@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "RV_RETURN_VALUE_IGNORED_BAD_PRACTICE",
      justification = "Best effort attempt to delete a GFS file without any samples.")
  private static void deleteFileIfPossible(File file) {
    file.delete();
  }
Closes the statArchiver by flushing its data to disk a closing its output stream.

@throws GemFireIOException if the archive file could not be closed.
geode-core/src/main/java/org/apache/geode/internal/statistics/StatArchiveWriter.java