[jdk21u-dev] RFR: 8358159: Empty mode/padding in cipher transformations

[Goetz Lindenmaier]

I backport this for parity with 21.0.11-oracle

Needs follow-up.

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Commit messages:
 - Backport 3ff83ec49e561c44dd99508364b8ba068274b63a

Changes: https://git.openjdk.org/jdk21u-dev/pull/2553/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2553&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358159
  Stats: 68 lines in 2 files changed: 62 ins; 0 del; 6 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2553.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2553/head:pull/2553

PR: https://git.openjdk.org/jdk21u-dev/pull/2553