code: public void setUserList(java.util.Collection<User> userList) {
          if (userList == null) {
              this.userList = null;
              return;
          }
  
          this.userList = new java.util.ArrayList<User>(userList);
      }
docs: <p>
  The list of users.
  </p>
  
  @param userList
  The list of users.