private @Nullable Sdk lookupProjectSdk(@NotNull IdeaProject ideaProject) {
    String sdkName = ideaProject.getJdkName();
    if (sdkName != null) {
      return resolveSdkByName(sdkName);
    }
    return null;
  }
private @Nullable Sdk lookupProjectSdk(@NotNull IdeaProject ideaProject)