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https://issues.apache.org/jira/browse/CAMEL-23608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen updated CAMEL-23608:
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Affects Version/s: 4.21.0
> camel-jbang - CLI commands leak terminal escape sequences from JLine terminal
> width detection
> ---------------------------------------------------------------------------------------------
>
> Key: CAMEL-23608
> URL: https://issues.apache.org/jira/browse/CAMEL-23608
> Project: Camel
> Issue Type: Bug
> Components: camel-jbang
> Affects Versions: 4.21.0
> Reporter: Claus Ibsen
> Priority: Major
> Fix For: 4.21.0
>
>
> After CAMEL-23237 (PR #22219, commit 5a1a83630622), CLI commands like {{camel
> ps}} leak terminal escape sequences into the shell.
> The output looks like:
> {code}
> PID NAME READY STATUS AGE TOTAL FAIL INFLIGHT
> 89933 circuit-breaker 1/1 Running 2m1s 119 32 0
> ^[[?64;1;2;4;6;17;18;21;22;52c^[[2;1R%
> {code}
> The garbage characters are DA1 (Device Attributes) and CPR (Cursor Position
> Report) responses. {{TerminalWidthHelper.getTerminalWidth()}} creates a JLine
> {{Terminal}} with {{system(true)}} which sends escape sequence queries to the
> terminal. The terminal responds, but the responses arrive after the
> {{Terminal}} is closed and leak into the shell.
> The fix should avoid JLine for simple width detection — use {{COLUMNS}} env
> var or {{stty size}} instead, which do not send escape sequences.
> Introduced in: commit {{5a1a83630622}} / [PR
> #22219|https://github.com/apache/camel/pull/22219] / CAMEL-23237
> File:
> {{dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/common/TerminalWidthHelper.java}}
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