*
 * <p>TODO(b/33919189): Migrate repeated testing methods to {@link HashTestUtils} and tweak unit
 * tests to reference them from there.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class HashingTest extends TestCase {
  public void testMd5() {
    HashTestUtils.checkAvalanche(Hashing.md5(), 100, 0.4);
    HashTestUtils.checkNo2BitCharacteristics(Hashing.md5());

import java.io.Serializable;
import org.jspecify.annotations.Nullable;

/**
 * An immutable hash code of arbitrary bit length.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 * @since 11.0
 */
public abstract class HashCode {
  HashCode() {}

  /** Returns the number of bits in this hash code; a positive multiple of 8. */
  public abstract int bits();

  /**

import java.nio.ByteBuffer;

/**
 * This class generates a CRC32C checksum, defined by RFC 3720, Section 12.1. The generator
 * polynomial for this checksum is {@code 0x11EDC6F41}.
 *
 * @author Kurt Alfred Kluever
 */
@Immutable
final class Crc32cHashFunction extends AbstractHashFunction {
  static final HashFunction CRC_32_C = new Crc32cHashFunction();

  @Override
  public int bits() {
    return 32;
  }

 *
 * <p>TODO(b/33919189): Migrate repeated testing methods to {@link HashTestUtils} and tweak unit
 * tests to reference them from there.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class HashingTest extends TestCase {
  public void testMd5() {
    HashTestUtils.checkAvalanche(Hashing.md5(), 100, 0.4);
    HashTestUtils.checkNo2BitCharacteristics(Hashing.md5());

/**
 * Static utility methods pertaining to {@link Queue} and {@link Deque} instances. Also see this
 * class's counterparts {@link Lists}, {@link Sets}, and {@link Maps}.
 *
 * @author Kurt Alfred Kluever
 * @since 11.0
 */
@GwtCompatible
public final class Queues {
  private Queues() {}

  // ArrayBlockingQueue

  /**

/**
 * Static utility methods pertaining to {@link Queue} and {@link Deque} instances. Also see this
 * class's counterparts {@link Lists}, {@link Sets}, and {@link Maps}.
 *
 * @author Kurt Alfred Kluever
 * @since 11.0
 */
@GwtCompatible
public final class Queues {
  private Queues() {}

  // ArrayBlockingQueue

  /**

 * href="https://docs.google.com/spreadsheets/d/1_q2EVcxA2HjcrlVMbaqXwMj31h9M5-Bqj_m8vITOwwk/">here</a>.
 *
 * @author Kevin Bourrillion
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 * @since 11.0
 */
public final class Hashing {
  /**
   * Returns a general-purpose, <b>temporary-use</b>, non-cryptographic hash function. The algorithm

import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Assert;

/**
 * Various utilities for testing {@link HashFunction}s.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
final class HashTestUtils {
  private HashTestUtils() {}

  /** Converts a string, which should contain only ascii-representable characters, to a byte[]. */
  static byte[] ascii(String string) {

 *   }
 *
 *   @Override
 *   protected Integer doBackward(String s) {
 *     return parseUnsignedInt(s, 16);
 *   }
 * }
 * }
 *
 * @author Mike Ward
 * @author Kurt Alfred Kluever
 * @author Gregory Kick
 * @since 16.0
 */
@GwtCompatible
/*
 * 1. The type parameter is <T> rather than <T extends @Nullable> so that we can use T in the

 * href="https://docs.google.com/spreadsheets/d/1_q2EVcxA2HjcrlVMbaqXwMj31h9M5-Bqj_m8vITOwwk/">here</a>.
 *
 * @author Kevin Bourrillion
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 * @since 11.0
 */
public final class Hashing {
  /**
   * Returns a general-purpose, <b>temporary-use</b>, non-cryptographic hash function. The algorithm