/**
  * Returns the {@link UserManagement}.
  *
  * @return Returns the {@link UserManagement}.
  */
 private UserManagement getUserManagement() {
   return ServiceLocator.instance().getService(UserManagement.class);
 }
 /**
  * Returns the {@link BlogManagement}.
  *
  * @return Returns the {@link BlogManagement}.
  */
 private BlogManagement getTopicManagement() {
   return ServiceLocator.instance().getService(BlogManagement.class);
 }