*
   * <p>Additionally, for mutable sources such as files, a subsequent read may return a different
   * number of bytes if the contents are changed.
   *
   * @since 19.0
   */
  public Optional<Long> sizeIfKnown() {
    return Optional.absent();
  }

  /**

success.upload_bad_word=Uploaded Bad Word file.
success.upload_mapping_file=Uploaded Mapping file.
success.send_testmail=Sent the test mail.
success.job_log_delete_all=Deleted job logs.
success.changed_password=Changed your password.
success.started_data_update=Started data update process.
success.reindex_started=Started reindexing.
success.bulk_process_started=Bulk process is started.

success.upload_bad_word=Uploaded Bad Word file.
success.upload_mapping_file=Uploaded Mapping file.
success.send_testmail=Sent the test mail.
success.job_log_delete_all=Deleted job logs.
success.changed_password=Changed your password.
success.started_data_update=Started data update process.
success.reindex_started=Started reindexing.
success.bulk_process_started=Bulk process is started.

                                && !artifact.getDependencyFilter().include(artifact)) {
                            return null;
                        }

                        // MNG-2861: the artifact data has changed. If the available versions where previously
                        // retrieved, we need to update it.
                        // TODO shouldn't the versions be merged across relocations?

// Package etag provides an implementation of S3 ETags.
//
// Each S3 object has an associated ETag that can be
// used to e.g. quickly compare objects or check whether
// the content of an object has changed.
//
// In general, an S3 ETag is an MD5 checksum of the object
// content. However, there are many exceptions to this rule.
//
// # Single-part Upload
//

            + "the fact that the shadowed ReadLock and WriteLock are never used or "
            + "exposed by the superclass implementation. If the implementation has "
            + "changed, the code must be re-inspected to ensure that the "
            + "assumption is still valid.",
        24,
        ReentrantReadWriteLock.class.getMethods().length);
  }

  private enum MyOrder {
    FIRST,

/**
 * <strong>Warning:</strong> This is an internal utility class that is only public for technical reasons, it is not part
 * of the public API. In particular, this class can be changed or deleted without prior notice.
 *
 */
public class RepositoryUtils {

    private static String nullify(String string) {
        return (string == null || string.isEmpty()) ? null : string;
    }

            + "the fact that the shadowed ReadLock and WriteLock are never used or "
            + "exposed by the superclass implementation. If the implementation has "
            + "changed, the code must be re-inspected to ensure that the "
            + "assumption is still valid.",
        24,
        ReentrantReadWriteLock.class.getMethods().length);
  }

  private enum MyOrder {
    FIRST,

      (a) You must give any other recipients of the Work or
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      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works
          that You distribute, all copyright, patent, trademark, and
          attribution notices from the Source form of the Work,