This commit constitutes a first pass over the new core retry support.
- Fix code and Javadoc formatting
- Polish/fix Javadoc
- Fix default FixedBackOff configuration in RetryTemplate
- Consistent logging in RetryTemplate
- Fix listener handling in CompositeRetryListener, allowing addListener()
to work
- Polish tests
- Ensure RetryTemplateTests do not take over 30 seconds to execute
See gh-34716