code: public static Pair<String, ImageArchiveManifestEntry> findEntryByRepoTagPattern(String repoTagPattern, ImageArchiveManifest manifest) throws PatternSyntaxException {
          return findEntryByRepoTagPattern(repoTagPattern == null ? null : Pattern.compile(repoTagPattern), manifest);
      }
docs: Search the manifest for an entry that has a repository and tag matching the provided pattern.
  
  @param repoTagPattern the repository and tag to search (e.g. busybox:latest).
  @param manifest the manifest to be searched
  @return a pair containing the matched tag and the entry found, or null if no match.