ConversionFailedException: When accessing v3/api-docs

[mychalvlcek]

Describe the bug
When a want to access v3/api-docs, i got following exception

ConversionFailedException: Failed to convert from type [java.lang.String] to type [xxx.xxx.OrderState] for value 'finished'; nested exception is java.lang.IllegalArgumentException: No enum constant xxx.xxx.OrderState.finished

I have following controller where is:

• enum as request parameter (with default value),
• enum has custom mapper dataBinder.registerCustomEditor(OrderState.class, new OrderStateMapper());

@RestController
@RequiredArgsConstructor
class TestController {

    @InitBinder
    public void initBinder(WebDataBinder dataBinder) {
        dataBinder.registerCustomEditor(OrderState.class, new OrderStateMapper());
    }
    
    @GetMapping(value = {"/orders"})
    public Object method(
            @RequestParam(value = "state", defaultValue = "finished") OrderState orderState) {
    }
}

@Getter
@RequiredArgsConstructor
public enum OrderState {
    FINISHED("finished"),
    NEW("new"),
    
    private final String value;
}

public class OrderStateMapper extends PropertyEditorSupport {

    @Override
    public void setAsText(String text) {
        setValue(
                Arrays.stream(OrderState.class.getEnumConstants())
                        .filter(e -> e.getValue().equals(text))
                        .findFirst()
                        .orElseThrow(() -> new MethodArgumentTypeMismatchException(
                                text, OrderState.class, "orderState", null, null)));
    }
}

Expected behavior

• generator should handle enum params with default values (with custom mapper/binder)

[bnasslahsen]

@mychalvlcek,

This will be fixed for the next release.
You have a sample on the test: 60e0512