Mój FolderDto
public class FolderDto {
    private int id;
    private String path;

    public FolderDto(int id, String path) {
        this.id = id;
        this.path = path;
    }

    public int getId() {
        return id;
    }

    public String getPath() {
        return path;
    }
}

Mój Response
public class FolderDtoListResponse {
    private List<FolderDto> result = new ArrayList<>();

    public FolderDtoListResponse(List<FolderDto> result) {
        this.result.addAll(result);
    }

    public List<FolderDto> getResult() {
        return result;
    }
}

Wykorzystanie w FolderController

    @RequestMapping(name = "/", method = GET)
    public List<FolderDto> returnFoldersList() {
        return new FolderDtoListResponse(service.getFoldersList());
    }