RFR: 8349151: Refactor test/java/security//cert/CertificateFactory/slowstream.sh to java test [v2]

[Mikhail Yankelevich]

> Refactor test/java/security//cert/CertificateFactory/slowstream.sh to java test

Mikhail Yankelevich has updated the pull request incrementally with one additional commit since the last revision:

  cleanup

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/23394/files
  - new: https://git.openjdk.org/jdk/pull/23394/files/1fc88f2f..396844a4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=23394&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=23394&range=00-01

  Stats: 19 lines in 1 file changed: 11 ins; 4 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/23394.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23394/head:pull/23394

PR: https://git.openjdk.org/jdk/pull/23394