RFR: 8344882: (bf) Temporary direct buffers should not count against the upper limit on direct buffer memory [v2]

[Brian Burkhalter]

> Make the memory used by internal temporary direct buffers not count towards the upper limit on direct buffer memory.

Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:

  8344882: Do not create Cleaner for temporary buffers

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22339/files
  - new: https://git.openjdk.org/jdk/pull/22339/files/5640acb7..b68ee5f0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22339&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22339&range=00-01

  Stats: 15 lines in 2 files changed: 2 ins; 2 del; 11 mod
  Patch: https://git.openjdk.org/jdk/pull/22339.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22339/head:pull/22339

PR: https://git.openjdk.org/jdk/pull/22339