* Fix NPE during encoding and add regression test for issue 9507.
(cherry picked from commit 58e320a732)
* Implement `respond_to?` in RubyMessage (#9677)
All synthetic methods implemented by `method_missing` are now supported by `respond_to?`.
Fixes issue #9202.
* Fix null pointer exceptions exposed by new regression tests.
* Fix clear_ on oneofs so that it is safe to call repeatedly and so that respond_to? does not depend on whether the oneof is currently cleared.
* Code cleanup: reenable more tests on JRuby.
* Align JRuby behavior with CRuby by throwing a RuntimeError when attempting to assign to a oneof.
(cherry picked from commit 8e7f936696)
* Update protobuf version
* Merge pull request #9727 from mlocati/build-packaged-php-extension
Fix building packaged PHP extension
(cherry picked from commit 7f9901c5f6)
* Update protobuf version
* Update changelogs for 3.20.1-rc1
Co-authored-by: Jason Lunn <jason.lunn@gmail.com>
Co-authored-by: Jorg Brown <jorg.brown@gmail.com>
