code: public void setGroupList(java.util.Collection<Group> groupList) {
          if (groupList == null) {
              this.groupList = null;
              return;
          }
  
          this.groupList = new java.util.ArrayList<Group>(groupList);
      }
docs: <p>
  The list of the groups.
  </p>
  
  @param groupList
  The list of the groups.