code: @Deprecated
      public List<String> getFiles(GerritQueryHandler gerritQueryHandler) {
          List<String> returned = change.getFiles(gerritQueryHandler);
          if (returned == null) {
              return Collections.emptyList();
          }
          return returned;
      }
docs: Queries gerrit for the files included in this patch set.
  
  @param gerritQueryHandler the query handler, responsible for the queries to gerrit.
  @return a list of files that are part of this patch set.
  
  @deprecated use {@link Change#getFiles(GerritQueryHandler)} instead.