* default, OkHttp will perform lazy initialization upon the first usage of the cache.
   */
  @Throws(IOException::class)
  fun initialize() {
    cache.initialize()
  }

  /**
   * Closes the cache and deletes all of its stored values. This will delete all files in the cache
   * directory including files that weren't created by the cache.
   */

// dataUsageCacheV2 contains a cache of data usage entries version 2.
type dataUsageCacheV2 struct {
	Info  dataUsageCacheInfo
	Cache map[string]dataUsageEntryV2
}

// dataUsageCacheV3 contains a cache of data usage entries version 3.
type dataUsageCacheV3 struct {
	Info  dataUsageCacheInfo
	Cache map[string]dataUsageEntryV3
}

// dataUsageCacheV4 contains a cache of data usage entries version 4.

    for (LoadingCache<Object, Object> cache : caches()) {
      // don't let the entries get GCed
      List<Entry<Object, Object>> unused = warmUp(cache);
      assertEquals(WARMUP_SIZE, cache.size());
      assertMapSize(cache.asMap(), WARMUP_SIZE);
      checkValidState(cache);
    }
  }

  public void testContainsKey_found() {
    for (LoadingCache<Object, Object> cache : caches()) {
      // don't let the entries get GCed

    for (LoadingCache<Object, Object> cache : caches()) {
      // don't let the entries get GCed
      List<Entry<Object, Object>> unused = warmUp(cache);
      assertEquals(WARMUP_SIZE, cache.size());
      assertMapSize(cache.asMap(), WARMUP_SIZE);
      checkValidState(cache);
    }
  }

  public void testContainsKey_found() {
    for (LoadingCache<Object, Object> cache : caches()) {
      // don't let the entries get GCed

    assertThat(removalListener.getCount()).isEqualTo(1);

    // 2 will be cached
    assertThat(cache.getUnchecked(2)).isEqualTo(2);
    assertThat(cache.asMap().keySet()).containsExactly(2);

    CacheTesting.processPendingNotifications(cache);
    CacheTesting.checkValidState(cache);
    assertThat(removalListener.getCount()).isEqualTo(1);

    // 4 will be cached

  }

  companion object {
    /**
     * Cache control request directives that require network validation of responses. Note that such
     * requests may be assisted by the cache via conditional GET requests.
     */
    @JvmField
    val FORCE_NETWORK = commonForceNetwork()

    /**
     * Cache control request directives that uses the cache only, even if the cached response is

        for (String path : expiredPaths) {
            log.debug("Cleaning up expired directory cache entry: {}", path);
            releaseDirectoryLease(path);
        }
    }

    /**
     * Create SmbFile from cached file info
     *
     * @param directoryPath parent directory path
     * @param fileInfo cached file information
     * @return SmbFile instance
     * @throws IOException on error
     */

        String[] fields = { "cache1", "cache2", "cache3" };
        queryFieldConfig.setCacheResponseFields(fields);

        String[] result = queryFieldConfig.getCacheResponseFields();
        assertSame(fields, result);
    }

    public void test_setCacheResponseFields() {
        String[] fields = { "cache1", "cache2", "cache3" };
        queryFieldConfig.setCacheResponseFields(fields);

            assertSame(cachedOrig, copySubj, "Clone should share the cached Subject reference");

            // Refreshing the original must not clear the clone's cached subject
            orig.refresh();
            // Clone should retain its cached Subject
            assertSame(copySubj, copy.getSubject(), "Clone should retain its cached Subject");
        } else {

        // Step 3: Verify can cache directory listing
        assertTrue(directoryLeaseManager.canCacheDirectoryListing(directoryPath));

        // Step 4: Initially no cached listing
        assertNull(directoryLeaseManager.getCachedDirectoryListing(directoryPath));

        // Step 5: Simulate directory enumeration and update cache
        List<SmbFile> files = Arrays.asList(mockFile1, mockFile2);