public UserRole getGroupRoles(String groupId) { UserRole role = new UserRole(); if (roles == null) { roles = new HashSet<UserRole>(); role.setGroupId(groupId); roles.add(role); } else { for (UserRole userRole : roles) { if (userRole.getGroupId().equals(groupId)) { role = userRole; break; } } role.setGroupId(groupId); roles.add(role); } return role; }