AtomicInteger collisions = new AtomicInteger(0);

        // When generating nonces concurrently
        ExecutorService executor = Executors.newFixedThreadPool(threadCount);
        for (int t = 0; t < threadCount; t++) {
            executor.submit(() -> {
                try {
                    for (int i = 0; i < noncesPerThread; i++) {
                        byte[] nonce = context.generateNonce();

          public void onFailure(Throwable t) {}
        };
    addCallback(f, callback, directExecutor());
  }

  private static final class CountingSameThreadExecutor implements Executor {
    int runCount = 0;

    @Override
    public void execute(Runnable command) {
      command.run();
      runCount++;
    }
  }

  private static final class MockCallback implements FutureCallback<String> {

  TFE_DeleteTensorHandle(h0);
  TFE_DeleteTensorHandle(h1);
  TFE_DeleteTensorHandle(h2);

  TFE_Executor* executor = TFE_ContextGetExecutorForThread(ctx);
  TFE_ExecutorWaitForAllPendingNodes(executor, status);
  ASSERT_EQ(TF_GetCode(status), TF_OK) << TF_Message(status);
  TFE_DeleteExecutor(executor);
  TFE_ContextRemoveFunction(ctx, "AddVariablesFunction", status);
  TFE_DeleteContext(ctx);

  TF_DeleteStatus(status);

HSPLandroidx/arch/core/executor/ArchTaskExecutor;-><init>()V
HSPLandroidx/arch/core/executor/ArchTaskExecutor;->getInstance()Landroidx/arch/core/executor/ArchTaskExecutor;
HSPLandroidx/arch/core/executor/DefaultTaskExecutor$1;-><init>(Landroidx/arch/core/executor/DefaultTaskExecutor;)V
HSPLandroidx/arch/core/executor/DefaultTaskExecutor;-><init>()V
HSPLandroidx/arch/core/executor/DefaultTaskExecutor;->isMainThread()Z
HSPLandroidx/arch/core/executor/TaskExecutor;-><init>()V

        new Service() {
          final NoOpService delegate = new NoOpService();

          @Override
          public final void addListener(Listener listener, Executor executor) {
            service1.startAsync();
            delegate.addListener(listener, executor);
          }

          // Delegates from here on down
          @Override
          public final Service startAsync() {

        // triggered only in the second overall run
        and: 'Tracing is provided'
        result.output.contains("""================
Test jvm exited unexpectedly.
Test jvm system exit trace (run: 1)
Gradle Test Executor 1 > AnotherTest6 > someTest
================""")
    }

    def "rerun build fails due to any test failure"() {
        when:
        buildFile.text = """
        plugins {
          id 'java'

    }

    eventListener.canceled(this)
  }

  override fun isCanceled(): Boolean = canceled

  override fun execute(): Response {
    check(executed.compareAndSet(false, true)) { "Already Executed" }

    timeout.enter()
    callStart()
    try {
      client.dispatcher.executed(this)
      return getResponseWithInterceptorChain()
    } finally {
      client.dispatcher.finished(this)
    }
  }

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Futures#transformAsync(ListenableFuture, AsyncFunction, Executor)}.
 *
 * @author Nishant Thakkar
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class FuturesTransformAsyncTest extends AbstractChainedListenableFutureTest<String> {

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Futures#transformAsync(ListenableFuture, AsyncFunction, Executor)}.
 *
 * @author Nishant Thakkar
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class FuturesTransformAsyncTest extends AbstractChainedListenableFutureTest<String> {

Sometimes there's an action required like calling the application layer or responding to a ping, and the thread discovering the action is not the thread that should do the work. We enqueue a runnable on this executor and it gets handled by one of the executor's threads.

### Locks

We have 3 different things that we synchronize on.

#### Http2Connection