[jdk8u-dev] RFR: 8309138: Fix container tests for jdks with symlinked conf dir

[Severin Gehwolf]

On Mon, 8 Jul 2024 06:58:37 GMT, SendaoYan <syan at openjdk.org> wrote:

> Hi all
> This is backport of JDK-8309138, to fix the testcase bug, which if the tested jdk directory is symlinked, symlinks are followed when copying tested jdk.
> Only change the testcase lib file, the risk is low.
> 
> Additional testing:
> 
> - [x] jdk/test/jdk/internal/platform/docker
> 
> [docker-tests.log](https://github.com/user-attachments/files/16124002/docker-tests.log)

Please include the same change in the Hotspot copy of `DockerTestUtils.java` in this backport.

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Changes requested by sgehwolf (Reviewer).

PR Review: https://git.openjdk.org/jdk8u-dev/pull/538#pullrequestreview-2248360897