> As noted in https://bugs.openjdk.org/browse/JDK-8386802, `Util.entryList` and 
> `Util.moduleEntryList` copy their input lists using indexed access. This is 
> fine for `RandomAccess` lists but can be inefficient for 
> sequentially-accessed implementations.
> 
> This patch keeps the existing indexed path for `RandomAccess` lists and falls 
> back to iteration otherwise. Regression coverage is added for 
> non-`RandomAccess` inputs.
> 
> Testing:
> - `make CONF_CHECK=ignore java.base-java images`
> - `make CONF_CHECK=ignore test-only 
> TEST="test/jdk/jdk/classfile/UtilTest.java"`
> - `make CONF_CHECK=ignore test-only TEST="test/jdk/jdk/classfile"`
> - `make CONF_CHECK=ignore test-only TEST="test/jdk:tier1" 
> JTREG="VERBOSE=summary"`
> 
> ---------
> - [x] I confirm that I make this contribution in accordance with the [OpenJDK 
> Interim AI Policy](https://openjdk.org/legal/ai).

April Ivy has updated the pull request incrementally with one additional commit 
since the last revision:

  Use ModuleDesc overload in moduleEntryList

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/31719/files
  - new: https://git.openjdk.org/jdk/pull/31719/files/11c876b0..2553ed9a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=31719&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=31719&range=01-02

  Stats: 2 lines in 1 file changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/31719.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/31719/head:pull/31719

PR: https://git.openjdk.org/jdk/pull/31719

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