[jdk8u-dev] RFR: 8335894: [8u] Fix SupplementalJapaneseEraTest.java for jdks with symlinked conf dir

[SendaoYan]

On Mon, 8 Jul 2024 15:31:07 GMT, SendaoYan <syan at openjdk.org> wrote:

> Hi all,
> Fix the testcase bug, which if the tested jdk directory is symlinked, symlinks are followed when copying tested jdk.
> This is similar to [JDK-8309138](https://bugs.openjdk.org/browse/JDK-8309138).
> Only change the testcase, the change has been verified, no risk.

The GHA report several failures.

1. Some failures are CA issues, which is fixing by [PR256](https://github.com/openjdk/jdk8u-dev/pull/526). It's unrelated to this PR.


security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java#digicerttlseccrootg5
security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java#digicerttlsrsarootg5
security/infra/java/security/cert/CertPathValidator/certification/CAInterop.java#quovadisrootca1g3


2. Linux x86  `gc/concurrentMarkSweep/SystemGCOnForegroundCollector.java` report [crash](https://github.com/sendaoYan/jdk8u-dev-ysd/actions/runs/9836796651/job/27154077313) `CompactibleFreeListSpace::block_size(HeapWord const*)`, which has been recorded by [JDK-8303159](https://bugs.openjdk.org/browse/JDK-8303159), it's unrelated to this PR.
3. MacOS build fail, the GHA doesn't show any fail logs, maybe it's enviromental issue, or GHA can't pick up MacOS runner.

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PR Comment: https://git.openjdk.org/jdk8u-dev/pull/542#issuecomment-2228740187