This commit updates license headers for source files residing in
subpackages named `target`.

Closes gh-22634

This commit updates URLs to prefer the https protocol. Redirects are not followed to avoid accidentally expanding intentionally shortened URLs (i.e. if using a URL shortener).

# Fixed URLs

## Fixed Success
These URLs were switched to an https URL with a 2xx status. While the status was successful, your review is still recommended.

* [ ] http://www.apache.org/licenses/ with 1 occurrences migrated to:
  https://www.apache.org/licenses/ ([https](https://www.apache.org/licenses/) result 200).
* [ ] http://www.apache.org/licenses/LICENSE-2.0 with 6515 occurrences migrated to:
  https://www.apache.org/licenses/LICENSE-2.0 ([https](https://www.apache.org/licenses/LICENSE-2.0) result 200).

Closes gh-22564

Closes gh-22504

Closes gh-22409

Closes gh-22426

Closes gh-22405

Closes gh-22325

Closes gh-22359

Fixes gh-22297

Fixes #22307

Fixes #22254

This allows for proper nested type conversion in @Value Optional fields analogous to method parameters, through a new TypeDescriptor-based method in the TypeConverter SPI. As an additional and less involved measure that is worth backporting, DefaultListableBeanFactory defensively checks for pre-converted Optional wrappers.

Issue: SPR-17607

String.indexOf() expressions can be replaced with a call to the String.contains() method available in Java 5 and newer.

Closes gh-2050

Issue: SPR-17565

Replace the full category capped at 36 chars with the class name only
and 1 char per package, e.g. org.apache.commons.Foo -> o.a.c.Foo

Issue: SPR-17592

ResolvableType-based matching consistently respects generic factory method return type (even for pre-initialized raw singleton instance)

Issue: SPR-17524

Issue: SPR-15540

Issue: SPR-17500

Includes JAX-WS 2.3.1, Awaitility 3.1.3, OkHttp 3.12, Woodstox 5.2.

Closes gh-2019

See gh-2019

Issue: SPR-17086

Issue: SPR-17446

Issue: SPR-17374

Issue: SPR-17384