RFR: 8269827: JMH tests for AES/GCM byte[] and bytebuffers

[Anthony Scarpino]

Hi,

I need a review of these new jmh tests that run AES/GCM encryption and decryption using byte[], heap bytebuffers, and direct bytebuffers as input and output buffers for single and multi-part testing. 

thanks

Tony

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Commit messages:
 - cleanup
 - initial checkin

Changes: https://git.openjdk.java.net/jdk/pull/4672/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4672&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8269827
  Stats: 293 lines in 2 files changed: 293 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4672.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4672/head:pull/4672

PR: https://git.openjdk.java.net/jdk/pull/4672