RFR: 8361950: Update to use jtreg 8 [v3]

[Christian Stein]

On Tue, 26 Aug 2025 14:44:29 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.
>
> Christian Stein has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:
> 
>  - Merge branch 'openjdk:master' into JDK-8361950-jtreg-8
>  - Update to use correct library directories
>    
>    See also: https://openjdk.org/jtreg/faq.html#how-do-i-find-the-path-for-the-testng-or-junit-jar-files
>  - 8361950: Set required version to 8+2
>  - 8361950: Update to use jtreg 8

test/jdk/java/security/SignedJar/spi-calendar-provider/TestSPISigned.java line 2:

> 1: /*
> 2:  * Copyright (c) 2022, 2025, Red Hat, Inc.

Restore original line and insert an additional one.

Suggestion:

 * Copyright (c) 2022, Red Hat, Inc.
 * Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.

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

PR Review Comment: https://git.openjdk.org/jdk/pull/26261#discussion_r2301330477