MicroStragey Web Sdk create User Group

UserGroupBean userGroup = WebBeanFactory.getInstance().newUserGroupBean();
                    userGroup.setSessionInfo(MstrSessionManagement.serverSession);
                    userGroup.InitAsNew();
                    userGroup.getUserEntityObject().setFullName(groupName);
                    userGroup.save();
                    Logger.log.info("User Group \"" + groupName + "\" has been created successfully.");
                    userGroupID = userGroup.getObjectID();