30355f243c
Fixes: #9985 Issue link: https://github.com/spring-projects/spring-integration/issues/9985 When `RequestHandlerRetryAdvice` is supplied with a `RetryTemplate` and `MetricsRetryListener`, the `NullPointerException` is thrown from the Micrometer `Timer`, where `name` tag cannot be `null`. In fact, the `RetryCallback` implementation in the `RequestHandlerRetryAdvice` does not provide any `label`. * Fix `RequestHandlerRetryAdvice` to produce label based on the `componentName` or just class name of the AOP caller as fallback **Auto-cherry-pick to `6.4.x` & `6.3.x`**