},
            directExecutor()));
    thingToCancel[0] = serializer.submit(Callables.returning(null), directExecutor());
    results.add(thingToCancel[0]);
    // Enqueue more than enough tasks to force reentrancy.
    for (int i = 0; i < 5; i++) {
      results.add(serializer.submit(Callables.returning(null), directExecutor()));
    }

    manualExecutorTask[0].run();

    for (Future<?> result : results) {

 *
 * Events and sequences of events may be repeated for retries and follow-ups.
 *
 * All event methods must execute fast, without external locking, cannot throw exceptions, attempt
 * to mutate the event parameters, or be re-entrant back into the client. Any IO - writing to files
 * or network should be done asynchronously.
 */
abstract class EventListener {
  /**

        .inTunnel()
        .build(),
    )
    queueDispatcher.enqueue(MockResponse(body = "call2 response"))
    queueDispatcher.enqueue(MockResponse(body = "call1 response"))

    // We use a re-entrant dispatcher to initiate one HTTPS connection while the other is in flight.
    server.dispatcher =
      object : Dispatcher() {
        var requestCount = 0

    val listener: EventListener =
      object : EventListener() {
        override fun requestHeadersStart(call: Call) {
          try {
            // Cancel call from another thread to avoid reentrance.
            cancelLater(call, 0).join()
          } catch (e: InterruptedException) {
            throw AssertionError()
          }
        }
      }

- API Server tracing can now trace re-entrant api requests. ([#103218](https://github.com/kubernetes/kubernetes/pull/103218), [@dashpole](https://github.com/dashpole)) [SIG API Machinery, CLI, Cloud Provider, Cluster Lifecycle and Instrumentation]