Github user dongeforever commented on the issue:
https://github.com/apache/incubator-rocketmq/pull/20
@shroman could you please resolve the conflicts?
IMO, the return value of flush() and commit(), means whether there is data
left to be flushed or committed, that is OK.
if you'd like to polish the semantic of the returned value, may you do the
same polishing for commit() too, just to keep the same semantic for similar
methods.---
