* Use `IntegrationUtils.wrapInHandlingExceptionIfNecessary()` whenever it is possible to avoid double wrapping into the `MessageHandlingException` * Some code polishing for affected classes `@Nullable`, streams, diamonds etc.
* Use `IntegrationUtils.wrapInHandlingExceptionIfNecessary()` whenever it is possible to avoid double wrapping into the `MessageHandlingException` * Some code polishing for affected classes `@Nullable`, streams, diamonds etc.