code: public final Operation removeCurrentWriteOp() {
      Operation rv = optimizedOp;
      if (rv == null) {
        rv = writeQ.remove();
      } else {
        optimizedOp = null;
      }
      return rv;
    }
docs: /*
  (non-Javadoc)
  
  @see net.spy.memcached.MemcachedNode#removeCurrentWriteOp()