, length);
  }

  /**
   * Returns a new array that contains the concatenated contents of two arrays.
   *
   * @param first the first array of elements to concatenate
   * @param second the second array of elements to concatenate
   * @param type the component type of the returned array
   */

import java.io.Serializable;
import java.util.Map;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.NonNull;

/**
 * A {@link ClassToInstanceMap} whose contents will never change, with many other important
 * properties detailed at {@link ImmutableCollection}.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@Immutable(containerOf = "B")
@GwtIncompatible

import com.google.common.escape.Escaper;
import com.google.common.escape.Escapers;

/**
 * {@code Escaper} instances suitable for strings to be included in XML attribute values and
 * elements' text contents. When possible, avoid manual escaping by using templating systems and
 * high-level APIs that provide autoescaping. For example, consider <a
 * href="http://www.xom.nu/">XOM</a> or <a href="http://www.jdom.org/">JDOM</a>.
 *

      mutableValueGraph.putEdgeValue(endpoints, value);
      return this;
    }

    /**
     * Returns a newly-created {@code ImmutableValueGraph} based on the contents of this {@code
     * Builder}.
     */
    public ImmutableValueGraph<N, V> build() {
      return ImmutableValueGraph.copyOf(mutableValueGraph);
    }
  }

  }

  /**
   * Constructs a {@code TreeMultimap}, ordered by the natural ordering of its keys and values, with
   * the same mappings as the specified multimap.
   *
   * @param multimap the multimap whose contents are copied to this multimap
   */
  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
  public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> create(