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https://issues.apache.org/jira/browse/CLI-353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gary D. Gregory resolved CLI-353.
---------------------------------
Fix Version/s: 1.10.1
Resolution: Duplicate
This is duplicate of CLI-351
Please search before creating a ticket.
> HelpFormatter.printHelp() hangs with multiline strings
> ------------------------------------------------------
>
> Key: CLI-353
> URL: https://issues.apache.org/jira/browse/CLI-353
> Project: Commons CLI
> Issue Type: Bug
> Components: CLI-1.x
> Affects Versions: 1.10.0
> Reporter: Hari Nair
> Priority: Minor
> Fix For: 1.10.1
>
>
> If the header or footer is a multi-line String that ends with a blank line,
> printHelp() will hang.
> {code:java}
> StringBuilder help = new StringBuilder();
> TextHelpAppendable tha = new TextHelpAppendable(help);
> org.apache.commons.cli.help.HelpFormatter formatter =
> org.apache.commons.cli.help.HelpFormatter.builder()
> .setHelpAppendable(tha)
> .get();
> try {
> formatter.printHelp(
> String.format("%s [options]",
> this.getClass().getSimpleName()),
> """
> header""",
> formatter.sort(options),
> """
> footer""",
> false);
> return help.toString();
> } catch (IOException e) {
> throw new RuntimeException(e);
> }
> {code}
> This will work; adding a blank line to the end of header or footer will cause
> printHelp() to hang:
> {code:java}
> formatter.printHelp(
> String.format("%s [options]",
> this.getClass().getSimpleName()),
> """
> header
> """,
> formatter.sort(options),
> """
> footer""",
> false);
> {code}
> This did not happen with 1.9.0.
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