Standardisierte RFC 7807 Fehlerantworten mit ProblemDetail und ResponseEntityExceptionHandler

@RestControllerAdvice
public class GlobalApiExceptionHandler extends ResponseEntityExceptionHandler {
 
    @ExceptionHandler(ResourceNotFoundException.class)
    public ProblemDetail handleResourceNotFound(ResourceNotFoundException ex) {
        ProblemDetail problem = ProblemDetail.forStatusAndDetail(
            HttpStatus.NOT_FOUND,
            ex.getMessage()
        );
        problem.setTitle("Resource Not Found");
        problem.setType(URI.create("https://api.example.com/errors/not-found"));
        problem.setProperty("timestamp", Instant.now());
        return problem;
    }
}