RFR: 2311: Use getLast and removeLast methods for lists [v2]

[Pavel Rappo]

> Please review this simple refactoring to change most if not all occurrences of `list.get(x.size() - 1)` to `list.getLast()`.
> 
> `getLast` was introduced in JDK 21, as part of JEP 431: Sequenced Collections, which also introduced a counterpart method, `getFirst()`. While there are also a lot of occurrences of `list.get(0)` in Skara codebase, changing them to `list.getFirst()` might be of insufficient benefit and, hence, is not proposed in this PR. I don't think that coinciding `get(0)` and `getLast()` would look inconsistent.
> 
> The copyright years will be updated after this PR has been reviewed.

Pavel Rappo 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 branch 'openjdk:master' into 2311
 - Initial commit

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

Changes:
  - all: https://git.openjdk.org/skara/pull/1665/files
  - new: https://git.openjdk.org/skara/pull/1665/files/ceace51a..9680af96

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=skara&pr=1665&range=01
 - incr: https://webrevs.openjdk.org/?repo=skara&pr=1665&range=00-01

  Stats: 163 lines in 48 files changed: 35 ins; 27 del; 101 mod
  Patch: https://git.openjdk.org/skara/pull/1665.diff
  Fetch: git fetch https://git.openjdk.org/skara.git pull/1665/head:pull/1665

PR: https://git.openjdk.org/skara/pull/1665