RFR: 8327476: Upgrade JLine to 3.26.1 [v6]

[Magnus Ihse Bursie]

On Fri, 3 May 2024 07:27:09 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:

>> This is a patch that:
>> a) upgrades the JLine inside the JDK to 3.25.1
>> b) since the new version of JLine has a FFM backend, our custom native backends are removed, and replaced with the FFM backend
>> 
>> Some changes had to be made to the original JLine in order to fit into the JDK. Most of them were already done for the previous version (repackaging, avoiding non-ASCII characters, commenting out logging, adding ability to modify to wrap the InputStream used by the terminal), and have only been transferred to the new one. The main two new changes are:
>> - fixes to the FFM backend, so that it works on Linux and JDK 22. These have been proposed to JLine itself: https://github.com/jline/jline3/pull/945
>> - disabling the `NativeFileDescriptorCreator`, as I believe we don't need it, and cannot make it work easily
>> 
>> There's a full patch between the `src/jdk.internal.le/share/classes/jdk/internal/org` and the merged content of the corresponding sources of these original JLine sub-projects:
>> https://github.com/jline/jline3/tree/jline-parent-3.25.1/reader
>> https://github.com/jline/jline3/tree/jline-parent-3.25.1/terminal-ffm
>> https://github.com/jline/jline3/tree/jline-parent-3.25.1/terminal
>> the patch is here:
>> https://cr.openjdk.org/~jlahoda/8327476/jline-3.25.1-upgrade.diff
>> 
>> I've also cleaned the patch a little removing most of the changes for the rename. The result is here:
>> https://cr.openjdk.org/~jlahoda/8327476/jline-3.25.1-upgrade-significant.diff
>
> Jan Lahoda has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Removing trailing whitespace.

Marked as reviewed by ihse (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18142#pullrequestreview-2038354269