Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Add comprehensive test coverage for Sets utility class which provides
factory methods for creating mock-safe hash sets and regular sets.
Tests cover all three static methods with various scenarios including
mock objects, regular objects, edge cases, and error handling.

- Test newMockSafeHashSet(Iterable<Object>) with various scenarios
- Test newMockSafeHashSet(Object...) with various scenarios
- Test newSet(T...) with various types
- Test edge cases (empty collections, null handling, duplicates)
- Test set operations (add, remove)
- Fix AssertJ null handling by using explicit type casting to avoid NullPointerException

#3773)

Added documentation note explaining that since Java 15, abstract enums
are declared sealed and cannot be mocked. Attempting to return a mock
for such types will throw MockitoException instead of returning null.

Fixes #3285

Bumps [graalvm/setup-graalvm](https://github.com/graalvm/setup-graalvm) from 1.4.4 to 1.4.5.
- [Release notes](https://github.com/graalvm/setup-graalvm/releases)
- [Commits](graalvm/setup-graalvm@v1.4.4...v1.4.5)

---
updated-dependencies:
- dependency-name: graalvm/setup-graalvm
  dependency-version: 1.4.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

…tic methods of java.* classes, as those are primarily internal utilities that will cause non-intuitive changes of methods. This are not invoked for non-static mocks either. Fixes #3778. (#3785)

* Add core API to enable Kotlin singleton mocking

Fixes #3652

* Update implementation - no modifying MockSettings API. Entry point is via MockUtil in the internal package.

* Fix NPE

* Reimplement as mockSingleton API, decouple from static mocking, have docs/tests demonstrate stubbing Java enums

* Update javadocs

* Update wording of MockedSingleton javadoc

---------

Co-authored-by: Joshua Selbo <[email protected]>