[SpringBoot 3.2.0] Every 404 Exception Error Will Be Route To 500 in @ControllerAdvice

[dimasadryantos]

Problem :

After updating to SpringBoot 3.2.0 everytime 404 NoResourceFoundException happened, it will re-route to 500 error due to default exception handler in @ControllerAdvice.

   @ExceptionHandler
    @ResponseStatus(INTERNAL_SERVER_ERROR)
    fun handleAllOtherExceptions(ex: Exception) {
        log.error(ex) { "exception occurred" }
    }

How to reproduce :

• Clone example project on my Github
• Go to deployment/local and run sh start.sh (it will start docker container locally)
• Run SpringBoot application
• Test using Postman with invalid url : localhost:8100/invalidURI/1
• To simulate success case, remove exception handler code bellow in class RestExceptionHandler:

   @ExceptionHandler
    @ResponseStatus(INTERNAL_SERVER_ERROR)
    fun handleAllOtherExceptions(ex: Exception) {
        log.error(ex) { "exception occurred" }
    }

Expected behaviour

• 404 NoResourceFoundException should not route to 500 error.

[wilkinsona]

Duplicates #38733.