RFR: 8321139: jlink's man page does not document the --compress option correctly [v3]

[Ana Maria Mihalceanu]

On Fri, 21 Nov 2025 09:40:06 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

>> Ana Maria Mihalceanu has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Remove extra line.
>>  - Align behavior of compression levels to the input received and sync help+documentation messages.
>
> test/jdk/tools/jlink/TaskHelperTest.java line 246:
> 
>> 244:                 new CompressTestCase(new String[] {"--compress=zip-7"}, "zip-7", false),
>> 245:                 new CompressTestCase(new String[] {"--compress=zip-8"}, "zip-8", false),
>> 246:                 new CompressTestCase(new String[] {"--compress=zip-9"}, "zip-9", false)
> 
> I think a few negative tests would also be useful. For example, `-c 3` `--compress=42`, `--compress=zip-`  should all fail.

Thank you for pointing out that part. I pushed a new commit to cover suggested values and more (I followed the previous example on testing for invalid values 😁).

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PR Review Comment: https://git.openjdk.org/jdk/pull/28359#discussion_r2549284063