@Autowired
 public SpringBootVersionService(SpringBootVersionProperties properties) {
   List<RemoteRepository> repositories = properties.resolveRepositories();
   this.dependencyResolver = AetherDependencyResolver.create(false, repositories);
   this.repositoryUrls =
       repositories.stream().map(RemoteRepository::getUrl).collect(Collectors.toList());
 }
 @Cacheable("boot-versions")
 public List<String> fetchBootVersions() {
   try {
     logger.info("Fetching Spring Boot versions from {}", repositoryUrls);
     return dependencyResolver.resolveAvailableVersions("org.springframework.boot", "spring-boot");
   } catch (IOException e) {
     throw new IllegalStateException("Failed to fetch Spring Boot versions", e);
   }
 }