RFR: 8318812: LauncherHelper.checkAndLoadMain closes jar file that's about to be re-opened [v3]

[Christian Stein]

On Thu, 15 Feb 2024 08:53:12 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> `String jarname` is filled by the caller with the value of `String what`, and therefore contains the entire path to the executable JAR file. Using only `jarFile.getName()` will prevent any parent directories from being noted in error messages; which might affect some tests
>
>> `String jarname` is filled by the caller with the value of `String what`, and therefore contains the entire path to the executable JAR file. Using only `jarFile.getName()` will prevent any parent directories from being noted in error messages; which might affect some tests
> 
> It returns the path name so I think it does what we want. Do you observe a behavior difference?

No, I don't.

Also double-checked via `JarFile/ZipFile::getName`'s implementation returning the entire path to the JAR file.

Re-running tier1-3 tests just in case...

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PR Review Comment: https://git.openjdk.org/jdk/pull/17843#discussion_r1494762559