@NotNull
  public SdkListItem showProjectSdkItem() {
    ProjectSdkItem projectSdkItem = new ProjectSdkItem();
    if (Objects.equals(myProjectSdkItem, projectSdkItem)) return myProjectSdkItem;
    myProjectSdkItem = projectSdkItem;
    syncModel();
    return myProjectSdkItem;
  }
@NotNull
  public SdkListItem showProjectSdkItem()