Andy Palmer

I have the same issue, is it as simple as changing the package [here](https://github.com/spring-cloud/spring-cloud-function/blob/main/spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/config/ContextFunctionCatalogAutoConfiguration.java#L269) to `tools.jackson` ? This blocks upgrading to Spring Boot 4 unfortunately

FWIW I forked the repo and made the suggested change and it works locally in my Kotlin project I'll raise a PR - just jumping through necessary hoops internally