RFR: 8301569: list mode of jmod and jimage cannot be used normally in turkish locale

[Alan Bateman]

On Sun, 29 Jan 2023 15:37:28 GMT, Glavo <duke at openjdk.org> wrote:

> When the default Locale is `tr`, the jmod and jimage commands have the following problems:
> 
> * The jmod command does not correctly recognize the `list` mode typed in lowercase;
> * The jimage command cannot obtain the help information of the `list` mode.

src/jdk.jlink/share/classes/jdk/tools/jimage/JImageTask.java line 214:

> 212:                     try {
> 213:                         log.println(TASK_HELPER.getMessage("main.usage." +
> 214:                                 options.task.toString().toLowerCase(Locale.ROOT)));

This is the lookup of the main.usage.list resource (`jimage list --help`) rather than the `list` option but good to fix this anyway.

src/jdk.jlink/share/classes/jdk/tools/jmod/JmodTask.java line 1474:

> 1472:             String verb = words.get(0);
> 1473:             try {
> 1474:                 options.mode = Enum.valueOf(Mode.class, verb.toUpperCase(Locale.ROOT));

The equivalent in jlink and jimage are using Locale.ENGLISH, I guess we should try to keep them consistent.

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PR: https://git.openjdk.org/jdk/pull/12281