}

	// Attempting to set a non-existent policy should fail.
	userDN := "uid=dillon,ou=people,ou=swengg,dc=min,dc=io"
	_, err = s.adm.AttachPolicyLDAP(ctx, madmin.PolicyAssociationReq{
		Policies: []string{policy + "x"},
		User:     userDN,
	})
	if err == nil {
		c.Fatalf("should not be able to attach non-existent policy")
	}

	userReq := madmin.PolicyAssociationReq{

* busca el módulo `dependencies` (un archivo imaginario en `app/routers/dependencies.py`)...
* y de él, importa la función `get_token_header`.

Pero ese archivo no existe, nuestras dependencias están en un archivo en `app/dependencies.py`.

Recuerda cómo se ve nuestra estructura de aplicación/archivo:

<img src="/img/tutorial/bigger-applications/package.drawio.svg">

---

    
    SmbFile file = new SmbFile("smb://server/share/test.txt", context);
    
    // Should work even if RDMA provider is not available
    file.createNewFile();
    assertTrue(file.exists());
}
```

## 8. Performance Monitoring

### 8.1 RDMA Statistics
```java
public class RdmaStatistics {
    private final AtomicLong rdmaReads = new AtomicLong();

	//
	// We have to distinguish a explicit config from an implicit. Hence,
	// we unset the env. vars if they are set but empty or contain a path
	// which does not exist. The downside of this check is that if
	// MINIO_KMS_SECRET_KEY_FILE is set to a path that does not exist,
	// the server does not complain and start without a KMS config.
	//
	// Until the container image changes, this behavior has to be preserved.

   *     Corresponds to `FLAG_FIN`.
   * @param flushHeaders true to force flush the response headers. This should be true unless the
   *     response body exists and will be written immediately.
   */
  @Throws(IOException::class)
  fun writeHeaders(
    responseHeaders: List<Header>,
    outFinished: Boolean,
    flushHeaders: Boolean,
  ) {

    for (ClassPath.LocationInfo location :
        ClassPath.locationsFrom(ClassPathTest.class.getClassLoader())) {
      if (!location.file().isDirectory() && location.file().exists()) {
        return location.file();
      }
    }
    throw new AssertionError("Failed to find a jar file");
  }

		if isErrBucketNotFound(err) {
			return batchKeyRotationJobError{
				Code:           "NoSuchSourceBucket",
				Description:    "The specified source bucket does not exist",
				HTTPStatusCode: http.StatusNotFound,
			}
		}
		return err
	}
	if GlobalKMS == nil {
		return errKMSNotConfigured
	}
	if err := r.Encryption.Validate(); err != nil {
		return err
	}

		p := d.Cache[parent.Key()]
		p.addChild(hash)
		d.Cache[parent.Key()] = p
	}
}

// copyWithChildren will copy entry with hash from src if it exists along with any children.
// If a parent is specified it will be added to that if not already there.
// If the parent does not exist, it will be added.
func (d *dataUsageCache) copyWithChildren(src *dataUsageCache, hash dataUsageHash, parent *dataUsageHash) {
	if d.Cache == nil {

     * Copies content from an SmbFile to a File.
     * @param src The source SmbFile.
     * @param dest The destination File.
     */
    private void copy(final SmbFile src, final File dest) {
        if (dest.exists() && !dest.canWrite()) {
            return;
        }
        try (BufferedInputStream in = new BufferedInputStream(new SmbFileInputStream(src));

				}
				break forLoop
			}
		}
	}

	healPath := pathJoin(hip.bucket, hip.objPrefix)
	if hip.clientToken == "" && !hip.forceStart && !hip.forceStop {
		nh, exists := globalAllHealState.getHealSequence(healPath)
		if exists && !nh.hasEnded() && len(nh.currentStatus.Items) > 0 {
			clientToken := nh.clientToken
			if globalIsDistErasure {