.addEqualityGroup(parse("maximumWeight=15"), parse("maximumWeight=15"))
        .addEqualityGroup(parse("expireAfterAccess=60s"), parse("expireAfterAccess=1m"))
        .addEqualityGroup(parse("expireAfterAccess=60m"), parse("expireAfterAccess=1h"))
        .addEqualityGroup(parse("expireAfterWrite=60s"), parse("expireAfterWrite=1m"))

        .addEqualityGroup(parse("maximumWeight=15"), parse("maximumWeight=15"))
        .addEqualityGroup(parse("expireAfterAccess=60s"), parse("expireAfterAccess=1m"))
        .addEqualityGroup(parse("expireAfterAccess=60m"), parse("expireAfterAccess=1h"))
        .addEqualityGroup(parse("expireAfterWrite=60s"), parse("expireAfterWrite=1m"))

    CacheBuilder.newBuilder().expireAfterAccess(1, NANOSECONDS).build(identityLoader());
    // well, it didn't blow up.
  }

  public void testTimeToIdle_setTwice() {
    CacheBuilder<Object, Object> builder =
        CacheBuilder.newBuilder().expireAfterAccess(3600, SECONDS);
    assertThrows(IllegalStateException.class, () -> builder.expireAfterAccess(3600, SECONDS));
  }

  @GwtIncompatible // Duration

  private boolean isExpired(Timestamped<V> stamped) {
    if ((expireAfterAccess == UNSET_INT) && (expireAfterWrite == UNSET_INT)) {
      return false;
    }

    boolean expireWrite = (stamped.getWriteTimestamp() + expireAfterWrite <= currentTimeNanos());
    boolean expireAccess = (stamped.getAccessTimestamp() + expireAfterAccess <= currentTimeNanos());

    if (expireAfterAccess == UNSET_INT) {
      return expireWrite;
    }

    assertEquals(Integer.valueOf(6), cache.apply(7));
  }

  public void testExpireAfterAccess() {
    final Cache<Integer, Integer> cache =
        CacheBuilder.newBuilder().expireAfterAccess(1000, MILLISECONDS).ticker(fakeTicker).build();

    cache.put(0, 10);
    cache.put(2, 30);

    fakeTicker.advance(999, MILLISECONDS);
    assertEquals(Integer.valueOf(30), cache.getIfPresent(2));

    protected long cacheDuration = 10; // min

    @Resource
    public void init() {
        xpathAPICache =
                CacheBuilder.newBuilder().expireAfterAccess(cacheDuration, TimeUnit.MINUTES).build(new CacheLoader<String, XPathAPI>() {
                    @Override
                    public XPathAPI load(final String key) {
                        if (logger.isDebugEnabled()) {

        filterPathEncoding = fessConfig.getPathEncoding();
        supportedLanguages = fessConfig.getSupportedLanguagesAsArray();
        langItemsCache = CacheBuilder.newBuilder().maximumSize(20).expireAfterAccess(1, TimeUnit.HOURS)
                .build(new CacheLoader<String, List<Map<String, String>>>() {
                    @Override
                    public List<Map<String, String>> load(final String key) throws Exception {