RFR: 8365790: Shutdown hook for application image does not work on Windows [v5]

[Alexander Matveev]

On Wed, 17 Sep 2025 15:48:43 GMT, Alexey Semenyuk <asemenyuk at openjdk.org> wrote:

>> Disable the default handling of Ctrl+C in the parent app launcher process to let the child app launcher running JVM handle it. Add corresponding test case.
>> 
>> The new test is crafted to work (skip) in the environment where Ctrl+C signal emitted from the PowerShell script doesn't go through to a child process.
>> 
>> Supplementary changes:
>>  - Added convenience api to CfgFile;
>>  - Fixed `TKit.waitForFileCreated()` function to work correctly when multiple files are monitored in the same directory and to call `close()` on the WatchService instance.
>
> Alexey Semenyuk has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Call close() of a watch service instance

Latest changes looks good.

-------------

Marked as reviewed by almatvee (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/27264#pullrequestreview-3235884435