private val forbiddenLocks = mutableSetOf<Any>()

  /** The timestamp of the last taken event, used to measure elapsed time between events. */
  private var lastTimestampNs: Long? = null

  /** Confirm that the thread does not hold a lock on `lock` during the callback. */
  fun forbidLock(lock: Any) {
    forbiddenLocks.add(lock)
  }

  /**
   * Removes recorded events up to (and including) an event is found whose class equals [eventClass]

* promote contrib/mesos to incubator ([#33658](https://github.com/kubernetes/kubernetes/pull/33658), [@deads2k](https://github.com/deads2k))

   * Asserts that the given object is non-null, with a better failure message than {@link
   * TestCase#assertNull(String, Object)}.
   *
   * <p>The {@link TestCase} version (which is from JUnit 3) produces a failure message that does
   * not include the value of the object.
   *
   * @since 33.4.0
   */
  public static void assertNull(String message, Object object) {
    assertEquals(message, null, object);
  }

 */
@GwtCompatible
@NullUnmarked
final class UrlEscaperTesting {
  /**
   * Helper to assert common expected behaviour of uri escapers. You should call
   * assertBasicUrlEscaper() unless the escaper explicitly does not escape '%'.
   */
  static void assertBasicUrlEscaperExceptPercent(UnicodeEscaper e) {
    // URL escapers should throw null pointer exceptions for null input
    try {
      e.escape((String) null);

- Linux/arm will not ship in Kubernetes 1.27 as we are running into issues with building artifacts using golang 1.20.2 (please see issue #116492) ([#115742](https://github.com/kubernetes/kubernetes/pull/115742), [@dims](https://github.com/dims)) [SIG Architecture, Release and Testing]

        removeFrom.remove();
        modified = true;
      }
    }
    return modified;
  }

  /**
   * Traverses an iterator and removes every element that does not belong to the provided
   * collection. The iterator will be left exhausted: its {@code hasNext()} method will return
   * {@code false}.
   *
   * @param removeFrom the iterator to (potentially) remove elements from

11914         ; disallowed                             # NA   <reserved-11914>
11915..11916  ; valid                                  # 13.0 DIVES AKURU LETTER NYA..DIVES AKURU LETTER TTA
11917         ; disallowed                             # NA   <reserved-11917>
11918..11935  ; valid                                  # 13.0 DIVES AKURU LETTER DDA..DIVES AKURU VOWEL SIGN E

 * desired per the <a href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingExecutorService}.
 *

import org.jspecify.annotations.Nullable;

/**
 * A {@link FutureTask} that also implements the {@link ListenableFuture} interface. Unlike {@code
 * FutureTask}, {@code ListenableFutureTask} does not provide an overrideable {@link
 * FutureTask#done() done()} method. For similar functionality, call {@link #addListener}.
 *
 * <p>Few users should use this class. It is intended primarily for those who are implementing an

* Use the mounted "/var/run/secrets/kubernetes.io/serviceaccount/token" as the token file for running in-cluster based e2e testing. ([#69273](https://github.com/kubernetes/kubernetes/pull/69273), [@dims](https://github.com/dims))
* Fix panic in kubectl rollout commands ([#69151](https://github.com/kubernetes/kubernetes/pull/69151), [@soltysh](https://github.com/soltysh))