#RestControllerAdvice not scanned - spring

Question

i have looked at 5 tutorials; more than 10 stackoverflow or similar answers but i still haven't resolved that (apparently common) problem.
All i want to achieve is to set a custom JSON upon when exception are thrown on my API. But the Controller advice is never even instantiated (watch breakpoint never crossed.)
Here are the relevant files:
Main class:
package com.bancarelvalentin.plaxdmin
import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
#SpringBootApplication(scanBasePackages = ["com.bancarelvalentin.*"])
class Main
fun main(args: Array<String>) {
runApplication<Main>(*args)
}
Sample controller:
package com.bancarelvalentin.plaxdmin.controller
import com.bancarelvalentin.plaxdmin.playground.CustomException
import org.springframework.http.ResponseEntity
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RequestMapping
import org.springframework.web.bind.annotation.RestController
#RestController
#RequestMapping("/")
class DummyCtrl : PlController() {
#GetMapping
fun throwError(): ResponseEntity<Any> {
throw CustomException()
}
}
Error handler:
package com.bancarelvalentin.plaxdmin.playground;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.ExceptionHandler;ExceptionHandler
import org.springframework.web.bind.annotation.RestControllerAdvice;RestControllerAdvice
import org.springframework.web.servlet.configjava.annotationlang.EnableWebMvc;Exception
#RestControllerAdvice
public class GlobalExceptionHandler {
#ExceptionHandler
public Exceptionfun handleException(Exception ce: Exception): Exception {
return ce;
}
}
application.properties
spring.datasource.url=jdbc:mysql://localhost:3306/plaxdmin
spring.datasource.username=root
spring.datasource.password=root
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.hibernate.ddl-auto=update
Here is what i tried:
Adding other anotation to the main and/or the ErrorHandler class (#EnableWebMvc, #Component, some others i don't remember)
Putting the 3 above files in the same package
turning in and off the white label page
add a scanBasePackages attributes in my main class annotaation