ASF GitHub Bot commented on FLINK-8596:

Github user zentol commented on the issue:

    E2E test isn't fully working yet, debugging...

> Custom command line code does not correctly catch errors
> --------------------------------------------------------
>                 Key: FLINK-8596
>                 URL: https://issues.apache.org/jira/browse/FLINK-8596
>             Project: Flink
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 1.5.0
>            Reporter: Aljoscha Krettek
>            Assignee: Chesnay Schepler
>            Priority: Blocker
>             Fix For: 1.5.0
> The code that is trying to load the YARN CLI is catching {{Exception}} but if 
> the YARN CLI cannot be loaded a {{java.lang.NoClassDefFoundError}} is thrown: 
> https://github.com/apache/flink/blob/0e20b613087e1b326e05674e3d532ea4aa444bc3/flink-clients/src/main/java/org/apache/flink/client/cli/CliFrontend.java#L1067
> This means that Flink does not work in Hadoop-free mode. We should fix this 
> and also add an end-to-end test that verifies that Hadoop-free mode works.

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