RFR: 8339560: Unaddressed comments during code review of JDK-8337664

[Sean Mullan]

On Wed, 11 Sep 2024 09:07:15 GMT, Fernando Guallini <fguallini at openjdk.org> wrote:

> During the code review of [JDK-8337664](https://bugs.openjdk.org/browse/JDK-8337664), several non-critical comments were raised but not addressed due to time constraints. This PR includes the following changes:
> 
> 1. Symantec and Entrust tests now reuse common code. The Distrust.java class contains this reusable code, making it easier to add new tests for distrusted roots in the future.
> 2. In several instances where an Exception is thrown, it has been replaced with RuntimeException.
> 3. Many Symantec test certs have already expired. To properly test the distrusted scenario, this change wraps the intermediate and root CA certs in NonExpiringTLSServerCert, which does not validate expiration.
> 4. Package structure changed:
> <img width="225" alt="image" src="https://github.com/user-attachments/assets/a8c8407e-edd3-47dd-84c0-19feb9da3c0f">

Looks good.

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Marked as reviewed by mullan (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/20944#pullrequestreview-2326325229