@Service
public class AccountEndpoint extends WebServiceGatewaySupport {

    private static final Logger logger = Logger.getLogger(String.valueOf(AccountEndpoint.class));

    public AccountEndpoint() {
    }

    public GetAccountResponse getAccount(long accountAgency, long accountNumber) {
        GetAccountRequest request = new GetAccountRequest();
        request.setAccountAgency(accountAgency);
        request.setAccountNumber(accountNumber);

        GetAccountResponse response = (GetAccountResponse)
                getWebServiceTemplate().marshalSendAndReceive(request);

        return response;
    }
}

@Configuration
@ComponentScan(basePackages = {"org.myco.mypro.core"})
public class WebServiceConfig {

    @Bean
    public Jaxb2Marshaller marshaller() throws Exception {
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setContextPath("org.myco.mypro.webservices");
        return marshaller;
    }

    @Bean
    public AccountEndpoint accountEndpoint(Jaxb2Marshaller marshaller) {
        AccountEndpoint client = new AccountEndpoint();
        client.setDefaultUri("http://localhost:11000/ws");
        client.setMarshaller(marshaller);
        client.setUnmarshaller(marshaller);
        return client;
    }
}

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = WebServiceConfig.class)
public class AccountEndpointTest extends TestCase {

    @Autowired
    private AccountEndpoint accountEndpoint;

    public void setUp() throws Exception {
        super.setUp();
    }

    @Test
    public void testGetAccount() throws Exception {

        accountEndpoint.setDefaultUri("http://localhost:11000/ws");
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setContextPath("org.myco.mypro.webservices");
        accountEndpoint.setMarshaller(marshaller);
        accountEndpoint.setUnmarshaller(marshaller);

        GetAccountResponse response = accountEndpoint.getAccount(12, 16);

        assertNotNull(response);
    }
}

org.springframework.ws.soap.client.SoapFaultClientException: could not prepare statement; nested exception is org.hibernate.exception.JDBCConnectionException: could not prepare statement
    at org.springframework.ws.soap.client.core.SoapFaultMessageResolver.resolveFault(SoapFaultMessageResolver.java:38)
    at org.springframework.ws.client.core.WebServiceTemplate.handleFault(WebServiceTemplate.java:826)
    at org.springframework.ws.client.core.WebServiceTemplate.doSendAndReceive(WebServiceTemplate.java:621)
    at org.springframework.ws.client.core.WebServiceTemplate.sendAndReceive(WebServiceTemplate.java:555)
    at org.springframework.ws.client.core.WebServiceTemplate.marshalSendAndReceive(WebServiceTemplate.java:390)
    at org.springframework.ws.client.core.WebServiceTemplate.marshalSendAndReceive(WebServiceTemplate.java:383)
    at org.springframework.ws.client.core.WebServiceTemplate.marshalSendAndReceive(WebServiceTemplate.java:373)
    at org.myco.mypro.core.endpoints.AccountEndpoint.getAccount(AccountEndpoint.java:28)