[GitHub] flink issue #6071: [FLINK-3952][runtine] Upgrade to Netty 4.1

[pnowojski]

Github user pnowojski commented on the issue:

    https://github.com/apache/flink/pull/6071
  
    Dead lock visible in failed travis is unrelated to this change 
(https://issues.apache.org/jira/browse/FLINK-9439)


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