return (ReferenceEntry<K, V>) NullEntry.INSTANCE;
  }

  static final Queue<?> DISCARDING_QUEUE =
      new AbstractQueue<Object>() {
        @Override
        public boolean offer(Object o) {
          return true;
        }

        @CheckForNull
        @Override
        public Object peek() {
          return null;
        }

        @CheckForNull
        @Override

Download a file on a worker thread, and get called back when the response is readable. The callback is made after the response headers are ready. Reading the response body may still block. OkHttp doesn't currently offer asynchronous APIs to receive a response body in parts.

=== ":material-language-kotlin: Kotlin"
    ```kotlin
      private val client = OkHttpClient()

      fun run() {
        val request = Request.Builder()

// Ingress is a collection of rules that allow inbound connections to reach the
// endpoints defined by a backend. An Ingress can be configured to give services
// externally-reachable urls, load balance traffic, terminate SSL, offer name
// based virtual hosting etc.
// DEPRECATED - This group version of Ingress is deprecated by networking.k8s.io/v1beta1 Ingress. See the release notes for more information.
message Ingress {

// 	b: [ 10.10.1.1:309, 10.10.2.2:309 ]
message EndpointSubset {
  // IP addresses which offer the related ports that are marked as ready. These endpoints
  // should be considered safe for load balancers and clients to utilize.
  // +optional
  repeated EndpointAddress addresses = 1;

  // IP addresses which offer the related ports but are not currently marked as ready

    HTTP/2 server, close all but the first connection.
 *  Fix: Fail the HTTP/2 connection if first frame isn't `SETTINGS`.
 *  Fix: Forbid spaces in header names.
 *  Fix: Don't offer to do gzip if the request is partial.
 *  Fix: MockWebServer is now usable with JUnit 5. That update [broke the rules][junit_5_rules].
 *  New: Support `Expect: 100-continue` as a request header. Callers can use this header to

what did the archbishop find?'

  The Mouse did not notice this question, but hurriedly went on,
`"--found it advisable to go with Edgar Atheling to meet William
and offer him the crown.  William's conduct at first was
moderate.  But the insolence of his Normans--"  How are you
getting on now, my dear?' it continued, turning to Alice as it
spoke.

    assertThat(response.header("Content-Encoding")).isEqualTo("gzip")
    assertThat(response.body.source().readByteString()).isEqualTo(
      gzippedBody.snapshot(),
    )

    // The request did not offer gzip support.
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.headers["Accept-Encoding"]).isNull()
  }

  @Test
  fun asyncResponseCanBeConsumedLater() {

- Added `/sys/devices/virtual/powercap` to default masked paths. It avoids the potential security risk that the ability to read these files may offer a power-based sidechannel attack against any workloads running on the same kernel. ([#125970](https://github.com/kubernetes/kubernetes/pull/125970), [@carlory](https://github.com/carlory))

- The `controller.kubernetes.io/pod-deletion-cost` annotation can be set to offer a hint on the cost of deleting a `Pod` compared to other pods belonging to the same ReplicaSet. Pods with lower deletion cost are deleted first. This is an alpha feature. ([#99163](https://github.com/kubernetes/kubernetes/pull/99163), [@ahg-g](htt...

### Bug or Regression

- Add `/sys/devices/virtual/powercap` to default masked paths. It avoids the potential security risk that the ability to read these files may offer a power-based sidechannel attack against any workloads running on the same kernel. ([#125970](https://github.com/kubernetes/kubernetes/pull/125970), [@carlory](https://github.com/carlory)) [SIG Node]