RFR: 8361950: Update to use jtreg 8

Tue Aug 5 16:03:07 UTC 2025

On Fri, 11 Jul 2025 09:05:40 GMT, Christian Stein <cstein at openjdk.org> wrote:

> Please review the change to update to using jtreg 8.
> 
> The primary change is to the `jib-profiles.js` file, which specifies the version of jtreg to use, for those systems that rely on this file. In addition, the requiredVersion has been updated in the various `TEST.ROOT` files.

Both tests seem to make hard assumptions on where binary files of `@library` classes are stored.

- [TestSPISigned.java#L60-L62](https://github.com/openjdk/jdk/blob/master/test/jdk/java/security/SignedJar/spi-calendar-provider/TestSPISigned.java#L60-L62)
- [resexhausted003.java#L83-L96](https://github.com/openjdk/jdk/blob/master/test/hotspot/jtreg/vmTestbase/nsk/jvmti/ResourceExhausted/resexhausted003.java#L83-L96)

The storage location changed due to https://bugs.openjdk.org/browse/CODETOOLS-7902847 - it might change again in the near future. Thus, both tests need to be updated to work correctly without relying on a specific location of compiled library classes.

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PR Comment: https://git.openjdk.org/jdk/pull/26261#issuecomment-3155714592