if (set == null) {
        return ImmutableSet.of();
      }
      ImmutableSet<E> ret = ImmutableEnumSet.asImmutable(set);
      set = null; // subsequent manual manipulation of the accumulator mustn't affect ret
      return ret;
    }
  }

  @GwtIncompatible
  @SuppressWarnings({"rawtypes", "unchecked"})
  static <E extends Comparable<? super E>>

    for (int k = 0; k < LongMath.biggestSimpleBinomials.length; k++) {
      assertTrue(LongMath.biggestSimpleBinomials[k] <= LongMath.biggestBinomials[k]);
      long unused = simpleBinomial(LongMath.biggestSimpleBinomials[k], k); // mustn't throw
      if (LongMath.biggestSimpleBinomials[k] < Integer.MAX_VALUE) {
        // unless all n are fair game with this k
        try {
          simpleBinomial(LongMath.biggestSimpleBinomials[k] + 1, k);

   * http://code.google.com/p/smhasher/source/browse/trunk/MurmurHash3.cpp, which contained the
   * following header:
   *
   * MurmurHash3 was written by Austin Appleby, and is placed in the public domain. The author
   * hereby disclaims copyright to this source code.
   */
  static int smear(int hashCode) {
    return C2 * Integer.rotateLeft(hashCode * C1, 15);
  }

    for (int k = 0; k < LongMath.biggestSimpleBinomials.length; k++) {
      assertTrue(LongMath.biggestSimpleBinomials[k] <= LongMath.biggestBinomials[k]);
      long unused = simpleBinomial(LongMath.biggestSimpleBinomials[k], k); // mustn't throw
      if (LongMath.biggestSimpleBinomials[k] < Integer.MAX_VALUE) {
        // unless all n are fair game with this k
        try {
          simpleBinomial(LongMath.biggestSimpleBinomials[k] + 1, k);

   * http://code.google.com/p/smhasher/source/browse/trunk/MurmurHash3.cpp, which contained the
   * following header:
   *
   * MurmurHash3 was written by Austin Appleby, and is placed in the public domain. The author
   * hereby disclaims copyright to this source code.
   */
  static int smear(int hashCode) {
    return C2 * Integer.rotateLeft(hashCode * C1, 15);
  }

/**
 * Factory and utility methods for {@link java.util.concurrent.Executor}, {@link ExecutorService},
 * and {@link java.util.concurrent.ThreadFactory}.
 *
 * @author Eric Fellheimer
 * @author Kyle Littlefield
 * @author Justin Mahoney
 * @since 3.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class MoreExecutors {
  private MoreExecutors() {}

  /**