.java

public void showCustomerList() {
  AnnotationConfiguration configuration =
    new AnnotationConfiguration("HibersapSessionManager");
  SessionManager sessionManager = configuration.buildSessionManager();
  Session session = sessionManager.openSession();

  try {
    GetCustomerList bapi = new GetCustomerList(50);
    session.execute(bapi);
    printCustomerData(bapi);
  } finally {
    session.close();
  }
}

private void printCustomerData(final GetCustomerList bapi) {
  LOG.debug("Customer:");
  List<Customer> customers = bapi.getCustomers();
  for (Customer customer: customers) {
    LOG.debug(customer.getNumber() + "\t" + customer.getName());
  }

  LOG.debug("Return:");
  List<BapiRet2> returnValues = bapi.getReturnValues();
  for (BapiRet2 value: returnValues) {
    LOG.debug(value.getMessage() + "\t" 
      + value.getNumber() + "\t" 
      + value.getType() + "\t" 
      + value.getId());
  } 
}