*   <li>A stream is <i>single-use</i>; it becomes invalid as soon as any "terminal operation" such
 *       as {@code findFirst()} or {@code iterator()} is invoked. (Even though {@code Stream}
 *       contains all the right method <i>signatures</i> to implement {@link Iterable}, it does not
 *       actually do so, to avoid implying repeat-iterability.) {@code FluentIterable}, on the other
 *       hand, is multiple-use, and does implement {@link Iterable}.

   * generated type. The method parameters correspond to the generated type's type parameters. For
   * example, if the annotated method returns {@code Map<K, V>}, the method signature should be:
   * {@code Map<K, V> generateMap(K key, V value)}.
   */
  @Target(ElementType.METHOD)
  @Retention(RetentionPolicy.RUNTIME)
  private @interface Generates {}

  /**

func (e metaCacheEntry) hasPrefix(s string) bool {
	return strings.HasPrefix(e.name, s)
}

// matches returns if the entries have the same versions.
// If strict is false we allow signatures to mismatch.
func (e *metaCacheEntry) matches(other *metaCacheEntry, strict bool) (prefer *metaCacheEntry, matches bool) {
	if e == nil && other == nil {
		return nil, true
	}
	if e == nil {
		return other, false
	}

        // Could use certificates, Kerberos, etc.
        return true;  // Simplified
    }
    
    private boolean isValidNotificationSource(WitnessNotification notification) {
        // Validate notification signature/source
        return true;  // Simplified
    }
}
```

## 11. Monitoring and Metrics

### 11.1 Witness Statistics
```java
public class WitnessStatistics {

   * generated type. The method parameters correspond to the generated type's type parameters. For
   * example, if the annotated method returns {@code Map<K, V>}, the method signature should be:
   * {@code Map<K, V> generateMap(K key, V value)}.
   */
  @Target(ElementType.METHOD)
  @Retention(RetentionPolicy.RUNTIME)
  private @interface Generates {}

  /**

				Modified: time.Date(2011, 12, 8, 10, 6, 8, 0, timeZone(0)),
				Mode:     0444,
			},
		},
	},
	{
		// created by Go, before we wrote the "optional" data
		// descriptor signatures (which are required by macOS).
		// Use obscured file to avoid Apple’s notarization service
		// rejecting the toolchain due to an inability to unzip this archive.
		// See golang.org/issue/34986

	askDisks := getListQuorum(o.AskDisks, er.setDriveCount)
	if askDisks == -1 {
		newDisks := getQuorumDisks(disks, infos, (len(disks)+1)/2)
		if newDisks != nil {
			// If we found disks signature in quorum, we proceed to list
			// from a single drive, shuffling of the drives is subsequently.
			disks = newDisks
			askDisks = 1
		} else {
			// If we did not find suitable disks, perform strict quorum listing

blockSize || len(s) > blockSize { return errors.New("invalid signature") } // The parameter block looks like the following for verify: // +--------- // | Signature(R) | // +--------- // | Signature(S) | // +--------- // | Hashed Message | // +--------- // | Public Key X | // +--------- // | Public Key Y | // +--------- // | | // | ... | // | | // +--------- // The common components(signatureR, signatureS, hashed message, public key X, // and public key Y) each takes block size of bytes. The block size is...

   * tryFind(iterable, predicate).or(defaultValue)}.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code
   * stream.filter(predicate).findFirst().orElse(defaultValue)}
   *
   * @since 7.0
   */
  // The signature we really want here is...
  //
  // <T extends @Nullable Object> @JointlyNullable T find(
  //     Iterable<? extends T> iterable,
  //     Predicate<? super T> predicate,
  //     @JointlyNullable T defaultValue);

		return
	}

	// if Content-Length is unknown/missing, deny the request
	size := r.ContentLength
	rAuthType := getRequestAuthType(r)
	switch rAuthType {
	// Check signature types that must have content length
	case authTypeStreamingSigned, authTypeStreamingSignedTrailer, authTypeStreamingUnsignedTrailer:
		if sizeStr, ok := r.Header[xhttp.AmzDecodedContentLength]; ok {
			if sizeStr[0] == "" {