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https://issues.apache.org/jira/browse/ROCKETMQ-208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16034634#comment-16034634
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Jaskey Lam commented on ROCKETMQ-208:
-------------------------------------
Since the problem is found in 3.5.8, and I have checked that the jar downloaded
from
http://mvnrepository.com/artifact/com.alibaba.rocketmq/rocketmq-client/3.5.8 is
indeeded compile by java 8 compiler.
{code}
Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Built-By: alvin
Created-By: Apache Maven 3.3.3
Build-Jdk: 1.8.0_92
{code}
Once the jar is compile by java 8 compiler, problem will be found.
> incompatibility problem found in enviroment of JDK 1.7 when running client
> --------------------------------------------------------------------------
>
> Key: ROCKETMQ-208
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-208
> Project: Apache RocketMQ
> Issue Type: Bug
> Components: rocketmq-broker
> Environment: jdk 1.7
> Reporter: laiyiyu
> Assignee: yukon
>
> when I start the application which dependencies on rmq client 3.5.8 in
> java7, the application throw the exception no such method, causing by the
> ConcurrentHashMap inner class KeySetView of the java8 incompatible with
> the java7;
> so , I think the official use the java8 packing the rmq source code
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