// returned by these functions must be present in the `Descriptors` list.
	loader       MetricsLoaderFn
	bucketLoader BucketMetricsLoaderFn

	// Cache for all metrics groups. Set via `.SetCache` method.
	cache *metricsCache

	// managed values follow:

	// map of metric descriptors by metric name.
	descriptorMap map[MetricName]MetricDescriptor

  - The disk-cached discovery client is moved from k8s.io/client-go/discovery to k8s.io/client-go/discovery/cached/disk.
The memory-cached discovery client is moved from k8s.io/client-go/discovery/cached to k8s.io/client-go/discovery/cached/memory.
([#72214](https://github.com/kubernetes/kubernetes/pull/72214), [@caesarxuchao](https://github.com/caesarxuchao))

        }).orElse(StringUtil.EMPTY_STRINGS);
    }

    /**
     * Retrieves or creates the result document IDs cache from the session.
     * The cache is implemented as an LRU map to limit memory usage.
     *
     * @param session the HTTP session
     * @return the result document IDs cache map
     */
    private Map<String, String[]> getResultDocIdsCache(final HttpSession session) {

  }

  /**
   * Invoked when a response will be served from the cache or network based on validating the
   * cached Response freshness. Will be followed by cacheHit or cacheMiss after the network
   * Response is available.
   *
   * This event will only be received when a Cache is configured for the client.
   */
  open fun cacheConditionalHit(
    call: Call,
    cachedResponse: Response,
  ) {
  }

If you are not getting cache hits from the build cache, you may be using the wrong version of Java. A fixed version (Java 11) is required to get remote cache hits.

### Building a distribution from source

func (h *Target) Endpoint() string {
	return h.config.Endpoint.String()
}

func (h *Target) String() string {
	return h.config.Name
}

// IsOnline returns true if the target is reachable using a cached value
func (h *Target) IsOnline(ctx context.Context) bool {
	return h.status.Load() == statusOnline
}

// Stats returns the target statistics.
func (h *Target) Stats() types.TargetStats {
	h.logChMu.RLock()

    a bug where a shared connection pool did not guarantee shared connections in some cases.
 *  Fix: Prefer the server's response body on all conditional cache misses. Previously we would
    return the cached response's body if it had a newer `Last-Modified` date.
 *  Fix: Update the stored timestamp on conditional cache hits.
 *  New: Optimized HTTP/2 request header encoding. More headers are HPACK-encoded and string
    literals are now Huffman-encoded.

		t.Fatalf("deserialize LastUpdate mismatch\nwant: %+v\ngot:  %+v", want, got)
	}
	if len(want.Cache) != len(got.Cache) {
		t.Errorf("deserialize mismatch length\nwant: %+v\ngot:  %+v", len(want.Cache), len(got.Cache))
	}
	for wkey, wval := range want.Cache {
		gotv := got.Cache[wkey]
		if !equalAsJSON(gotv, wval) {
			t.Errorf("deserialize mismatch, key %v\nwant: %#v\ngot:  %#v", wkey, wval, gotv)
		}

    protected int count = 1;

    /**
     * Cache for storing crawling configurations to improve performance.
     */
    protected Cache<String, CrawlingConfig> crawlingConfigCache;

    /**
     * Initializes the CrawlingConfigHelper by setting up the crawling configuration cache.
     * This method is called automatically after the bean construction is complete.

     */
    public static final int FILE_WRITE_THROUGH = 0x2;
    /**
     * Access to the file is sequential only
     */
    public static final int FILE_SEQUENTIAL_ONLY = 0x4;
    /**
     * File cannot be cached or buffered at intermediate levels
     */
    public static final int FILE_NO_IMTERMEDIATE_BUFFERING = 0x8;
    /**
     * All operations on the file are performed synchronously with alerts
     */