*     source-compatible</a> since 4.0)
 */
@GwtCompatible
/*
 * The type parameter is <T> rather than <T extends @Nullable> so that we can use T in the
 * doEquivalent and doHash methods to indicate that the parameter cannot be null.
 */
@SuppressWarnings("UngroupedOverloads")
public abstract class Equivalence<T> {
  /** Constructor for use by subclasses. */
  protected Equivalence() {}

  /**

      return HashBiMap.this.containsKey(o);
    }

    @Override
    public boolean remove(@Nullable Object o) {
      int oHash = Hashing.smearedHash(o);
      int entry = findEntryByKey(o, oHash);
      if (entry != ABSENT) {
        removeEntryKeyHashKnown(entry, oHash);
        return true;
      } else {
        return false;
      }
    }
  }

  @LazyInit private transient Set<V> valueSet;

        try {
            props.load(reader);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Loads the specified file into the {@link Properties} using the given encoding (wraps exception handling).
     *
     * @param props
     *            Property set. Must not be {@literal null}.
     * @param file

        new Equivalence<Object>() {
          @Override
          protected boolean doEquivalent(Object a, Object b) {
            return false;
          }

          @Override
          protected int doHash(Object t) {
            return 0;
          }
        };

    LocalCache<Object, Object> map =
        makeLocalCache(createCacheBuilder().keyEquivalence(testEquivalence));

        super();
    }

    /**
     * Initializes the RelatedQueryHelper after dependency injection is complete.
     * This method is called automatically by the dependency injection framework
     * and loads the initial related query configurations.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }

   *
   * <p>The returned object is serializable if {@code function} is serializable.
   *
   * @param function the function to be used for loading values; must never return {@code null}
   * @return a cache loader that loads values by passing each key to {@code function}
   */
  public static <K, V> CacheLoader<K, V> from(Function<K, V> function) {
    return new FunctionToCacheLoader<>(function);
  }

  /**

     * @param user The user to delete.
     */
    public void delete(final User user) {
        chains().of(stream -> stream.forEach(c -> c.delete(user)));
    }

    /**
     * Loads user information by processing through all authentication chains.
     * @param user The user template containing search criteria.
     * @return The loaded and enriched user information.
     */

     * @param password The new password.
     * @return True if the password was successfully changed, false otherwise.
     */
    boolean changePassword(String username, String password);

    /**
     * Loads user information from the authentication chain.
     * @param user The user template containing search criteria.
     * @return The loaded user, or null if not found.
     */
    User load(User user);

    private int numOfFragments;
    /** The offset for fragment positioning. */
    private int fragmentOffset;

    /**
     * Default constructor that initializes highlighting settings from Fess configuration.
     * Loads default values for type, fragment size, number of fragments, and fragment offset.
     */
    public HighlightInfo() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

import java.io.InputStream;
import java.util.Properties;

import org.codelibs.core.misc.DynamicProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Test implementation of system properties that loads from classpath
 */
public class TestSystemProperties extends DynamicProperties {

    private static final Logger logger = LoggerFactory.getLogger(TestSystemProperties.class);

    public TestSystemProperties() {