RFR: 8340311: JPackage app-image exe launches multiple exe's in JDK 22+ [v4]

[Alexander Matveev]

On Fri, 1 Nov 2024 22:17:21 GMT, Alexey Semenyuk <asemenyuk at openjdk.org> wrote:

>> Support `win.norestart` application property in jpackage .cfg file. If found in the .cfg file and set to `true`, it forces the Windows app launcher not to restart the launcher process.
>> 
>> Collateral changes to the tests:
>>  - Added `WindowsHelper.killProcess()` to kill process by PID;
>>  - Added `WindowsHelper.findAppLauncherPID()` that will return PIDs of the running app launcher processes for the given app launcher name. The implementation grabbed from `Win8301247Test` test;
>>  - Rework `CfgFile` to make it R/W and capable of writing multiple instances of the same key;
>>  - Added `JPackageCommand.ignoreFakeRuntime()` to ignore external runtime if it is a stub. Should speed up local test runs.
>
> Alexey Semenyuk has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Minor cleanup

Looks good.

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Marked as reviewed by almatvee (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21726#pullrequestreview-2410946850