RFR: 8272863: Replace usages of Collections.sort with List.sort call in public java modules [v3]

[Andrey Turbanov]

> Collections.sort is just a wrapper, so it is better to use an instance method directly.

Andrey Turbanov has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5229/files
  - new: https://git.openjdk.java.net/jdk/pull/5229/files/d6dfc8bf..e31936a5

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5229&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5229&range=01-02

  Stats: 21 lines in 10 files changed: 4 ins; 0 del; 17 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5229.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5229/head:pull/5229

PR: https://git.openjdk.java.net/jdk/pull/5229