return new ImmutableLongArray(new long[] {e0, e1, e2, e3});
  }

  /** Returns an immutable array containing the given values, in order. */
  public static ImmutableLongArray of(long e0, long e1, long e2, long e3, long e4) {
    return new ImmutableLongArray(new long[] {e0, e1, e2, e3, e4});
  }

  /** Returns an immutable array containing the given values, in order. */

   * value).hashCode()}.
   *
   * <p>This method always return the value specified by {@link Long#hashCode()} in java, which
   * might be different from {@code ((Long) value).hashCode()} in GWT because {@link
   * Long#hashCode()} in GWT does not obey the JRE contract.
   *
   * <p><b>Java 8+ users:</b> use {@link Long#hashCode(long)} instead.
   *
   * @param value a primitive {@code long} value

   * value).hashCode()}.
   *
   * <p>This method always return the value specified by {@link Long#hashCode()} in java, which
   * might be different from {@code ((Long) value).hashCode()} in GWT because {@link
   * Long#hashCode()} in GWT does not obey the JRE contract.
   *
   * <p><b>Java 8+ users:</b> use {@link Long#hashCode(long)} instead.
   *
   * @param value a primitive {@code long} value

    assertMean(0, 0, 0);
    assertMean(-1, -1, -1);
    assertMean(Long.MIN_VALUE, Long.MIN_VALUE, Long.MIN_VALUE);
    assertMean(Long.MAX_VALUE, Long.MAX_VALUE, Long.MAX_VALUE);

    // Exhaustive checks
    for (long x : ALL_LONG_CANDIDATES) {
      for (long y : ALL_LONG_CANDIDATES) {
        assertMean(x, y);
      }
    }
  }

  /** Helper method that asserts the arithmetic mean of x and y is equal to the expectedMean. */

  /** Invokes {@code unit.}{@link TimeUnit#sleep(long) sleep(sleepFor)} uninterruptibly. */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  public static void sleepUninterruptibly(long sleepFor, TimeUnit unit) {
    boolean interrupted = false;
    try {
      long remainingNanos = unit.toNanos(sleepFor);
      long end = System.nanoTime() + remainingNanos;

   */
  public long sum() {
    return map.values().stream().mapToLong(Long::longValue).sum();
  }

  @LazyInit @CheckForNull private transient Map<K, Long> asMap;

  /** Returns a live, read-only view of the map backing this {@code AtomicLongMap}. */
  public Map<K, Long> asMap() {
    Map<K, Long> result = asMap;
    return (result == null) ? asMap = createAsMap() : result;

public class DfsImpl implements DfsResolver {

    private static final DfsReferralDataImpl NEGATIVE_ENTRY = new DfsReferralDataImpl();

    private static class CacheEntry <T> {

        long expiration;
        Map<String, T> map;


        CacheEntry ( long ttl ) {
            this.expiration = System.currentTimeMillis() + ttl * 1000L;
            this.map = new ConcurrentHashMap<>();
        }
    }

                for (Map.Entry<Long, Map<Long, TestCaseRegion>> classEntry : index.entrySet()) {
                    Long classId = classEntry.getKey();
                    Map<Long, TestCaseRegion> regions = classEntry.getValue();

                    indexOutput.writeLong(classId, true);
                    indexOutput.writeInt(regions.size(), true);

  /* Helper function to make a Long value from an Integer. */
  private static final Function<Integer, Long> TO_LONG =
      new Function<Integer, Long>() {
        @Override
        public Long apply(Integer n) {
          return Long.valueOf(n);
        }
      };

  /* Helper function to make a BigInteger value from a Long. */
  private static final Function<Long, BigInteger> TO_BIGINTEGER =

   */
  public long sum() {
    long sum = 0L;
    for (AtomicLong value : map.values()) {
      sum = sum + value.get();
    }
    return sum;
  }

  @LazyInit @CheckForNull private transient Map<K, Long> asMap;

  /** Returns a live, read-only view of the map backing this {@code AtomicLongMap}. */
  public Map<K, Long> asMap() {
    Map<K, Long> result = asMap;