public void testAddAllAtIndex_nullSupported() {
    List<E> containsNull = singletonList(null);
    assertTrue("addAll(n, containsNull) should return true", getList().addAll(0, containsNull));
    /*
     * We need (E) to force interpretation of null as the single element of a
     * varargs array, not the array itself
     */
    expectAdded(0, (E) null);
  }

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)

/// tip | Dica

Adicionando o `standard`, o Uvicorn instalará e usará algumas dependências extras recomendadas.

Isso inclui o `uvloop`, a substituição de alto desempenho para `asyncio`, que fornece um grande aumento de desempenho de concorrência.

Quando você instala o FastAPI com algo como `pip install "fastapi[standard]"`, você já obtém `uvicorn[standard]` também.

///

## Execute o Programa Servidor

        } catch (TimeoutException e) {
            // Force lease release if break handling times out
            LeaseEntry entry = leases.get(key);
            if (entry != null) {
                log.warn("Lease break timeout for key: {} on path: {}, falling back to no caching", key, entry.getPath());
                // Force to no caching state
                entry.updateState(Smb2LeaseState.SMB2_LEASE_NONE);

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## Traefik

<a href="https://traefik.io/" class="external-link" target="_blank">Traefik</a> est un reverse proxy/load balancer
haute performance. Il peut faire office de "Proxy de terminaison TLS" (entre autres fonctionnalités).

Il est intégré à Let's Encrypt. Ainsi, il peut gérer toutes les parties HTTPS, y compris l'acquisition et le renouvellement des certificats.

     */
    private void emergencyCloseHandle() {
        try {
            synchronized (this) {
                // Force close the handle
                this.open = false;
                this.usageCount.set(0);

                // Clear mutable references to free memory
                // Note: Some fields may be final and cannot be nulled

                // Clear any other mutable state would go here

/*
 * © 2025 CodeLibs, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of

     * Emergency cleanup method to prevent memory leaks during finalization
     */
    private void emergencyCleanup() {
        try {
            // Force usage count to zero
            this.usageCount.set(0);

            synchronized (this) {
                // Force disconnection
                this.connectionState.set(0);
                this.tid = -1;

                // Clear any cached resources

	return nil
}

// Remove removes tier if it is empty.
func (config *TierConfigMgr) Remove(ctx context.Context, tier string, force bool) error {
	d, err := config.getDriver(ctx, tier)
	if err != nil {
		if errors.Is(err, errTierNotFound) {
			return nil
		}
		return err
	}
	if !force {
		if inuse, err := d.InUse(ctx); err != nil {
			return err
		} else if inuse {
			return errTierBackendNotEmpty
		}

Si los passwords no coinciden, devolvemos el mismo error.

#### Hashing de passwords

"Hacer hash" significa: convertir algún contenido (un password en este caso) en una secuencia de bytes (solo un string) que parece un galimatías.

Siempre que pases exactamente el mismo contenido (exactamente el mismo password) obtienes exactamente el mismo galimatías.

Pero no puedes convertir del galimatías al password.

<div style="text-align: right; margin-right: 10%;">Kabir Khan - <strong>Microsoft</strong> <a href="https://github.com/fastapi/fastapi/pull/26" target="_blank"><small>(ref)</small></a></div>

---