// Fail fast on a null. We throw NPE here because the contract of Executor states that it throws
    // NPE on null listener, so we propagate that contract up into the add method as well.
    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that

            try {
              lock.lock();
              try {
                if (state() != State.STOPPING) {
                  // This means that the state has changed since we were scheduled. This implies
                  // that an execution of runOneIteration has thrown an exception and we have
                  // transitioned to a failed state, also this means that shutDown has already

# Retorno - Altere o Código de Status { #response-change-status-code }

Você provavelmente leu anteriormente que você pode definir um [Código de Status do Retorno](../tutorial/response-status-code.md){.internal-link target=_blank} padrão.

Porém em alguns casos você precisa retornar um código de status diferente do padrão.

## Caso de uso { #use-case }

Por exemplo, imagine que você deseja retornar um código de status HTTP de "OK" `200` por padrão.

# Response - Change Status Code { #response-change-status-code }

You probably read before that you can set a default [Response Status Code](../tutorial/response-status-code.md){.internal-link target=_blank}.

But in some cases you need to return a different status code than the default.

## Use case { #use-case }

For example, imagine that you want to return an HTTP status code of "OK" `200` by default.

		objInfo.UserTags = tags
	}

	// Add replication status to the object info
	objInfo.ReplicationStatusInternal = fi.ReplicationState.ReplicationStatusInternal
	objInfo.VersionPurgeStatusInternal = fi.ReplicationState.VersionPurgeStatusInternal
	objInfo.ReplicationStatus = fi.ReplicationStatus()
	if objInfo.ReplicationStatus.Empty() { // overlay x-amx-replication-status if present for replicas

        assertNull(transport.getRemoteHostName(), "tconHostName starts null");
        assertEquals(0, transport.getInflightRequests());
        assertEquals(0, transport.getNumSessions());
    }

    @Test
    @DisplayName("isDisconnected / isFailed reflect socket and state")
    void connectionStateChecks() throws Exception {
        // Arrange: simulate connected state and open socket

      field = value
      delegate.dispatcher = value.wrap()
    }

  val port: Int
    get() {
      before() // This implicitly starts the delegate.
      return delegate.port
    }

  val hostName: String
    get() {
      before() // This implicitly starts the delegate.
      return delegate.hostName
    }

  var protocolNegotiationEnabled: Boolean by delegate::protocolNegotiationEnabled

            // from being reused. Otherwise we're still obligated to transmit the request body to
            // leave the connection in a consistent state.
            exchange.noNewExchangesOnConnection()
          }
        }
      } else {
        exchange.noRequestBody()
      }

      if (requestBody == null || !requestBody.isDuplex()) {

		r.errorStatusOnce.Do(func() {
			atomic.AddUint64(&globalStats.errs, 1)
		})
	}
}

// dumpHTTP - dump HTTP request and response.
func (c *Client) dumpHTTP(req *http.Request, resp *http.Response) {
	// Starts http dump.
	_, err := fmt.Fprintln(c.TraceOutput, "---------START-HTTP---------")
	if err != nil {
		return
	}

	// Filter out Signature field from Authorization header.

labels.destinationIndicator=Destination Indicator
labels.user_internationaliSDNNumber=International ISDN Number
labels.internationaliSDNNumber=International ISDN Number
labels.user_state=State
labels.state=State
labels.user_employeeType=Employee Type
labels.employeeType=Employee Type
labels.user_facsimileTelephoneNumber=Facsimile Telephone Number
labels.facsimileTelephoneNumber=Facsimile Telephone Number