Hello, I'm attempting to change Java 8 code to Kotlin, which includes changing field-based injection to constructor-based injection, but Spring is throwing me errors about missing default constructors. This isn't exactly a problem Kotlin specifically because it also fails when trying in Java, but maybe there's a trick to it that someone here knows. (Spring 4.2.6, Spring Boot 1.3.5)

@minus : are the constructor based injections annotated with

@Autowired

in kotlin yes, in java it complained that @Autowired wasn't allowed with parameters

did you added the

constructor

keyword as explained here https://kotlinlang.org/docs/reference/annotations.html#usage ?

ah yep, putting the annotation on the constructor instead of with the args (no compiler error on kotlin?) makes it work, thanks, @agomez @nayanjyoti

@Autowired

on constructors is not required since latest versions of Spring try without 🙂

@nfrankel it will require an upgrade to spring 4.3

@nerses ok