throws AccountNotFoundException, InvalidParameterException {
Debug.print("AccountControllerBean setBeginBalanceTimeStamp");
if (beginBalanceTimeStamp == null)
throw new InvalidParameterException("null beginBalanceTimeStamp");
if (accountId == null)
throw new InvalidParameterException("null accountId" );
if (accountExists(accountId) == false)
throw new AccountNotFoundException(accountId);
account.setBeginBalanceTimeStamp(beginBalanceTimeStamp);