[jira] [Commented] (ROCKETMQ-215) Use java 7 syntax to refator code base

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ROCKETMQ-215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16172734#comment-16172734 ] 

ASF GitHub Bot commented on ROCKETMQ-215:
-----------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/incubator-rocketmq/pull/117


> Use java 7 syntax to refator code base
> --------------------------------------
>
>                 Key: ROCKETMQ-215
>                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-215
>             Project: Apache RocketMQ
>          Issue Type: Improvement
>          Components: rocketmq-broker, rocketmq-namesrv, rocketmq-store
>            Reporter: Jaskey Lam
>            Assignee: yukon
>            Priority: Minor
>
> code base may have some code like 
> {code}
>     private ConcurrentMap<String/* topic@group */, ConcurrentMap<Integer, Long>> offsetTable =
>         new ConcurrentHashMap<String, ConcurrentMap<Integer, Long>>(512);
> {code}
> Atucally, with java7, it can be simplied to 
> {code}
>     private ConcurrentMap<String/* topic@group */, ConcurrentMap<Integer, Long>> offsetTable =
>         new ConcurrentHashMap<>(512);
> {code}
> Which is cleaner. 
> Since rocketmq broker require jdk which is greater or higher than java7, this can be improved.
> But rocketmq client should still remains compatible with jdk 1.6



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