* Use separate client for leader election in scheduler to avoid starving leader election by regular scheduler operations. ([#53793](https://github.com/kubernetes/kubernetes/pull/53793), [@wojtek-t](https://github.com/wojtek-t))

* Fix metrics API group name in audit configuration ([#53493](https://github.com/kubernetes/kubernetes/pull/53493), [@piosz](https://github.com/piosz))
* Use separate client for leader election in scheduler to avoid starving leader election by regular scheduler operations. ([#53793](https://github.com/kubernetes/kubernetes/pull/53793), [@wojtek-t](https://github.com/wojtek-t))

- Added Coordinated Leader Election as Alpha under the `CoordinatedLeaderElection` feature gate. With the feature enabled, the control plane can use LeaseCandidate objects (coordination.k8s.io/v1alpha1 API group) to participate in a leader election and let the kube-apiserver select the best instance according to some strategy. ([#124012](https://github.com/kubernetes/kubernetes/pull/124012),...

* apply: fix detection of non-dry-run enabled servers ([#71854](https://github.com/kubernetes/kubernetes/pull/71854), [@apelisse](https://github.com/apelisse))
* Scheduler only activates unschedulable pods if node's scheduling related properties change. ([#71551](https://github.com/kubernetes/kubernetes/pull/71551), [@mlmhl](https://github.com/mlmhl))

- kubeadm: fixed ignoring errors when pulling control plane images ([#80529](https://github.com/kubernetes/kubernetes/pull/80529), [@bart0sh](https://github.com/bart0sh))
- Fix a bug in kube-addon-manager's leader election logic that made all replicas active. ([#80575](https://github.com/kubernetes/kubernetes/pull/80575), [@mborsz](https://github.com/mborsz))

- Kubectl explain: when a schema or field includes an externalDocs section, it is now displayed as:
  
  
      EXTERNAL DOCS:
          <description>
          URL: <url>
  
  
  This appears after the DESCRIPTION block for top-level resources and
  after the field description for individual fields. The section is

- The `v1` version of `LeaderMigrationConfiguration` supports only `leases` API for leader election. To use formerly supported mechanisms, please continue using `v1beta1`. ([#108016](https://github.com/kubernetes/kubernetes/pull/108016), [@jiahuif](https://github.com/jiahuif)) [SIG API Machinery and Cloud Provider]

### Bug or Regression

- 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](https://github.com/ahg-g))

* fix typo  ([#59619](https://github.com/kubernetes/kubernetes/pull/59619), [@jianliao82](https://github.com/jianliao82))
    * incase -> in case
    * selction -> selection
* Implement envelope service with gRPC, so that KMS providers can be pulled out from API server. ([#55684](https://github.com/kubernetes/kubernetes/pull/55684), [@wu-qiang](https://github.com/wu-qiang))

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;

/**
 * Static utilities relating to Java reflection.
 *
 * @since 12.0
 */
public final class Reflection {

  /**
   * Returns the package name of {@code clazz} according to the Java Language Specification (section
   * 6.7). Unlike {@link Class#getPackage}, this method only parses the class name, without