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https://issues.apache.org/jira/browse/KARAF-496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035413#comment-13035413
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Jarek Gawor commented on KARAF-496:
-----------------------------------
I committed fixes for this problem to trunk (revision 1124286) and 2.2 branch
(revision 1124287). I updated the jline.console.ConsoleReader to consume the
extra LF character if there is one - much like what BufferedReader does.
> Karaf prompt displayed twice
> ----------------------------
>
> Key: KARAF-496
> URL: https://issues.apache.org/jira/browse/KARAF-496
> Project: Karaf
> Issue Type: Bug
> Components: console
> Affects Versions: 2.1.4, 2.2.0
> Environment: Windows
> Reporter: Jarek Gawor
> Assignee: Jarek Gawor
> Fix For: 2.2.2, 3.0.0
>
>
> When running Karaf on Windows with -Djline.terminal=jline.UnsupportedTerminal
> the Karaf prompt in the console is displayed twice after executing some
> command (i.e. pressing enter).
> I believe the problem is in the jline library in
> ConsoleReader.readLine(InputStream) as the function will return after seeing
> first \r or \n. But on Windows \r\n is used as the EOL and the function does
> not consume the remaining \n.
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