RFR: 8359956: Support algorithm constraints and certificate checks in SunX509 key manager [v11]

[Artur Barashev]

> SunX509 key manager should support the same certificate checks that are supported by PKIX key manager.
> 
> Effectively there should be only 2 differences between 2 key managers:
> - PKIX supports multiple key stores through KeyStore.Builder interface while SunX509 supports only a single keystore.
> - SunX509 caches its whole key store on initialization thus improving performance. This means that subsequent modifications of the KeyStore have no effect on SunX509 KM, unlike PKIX .
> 
> **SUNX509 KeyManager performance before the change**
> Benchmark                                    (resume)  (tlsVersion)   Mode  Cnt      Score     Error  Units
> SSLHandshake.doHandshake      true       TLSv1.2  thrpt   15  19758.012 ± 758.237  ops/s
> SSLHandshake.doHandshake      true           TLS  thrpt   15   1861.695 ±  14.681  ops/s
> SSLHandshake.doHandshake     false       TLSv1.2  thrpt   15   **1186.962** ±  12.085  ops/s
> SSLHandshake.doHandshake     false           TLS  thrpt   15   **1056.288** ±   7.197  ops/s
> 
> **SUNX509 KeyManager performance after the change**
> Benchmark                 (resume)  (tlsVersion)   Mode  Cnt      Score     Error  Units
> SSLHandshake.doHandshake      true       TLSv1.2  thrpt   15  20954.399 ± 260.817  ops/s
> SSLHandshake.doHandshake      true           TLS  thrpt   15   1813.401 ±  13.917  ops/s
> SSLHandshake.doHandshake     false       TLSv1.2  thrpt   15   **1158.190** ±   6.023  ops/s
> SSLHandshake.doHandshake     false           TLS  thrpt   15   **1012.988** ±  10.943  ops/s

Artur Barashev has updated the pull request incrementally with one additional commit since the last revision:

  Add more unit test cases. Some code tweaks.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/25016/files
  - new: https://git.openjdk.org/jdk/pull/25016/files/c5e381ec..3edca307

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25016&range=10
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25016&range=09-10

  Stats: 72 lines in 2 files changed: 25 ins; 15 del; 32 mod
  Patch: https://git.openjdk.org/jdk/pull/25016.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25016/head:pull/25016

PR: https://git.openjdk.org/jdk/pull/25016