private void handleEmpty(boolean calledByCompactor) {
    if (!calledByCompactor) {
      logger.info("Closing {} early since it is empty. It is for disk store {}.",
          new Object[] {parent.getName(), toString()});
    }
    destroy();
  }
Return true if it is possible that compaction of this oplog will be done.
geode-core/src/main/java/org/apache/geode/internal/cache/OverflowOplog.java