* version of the same domain name would not be considered equal.
   */
  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }

    if (object instanceof InternetDomainName) {
      InternetDomainName that = (InternetDomainName) object;
      return this.name.equals(that.name);
    }

    return false;
  }

  @Override
  public int hashCode() {

   * @param from the source file
   * @param to the destination file
   * @throws IOException if an I/O error occurs
   * @throws IllegalArgumentException if {@code from.equals(to)}
   */
  public static void copy(File from, File to) throws IOException {
    checkArgument(!from.equals(to), "Source %s and destination %s must be different", from, to);
    asByteSource(from).copyTo(asByteSink(to));
  }

  /**

                if (!MediaType.OCTET_STREAM.equals(mediaType)) {
                    return mediaType.getType() + "/" + mediaType.getSubtype();
                }
            }

            final MediaType mediaType = mimeTypes.detect(is == null || is.markSupported() ? is : new BufferedInputStream(is), metadata);
            if (useFilenameOnOctetStream && MediaType.OCTET_STREAM.equals(mediaType)) {

     *
     * @param obj the reference object with which to compare
     * @return true if this object is the same as the obj argument; false otherwise
     */
    @Override
    public boolean equals(final Object obj) {
        return inputStream.equals(obj);
    }

    /**
     * Returns a hash code value for the object.
     *
     * @return a hash code value for this object
     */
    @Override
    public int hashCode() {

                    if (text != null) {
                        docMap.put(hlPrefix + highlightField.getName(), text);
                    }
                });
                if (Constants.TEXT_FRAGMENT_TYPE_HIGHLIGHT.equals(fessConfig.getQueryHighlightTextFragmentType())) {
                    docMap.put(Constants.TEXT_FRAGMENTS,

                final Directive directive = entry.getValue();
                final String ua = directive.getUserAgent();
                int uaLength = 0;
                if (!ALL_BOTS.equals(ua)) {
                    uaLength = ua.length();
                }
                if (uaLength > maxUaLength) {
                    matchedDirective = directive;
                    maxUaLength = uaLength;

    Function<String, @Nullable Integer> function = Functions.forMap(map, null);

    assertEquals((Integer) 1, function.apply("One"));
    assertNull(function.apply("Two"));

    // check basic sanity of equals and hashCode
    new EqualsTester()
        .addEqualityGroup(function)
        .addEqualityGroup(Functions.forMap(map, 1))
        .testEquals();
  }

  @J2ktIncompatible

        }, "scheduledJobBhv");

        ComponentUtil.setFessConfig(new TestFessConfig() {
            @Override
            public boolean isSchedulerTarget(String target) {
                return "all".equals(target);
            }
        });

        int count = crawlJob.getRunningJobCount();
        assertEquals(2, count); // job1 and job3 are running
    }

import com.google.common.collect.ForwardingSet;
import java.util.Set;

/**
 * A subclass of `ForwardingSet` that throws `IllegalStateException` on invocation of any method
 * (except `hashCode` and `equals`) if the provided `Supplier` returns false.
 */
final class InvalidatableSet<E> extends ForwardingSet<E> {
  private final Supplier<Boolean> validator;
  private final Set<E> delegate;

  public int getAndSet(int newValue) {
    int result = value;
    value = newValue;
    return result;
  }

  @Override
  public int hashCode() {
    return value;
  }

  @Override
  public boolean equals(@Nullable Object obj) {
    return obj instanceof Count && ((Count) obj).value == value;
  }

  @Override
  public String toString() {
    return Integer.toString(value);
  }