Skip to main content

FAQ

Questions and answers about using and debugging Problem4J Spring.

Accessing unregistered HTTP path doesn't return proper response body​

  1. In Spring Boot versions before 3.2.0, Spring WebMVC required setting following property for NoHandlerFoundException to ever be thrown. 
    spring.mvc.throw-exception-if-no-handler-found=true
    See org.springframework.boot.autoconfigure.web.servlet.WebMvcProperties class to debug it yourself.
  2. By default, Spring Boot includes mappings to static resources. If you want to disable them and make Spring return 404 on src/main/resources/static/* (and others), set following property. 
    spring.web.resources.add-mappings=false
    See org.springframework.boot.autoconfigure.web.SpringWebProperties class to debug it yourself.

Messages of jakarta.validation errors are localized​

Property spring.web.locale-resolved default has accept_header, to prioritize Accept header. Consider updating it as it follows.

spring.web.locale=en_US
spring.web.locale-resolver=fixed

See org.springframework.boot.autoconfigure.web.SpringWebProperties class to debug it yourself.