RFR: 8376403: Avoid loading ArrayDeque in java.util.zip.ZipFile

Eirik Bjørsnøs eirbjo at openjdk.org
Mon Jan 26 20:14:36 UTC 2026


Hot on the heals of #29288, this PR replaces `ArrayDeque` with `ArrayList` for the Inflater cache implementation in `ZipFile.CleanableResource`.

With this PR, we change the order of the cache from a LIFO queue to a FIFO stack backed by ArrayList. The order seems unimportant, and has indeed been FIFO in the past when using `java.util.Vector`. Intuitively, it should be better to return the most recently used Inflater.

No tests updated, strict refactoring, `noreg-cleanup`.

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

Commit messages:
 - Replace ArrayDeque with ArrayList

Changes: https://git.openjdk.org/jdk/pull/29430/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29430&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8376403
  Stats: 10 lines in 1 file changed: 0 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/jdk/pull/29430.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29430/head:pull/29430

PR: https://git.openjdk.org/jdk/pull/29430


More information about the core-libs-dev mailing list