JIRA: https://jira.spring.io/browse/INT-4257
To make a target `ErrorMessage` customizable introduce
`ErrorMessagePublishingRecoveryCallback` and
`ErrorMessageStrategy` to inject
**Cherry-pick to 4.3.x**
Fix `ErrorMessagePublishingRecoveryCallback` generic type for
`RequestHandlerRetryAdvice` compatibility
Polishing
- Support publishing when no retry context is available
- Use a constant for the message context key
Add EnhancedErrorMessage
- contains input message at time of error message generation
- make the default RecovererErrorMessageStrategy public and extensible
Fix `RetryAdviceParserTests` for new `RecoveryCallback` architecture
Rename to `ErrorMessagePublisher`
Decouple ErrorMessagePublisher from Retry
Refactoring for better purpose reflection and JavaDocs
Use `ErrorMessageStrategy` in message producers.
Add JavaDocs to the `DefaultErrorMessageStrategy`
Deprecate EnhancedErrorMessage
Minor Polish for Subclass Use
- make setters final
- allow subclasses to supply the AttributeAccessor
Fix Tests
f7adfc0628