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https://issues.apache.org/jira/browse/LOG4J2-3016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17278427#comment-17278427
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Remko Popma commented on LOG4J2-3016:
-------------------------------------
To keep the terminal dumb, but suppress the warnings, see
[https://github.com/jline/jline3/issues/291]
To make your terminal "smart" (get ANSI support), add the JNA jar version >=
5.3.1 or the Jansi jar version >= 1.12 to your classpath.
> Annoying warning messages in test logs from cli module
> ------------------------------------------------------
>
> Key: LOG4J2-3016
> URL: https://issues.apache.org/jira/browse/LOG4J2-3016
> Project: Log4j 2
> Issue Type: Task
> Reporter: Kirill Gusakov
> Priority: Major
>
> {noformat}
> [INFO] Running org.apache.ignite.cli.IgniteCliInterfaceTest
> Feb 03, 2021 11:40:56 PM org.jline.utils.Log logr
> WARNING: Unable to create a system terminal, creating a dumb terminal (enable
> debug logging for more information)
> Feb 03, 2021 11:40:56 PM org.jline.utils.Log logr
> WARNING: Unable to create a system terminal, creating a dumb terminal (enable
> debug logging for more information)
> Feb 03, 2021 11:40:56 PM org.jline.utils.Log logr
> WARNING: Unable to create a system terminal, creating a dumb terminal (enable
> debug logging for more information){noformat}
> JLine spams test logs with messages about dumb terminal. While this warning
> can be helpful during app runs, it should be supressed for test runs.
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