if (employeePackage == null) { employeePackage = getEmployeePackage(); }
  protected void setUp() throws Exception  {    supplierFactoryInstance = SupplierFactory.eINSTANCE;    po1 = supplierFactoryInstance.createPurchaseOrder();    po2 = supplierFactoryInstance.createPurchaseOrder();    supplier1 = supplierFactoryInstance.createSupplier();    supplier2 = supplierFactoryInstance.createSupplier();    customerFactoryInstance = CustomerFactory.eINSTANCE;    customer1 = customerFactoryInstance.createCustomerType();    customer2 = customerFactoryInstance.createCustomerType();    address1 = customerFactoryInstance.createUSAddr();    address2 = customerFactoryInstance.createUSAddr();    credit1 = customerFactoryInstance.createCreditInfo();    credit2 = customerFactoryInstance.createCreditInfo();  }