| `minio_notification_events_errors_total`      | Total number of events that failed to send to the targets. <br><br>Type: counter                      | `server` |
| `minio_notification_events_sent_total`        | Total number of events sent to the targets. <br><br>Type: counter                                     | `server` |

import org.apache.maven.profiles.ProfileManager;
import org.apache.maven.properties.internal.EnvironmentUtils;
import org.apache.maven.repository.RepositorySystem;
import org.apache.maven.wagon.events.TransferListener;

/**
 */
@Deprecated
@Named
@Singleton
public class DefaultMavenProjectBuilder implements MavenProjectBuilder {

    @Inject
    private ProjectBuilder projectBuilder;

До этого поддержка асинхронного кода была реализована намного сложнее, и его было труднее воспринимать.

В предыдущих версиях Python для этого использовались потоки или <a href="https://www.gevent.org/" class="external-link" target="_blank">Gevent</a>. Но такой код намного сложнее понимать, отлаживать и мысленно представлять.

Что касается JavaScript (в браузере и NodeJS), раньше там использовали для этой цели

import jcifs.CIFSException;
import jcifs.Credentials;
import jcifs.RuntimeCIFSException;
import jcifs.audit.SecurityAuditLogger;
import jcifs.audit.SecurityAuditLogger.EventType;
import jcifs.audit.SecurityAuditLogger.Severity;
import jcifs.spnego.NegTokenInit;
import jcifs.util.Crypto;
import jcifs.util.SecureKeyManager;
import jcifs.util.Strings;

/**
 * This class stores and encrypts NTLM user credentials.
 *

        try {
          assertEquals(p + "/" + q, p, IntMath.divide(p, q, UNNECESSARY) * q);
          assertTrue(p + "/" + q + " not expected to divide evenly", dividesEvenly);
        } catch (ArithmeticException e) {
          assertFalse(p + "/" + q + " expected to divide evenly", dividesEvenly);
        }
      }
    }
  }

  public void testZeroDivIsAlwaysZero() {
    for (int q : NONZERO_INTEGER_CANDIDATES) {

.form-check-input {\n  margin-right: -2.5em;\n  margin-left: 0;\n}\n\n.form-check-inline {\n  display: inline-block;\n  margin-right: 1rem;\n}\n\n.btn-check {\n  position: absolute;\n  clip: rect(0, 0, 0, 0);\n  pointer-events: none;\n}\n.btn-check[disabled] + .btn, .btn-check:disabled + .btn {\n  pointer-events: none;\n  filter: none;\n  opacity: 0.65;\n}\n\n[data-bs-theme=dark] .form-switch .form-check-input:not(:checked):not(:focus) {\n  --bs-form-switch-bg: url(\"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg'...

   */
  void insertEntry(
      int entryIndex, @ParametricNullness K key, @ParametricNullness V value, int hash, int mask) {
    this.setEntry(entryIndex, CompactHashing.maskCombine(hash, UNSET, mask));
    this.setKey(entryIndex, key);
    this.setValue(entryIndex, value);
  }

  /** Resizes the entries storage if necessary. */

Mas antes disso, controlar código assíncrono era bem mais complexo e difícil.

Nas versões anteriores do Python, você poderia utilizar threads ou <a href="http://www.gevent.org/" class="external-link" target="_blank">Gevent</a>. Mas o código é bem mais complexo de entender, debugar, e pensar sobre.

Nas versões anteriores do NodeJS / Navegador JavaScript, você utilizaria "callbacks". O que leva ao "inferno do callback".

    server.requireClientAuth()
    val call = client.newCall(Request.Builder().url(server.url("/")).build())
    assertFailsWith<IOException> {
      call.execute()
    }

    // Observed Events are variable
    // JDK 14
    // CallStart, ProxySelectStart, ProxySelectEnd, DnsStart, DnsEnd, ConnectStart, SecureConnectStart,
    // SecureConnectEnd, ConnectEnd, ConnectionAcquired, RequestHeadersStart, RequestHeadersEnd,

    private static final int DEFAULT_WITNESS_PORT = 135; // RPC endpoint mapper

    /**
     * Interface for receiving witness notifications and registration events.
     */
    public interface WitnessNotificationListener {
        /**
         * Called when a witness notification is received.
         *
         * @param notification the witness notification
         */