[jdk17u-dev] RFR: 8268916: Tests for AffirmTrust roots

[Goetz Lindenmaier]

I backport this for parity with 17.0.10-oracle.

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

Commit messages:
 - Backport 8c1bb2b28066ee32bef22110df06318d938c7d8b

Changes: https://git.openjdk.org/jdk17u-dev/pull/1897/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1897&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8268916
  Stats: 54 lines in 1 file changed: 54 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1897.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1897/head:pull/1897

PR: https://git.openjdk.org/jdk17u-dev/pull/1897