Hi,
Starting with commons-cli-1.10.0, HelpFormatter enters an infinite loop
when its is passed a header or footer that contains 2 or more new line
(\n) characters.
The following code shows this behaviour:
final HelpFormatter formatter = HelpFormatter.builder().get();
// OK
formatter.printHelp("CL syntax",
"Header",
Collections.emptyList(),
"Footer",
true);
// KO Header (same behaviour with footer)
formatter.printHelp("CL syntax",
"Header\n\n", // This makes printHelp enter
into an infinite loop
Collections.emptyList(),
"Footer",
true);
It looks like a regression. Using several new line characters with
previous versions of CLI was working.
Even if using new line character in header or footer was forbidden, this
should not end in an infinite loop.
Regards,
Damien Carbonne
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