RFR: 8357466: Create test for Ciphers that are using ByteBuffers backed by MemorySegments [v2]

[Matthew Donovan]

> This PR extends security tests to use ByteBuffers backed by MemorySegments. Tests in the areas of Signature, Cipher, MessageDigest, and Mac are updated.

Matthew Donovan has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:

 - addressed PR comments and refactored to use try-with-resources
 - Merge branch 'master' into cipher-ffm
 - 8357466: Create test for Ciphers that are using ByteBuffers backed by MemorySegments

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Changes: https://git.openjdk.org/jdk/pull/26967/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26967&range=01
  Stats: 507 lines in 14 files changed: 229 ins; 62 del; 216 mod
  Patch: https://git.openjdk.org/jdk/pull/26967.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26967/head:pull/26967

PR: https://git.openjdk.org/jdk/pull/26967