ApiExceptionHandler.java

@RestControllerAdvice
public class ApiExceptionHandler {

    @ExceptionHandler(value = { MethodArgumentTypeMismatchException.class })
    public ErrorResponse handleBadRequest(MethodArgumentNotValidException exception) {
        BindingResult bindingResult = exception.getBindingResult();
        List<String> errors = bindingResult.getAllErrors()
                .stream().map(DefaultMessageSourceResolvable::getDefaultMessage)
                .collect(Collectors.toList());
        return new ErrorResponse(HttpStatus.BAD_REQUEST.value(), exception.getMessage(), errors);
    }

    @ExceptionHandler(value = { HttpMessageNotReadableException.class })
    public ErrorResponse handleMessageNotReadable(HttpMessageNotReadableException exception) {
        return new ErrorResponse(HttpStatus.BAD_REQUEST.value(), "Required request body is missing");
    }

    @ExceptionHandler(value = { NoHandlerFoundException.class })
    public ErrorResponse handleNoHandler(NoHandlerFoundException exception) {
        return new ErrorResponse(HttpStatus.NOT_FOUND.value(), exception.getMessage());
    }

    @ExceptionHandler(value = { ResourceNotFoundException.class })
    public ErrorResponse handleResourceNotFound(ResourceNotFoundException exception) {
        return new ErrorResponse(HttpStatus.NOT_FOUND.value(), exception.getMessage());
    }

    @ExceptionHandler(value = { HttpRequestMethodNotSupportedException.class })
    public ErrorResponse handleMethodNotSupported(Exception exception) {
        return new ErrorResponse(HttpStatus.METHOD_NOT_ALLOWED.value(), exception.getMessage());
    }

    @ExceptionHandler(value = { Exception.class })
    public ErrorResponse handleInternalError(Exception exception) {
        return new ErrorResponse(HttpStatus.INTERNAL_SERVER_ERROR.value(), exception.getMessage());
    }

}