public void cleanup() {
    if (!keeperCleanedUp) {
      keeperCleanedUp = true;
      keeper.remove(getProcessorId());
    }
  }
Used to cleanup resources allocated by the processor after we are done using it.

@since GemFire 5.1
geode-core/src/main/java/org/apache/geode/distributed/internal/ReplyProcessor21.java