* usually include:
 *
 * <ul>
 *   <li>Static methods named {@code of}, accepting an explicit list of elements or entries.
 *   <li>Static methods named {@code copyOf} (or {@code copyOfSorted}), accepting an existing
 *       collection whose contents should be copied.
 *   <li>A static nested {@code Builder} class which can be used to populate a new immutable
 *       instance.
 * </ul>
 *
 * <h4>Warnings</h4>
 *

            if (!properties.containsKey(key)) {
                this.remove(key);
                modified = true;
            }
        }
        // Update existing keys
        for (String key : properties.keySet()) {
            String v = this.get(key);
            List<String> comments = properties.getComments(key);
            List<String> value = properties.getRaw(key);

            if (!properties.containsKey(key)) {
                this.remove(key);
                modified = true;
            }
        }
        // Update existing keys
        for (String key : properties.keySet()) {
            String v = this.get(key);
            List<String> comments = properties.getComments(key);
            List<String> value = properties.getRaw(key);

		// upload to copy back its data from the remote tier. This
		// doesn't replace the existing version, so we don't need to add
		// a free-version.
		xlMeta.AddFreeVersion(fi)
	}

	// indicates if RenameData() is called by healing.
	healing := fi.Healing()

	// Replace the data of null version or any other existing version-id
	_, ver, err := xlMeta.findVersionStr(reqVID)
	if err == nil {

                }
                return true;
            }
            return false;
        }

    }

    /**
     * Migrates existing thumbnail files to the new directory structure.
     */
    public void migrate() {
        new Thread(() -> {
            final Path basePath = baseDir.toPath();
            final String suffix = "." + imageExtention;

 * the network), you should use the non-mutating {@link Network} interface, or an {@link
 * ImmutableNetwork}.
 *
 * <p>You can create an immutable copy of an existing {@code Network} using {@link
 * ImmutableNetwork#copyOf(Network)}:
 *
 * {@snippet :
 * ImmutableNetwork<Integer, MyEdge> immutableGraph = ImmutableNetwork.copyOf(network);
 * }
 *

 * <h3>Extension</h3>
 *
 * If you want a class like {@code FluentFuture} but with extra methods, we recommend declaring your
 * own subclass of {@link ListenableFuture}, complete with a method like {@link #from} to adapt an
 * existing {@code ListenableFuture}, implemented atop a {@link ForwardingListenableFuture} that
 * forwards to that future and adds the desired methods.
 *
 * @since 23.0
 */

 *
 * <p><i>Performance notes:</i>
 *
 * <ul>
 *   <li>If you only access one end of the queue, and do use a maximum size, this class will perform
 *       significantly worse than a {@code PriorityQueue} with manual eviction above the maximum
 *       size. In many cases {@link Ordering#leastOf} may work for your use case with significantly
 *       improved (and asymptotically superior) performance.

### Beta APIs Off by Default

[New beta APIs will not be enabled in clusters by default](https://github.com/kubernetes/enhancements/issues/3136).
Existing beta APIs and new versions of existing beta APIs, will continue to be enabled by default.

### Signing Release Artifacts

  /**
   * Returns an iterator over the URLs in this cache. This iterator doesn't throw
   * `ConcurrentModificationException`, but if new responses are added while iterating, their URLs
   * will not be returned. If existing responses are evicted during iteration, they will be absent
   * (unless they were already returned).
   *
   * The iterator supports [MutableIterator.remove]. Removing a URL from the iterator evicts the