[jdk17u-ri] RFR: 8297878: KEM: Implementation

Thu Apr 18 14:47:54 UTC 2024

This is the KEM API backport to JDK 17u.

The `src` files are identical to those in the current `jdk` repo except for the change made to `KEM.java` at https://github.com/openjdk/jdk/commit/59c2aff1edffb66762bbbe5e310913f87953be5b#diff-7bee547996d0de5692181a509bdf509276c7eb9351722580fd6aee7975745e67.

The `RSA_KEM` code is modified because `DerOutputStream` lacks several methods in JDK 17.

`Proc` is updated like in JDK 21 to support for some internal interop testing. The test files for `Proc` are also backported.

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Commit messages:
 - the implementation

Changes: https://git.openjdk.org/jdk17u-ri/pull/1/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-ri&pr=1&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297878
  Stats: 1774 lines in 9 files changed: 1760 ins; 3 del; 11 mod
  Patch: https://git.openjdk.org/jdk17u-ri/pull/1.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-ri.git pull/1/head:pull/1

PR: https://git.openjdk.org/jdk17u-ri/pull/1