Closes gh-15564

* pr/15562:
  Fix system properties override example

Closes gh-15562

Closes gh-15488

* gh-15550:
  Polish "Stop JtaAutoConfiguration from enabling JtaProperties when not used"
  Stop JtaAutoConfiguration from enabling JtaProperties when not used

Closes gh-15550

See gh-15550

* pr/15473:
  Optimize StringSequence

Closes gh-15473

* pr/15438:
  Polish "Fix StringSequence.equals() for different lengths"
  Replace anonymous inner class with lambda

Closes gh-15438

See gh-15438

Closes gh-15535

This reverts commit f9ce6c9d.

See gh-15505

Closes gh-15532

See gh-15531

See gh-15530

See gh-15529

See gh-15528

Closes gh-15239

Closes gh-15518

Closes gh-15517

Closes gh-15516

Closes gh-15515

Closes gh-15514

Closes gh-15513

Closes gh-15512

Closes gh-15511

Closes gh-15510

Closes gh-15509