public final class ExecutionSequencer {

  private ExecutionSequencer() {}

  /** Creates a new instance. */
  public static ExecutionSequencer create() {
    return new ExecutionSequencer();
  }

  /** This reference acts as a pointer tracking the head of a linked list of ListenableFutures. */
  private final AtomicReference<ListenableFuture<@Nullable Void>> ref =
      new AtomicReference<>(immediateVoidFuture());

import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Hashing}.
 *
 * <p>TODO(b/33919189): Migrate repeated testing methods to {@link HashTestUtils} and tweak unit
 * tests to reference them from there.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class HashingTest extends TestCase {
  public void testMd5() {

new connections require a fair amount of overhead and added latency. OkHttp will make every effort to reuse existing connections to avoid this overhead and added latency.

Every OkHttpClient uses a connection pool. Its job is to maintain a reference to all open connections. When an HTTP request is started, OkHttp will attempt to reuse an existing connection from the pool. If there are no existing connections, a new one is created and put into the connection pool. For HTTP/2, the connection can...

import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * A helper for concurrency testing. One or more {@code TestThread} instances are instantiated in a
 * test with reference to the same "lock-like object", and then their interactions with that object
 * are choreographed via the various methods on this class.
 *

// Submitted by AWS Security <******@****.***>
// Reference: c35bed18-6f4f-424f-9298-5756f2f7d72b
amplifyapp.com

// AWS App Runner
// Submitted by AWS Security <******@****.***>
// Reference: 6828c008-ba5d-442f-ade5-48da4e7c2316
*.awsapprunner.com

// AWS Cloud9
// Submitted by: AWS Security <******@****.***>
// Reference: 30717f72-4007-4f0f-8ed4-864c6f2efec9

          latch3.countDown()
          try {
            latch4.await()
          } catch (e: InterruptedException) {
            throw AssertionError(e)
          }
        }
      }

    // Get a reference to the connection so we can violently destroy it.
    val connection = AtomicReference<Connection?>()
    val client1 =
      client
        .newBuilder()
        .addNetworkInterceptor(

  }

  /**
   * Returns a function that accepts a supplier and returns the result of invoking {@link
   * Supplier#get} on that supplier.
   *
   * <p>Prefer to use the method reference {@code Supplier::get} instead, though note that it is not
   * serializable unless you explicitly make it {@link Serializable}, typically by writing {@code
   * (Function<Supplier<T>, T> & Serializable) Supplier::get}.
   *

 *       However, the precise conditions for skipping the copy operation are undefined.
 *   <li><b>Warning:</b> a view collection such as {@link ImmutableMap#keySet} or {@link
 *       ImmutableList#subList} may retain a reference to the entire data set, preventing it from
 *       being garbage collected. If some of the data is no longer reachable through other means,

          // Keep looping till we find a non-duplicate value.
          if (!duplicate) {
            lastValue = next;
            return lastValue;
          }
        }

        lastValue = null; // clear reference to unused data
        return endOfData();
      }
    };
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

   * direction," converting empty strings to {@code null}, you can use {@link #emptyToNull}.
   *
   * @param string a string reference to check
   * @return {@code true} if the string is null or is the empty string
   */
  public static boolean isNullOrEmpty(@Nullable String string) {
    return Platform.stringIsNullOrEmpty(string);
  }

  /**