RFR: 8341927: Replace hardcoded security providers with new test.provider.name system property [v6]

[Rajan Halade]

On Wed, 30 Oct 2024 14:48:46 GMT, Matthew Donovan <mdonovan at openjdk.org> wrote:

>> In this PR, I removed hard-coded security providers and replaced them with a system property, test.provider.name. If the property is not specified, the provider originally used in the test is used:
>> 
>> Cipher c = Cipher.getInstance("AES/GCM/NoPadding", System.getProperty("test.provider.name", "SunJCE"));
>
> Matthew Donovan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   updated testing doc per PR comments

Marked as reviewed by rhalade (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/21551#pullrequestreview-2405597496