* worker, and then the first thread's call to delegate.execute() returns. Without this counter,
   * it would observe the QUEUING state and set it to QUEUED, and the worker would never be
   * scheduled again for future submissions.
   */
  @GuardedBy("queue")
  private long workerRunCount = 0;

  @RetainedWith private final QueueWorker worker = new QueueWorker();

  /** Use {@link MoreExecutors#newSequentialExecutor} */

// As we didn't set the env var, we get the default value

Hello World from Python

// But if we create an environment variable first
$ export MY_NAME="Wade Wilson"

// And then call the program again
$ python main.py

// Now it can read the environment variable

Hello Wade Wilson from Python
```

</div>

////

//// tab | Windows PowerShell

<div class="termy">

```console

package cmd

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[storageMetricMakeVolBulk-0]
	_ = x[storageMetricMakeVol-1]
	_ = x[storageMetricListVols-2]
	_ = x[storageMetricStatVol-3]
	_ = x[storageMetricDeleteVol-4]
	_ = x[storageMetricWalkDir-5]

package cmd

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[ErrSTSNone-0]
	_ = x[ErrSTSAccessDenied-1]
	_ = x[ErrSTSMissingParameter-2]
	_ = x[ErrSTSInvalidParameterValue-3]
	_ = x[ErrSTSWebIdentityExpiredToken-4]

### Descargar e Instalar/Ejecutar

Fess 14.17 ya está disponible y se puede descargar en la [página de lanzamientos](https://github.com/codelibs/fess/releases "download"). Las descargas están disponibles en 3 formatos: deb, rpm y zip.

Los siguientes comandos muestran cómo usar la descarga en formato zip:

### Baixar e Instalar/Executar

O Fess 14.17 já está disponível e pode ser baixado na [página de lançamentos](https://github.com/codelibs/fess/releases "download"). As opções de download incluem: deb, rpm, zip.

Os comandos a seguir mostram como usar o download em formato zip:

    $ unzip fess-14.17.x.zip

		leaked := initialSnapShot.CompareCurrentSnapshot()
		// current stack snapshot matches the initial one, no leaks, return.
		if len(leaked) == 0 {
			return
		}
		// wait a test again will deadline.
		if UTCNow().Before(deadline) {
			time.Sleep(leakDetectPauseTimeMs * time.Millisecond)
			continue
		}

```Python
app.dependency_overrides = {}
```

/// tip | Tipp

Wenn Sie eine Abhängigkeit nur während einiger Tests überschreiben möchten, können Sie die Überschreibung zu Beginn des Tests (innerhalb der Testfunktion) festlegen und am Ende (am Ende der Testfunktion) zurücksetzen.

And then they can try again knowing that it's probably something more similar to `stanleyjobsox` than to `johndoe`.

#### A "professional" attack { #a-professional-attack }

 * A unit of work that can be executed one or more times.
 *
 * Recurrence
 * ----------
 *
 * Tasks control their recurrence schedule. The [runOnce] function returns -1L to signify that the
 * task should not be executed again. Otherwise it returns a delay until the next execution.
 *
 * A task has at most one next execution. If the same task instance is scheduled multiple times, the