RFR: 8373924: Dangling pointer in ImageDecompressor::image_decompressor_close of imageDecompressor.cpp [v2]

[Henry Jen]

> I don't see image_decompressor_close actually referenced in the code base, as the decompressors are static and setup from image_decompressor_init().
> 
> This PR implements proper cleanup for decompressors to be defensive.

Henry Jen has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge origin/master
 - 8373924: Dangling pointer in ImageDecompressor::image_decompressor_close of imageDecompressor.cpp:90 (ID: 34500)

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/29371/files
  - new: https://git.openjdk.org/jdk/pull/29371/files/a24ab6e1..d8bfef8d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=29371&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=29371&range=00-01

  Stats: 36265 lines in 732 files changed: 20964 ins; 7321 del; 7980 mod
  Patch: https://git.openjdk.org/jdk/pull/29371.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29371/head:pull/29371

PR: https://git.openjdk.org/jdk/pull/29371