@ControllerAvice Exception Handler does not work Internal Server Error

Issue

I'm implementing a global Exception Handler with Spring Boot @ControllerAdivce in Kotlin with Gradle

class SensorTypeNotFoundException(message: String) : RuntimeException(message)

if I throw SensorTypeNotFoundException, I have 500 Internal Server Error

I can't understand why Spring Boot doesn't see my ExceptionController.

Can anyone help please?

This is my CustomExceptionController:

@ControllerAdvice
@RestController
class CustomExceptionController {

    private val logger = LoggerFactory.getLogger(javaClass.name)

    enum class ErrorKeys {
        ***
    }

    @ExceptionHandler(Exception::class)
    fun handleException(exception: Exception): ResponseEntity<ExceptionResponse> {
        ***
    }

    private fun createExceptionResponseEntity(exception: Exception): ResponseEntity<ExceptionResponse> {
        ***
        }
    }

    private fun buildResponse(message: String?, errorKey: ErrorKeys, httpStatus: HttpStatus): ResponseEntity<ExceptionResponse> {
        ***
        )

        return ResponseEntity(responseEntity, responseEntity.status)
    }
}

build.gradle.kts:

...
plugins {
    id("org.springframework.boot") version "2.1.6.RELEASE"
    id("io.spring.dependency-management") version "1.0.7.RELEASE"
    kotlin("jvm") version "1.2.71"
    kotlin("plugin.spring") version "1.2.71"
}
...
dependencies {
    implementation("org.springframework.boot:spring-boot-starter-data-mongodb")
    implementation("org.springframework.boot:spring-boot-starter-webflux")
    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
    implementation("org.jetbrains.kotlin:kotlin-reflect")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
    developmentOnly("org.springframework.boot:spring-boot-devtools")
    testImplementation("org.springframework.boot:spring-boot-starter-test")
    testImplementation("io.projectreactor:reactor-test")
}
...

Solution

Thanks for your help, I've solved the problem

The problem was, that in my Controller Class the return value was <List<Any>>, but it should be ResponseEntity<List<Any>>

Answered By - JetBrains