@AfterClass
public static void afterTests() throws Exception {
products.remove(sampleProduct01);
products.remove(sampleProduct02);
products.remove(sampleProduct03);
customers.remove(sampleCustomer);
invoices.remove(sampleInvoice01);
invoices.remove(sampleInvoice02);
invoices.remove(sampleInvoice03);
TwoadwTest.getSingleton().close();
}
