Fix Request: AvoidSaajSoapMessaging

[jborgers]

Reported:
The rules tells us to use AxiomSoapMessageFactory instead of SaajSoapMessageFactory. But, AxiomSoapMessageFactory has been removed from spring-ws.

The rule still gives valid advice, namely to use a system property to prevent TransformerFactoryImpl from scanning the classpath for every call. But, the advice to use Axiom is no longer valid, so better to remove that.

[jborgers]

When solved, the violation can be suppressed. However, since it is on an import statement, the preferred way of suppressing with @SuppressWarnings does not work. Change to violate on its use instead, with a constructor or so.

Suppression is possible like:
import org.springframework.ws.soap.saaj.SaajSoapMessage; //NOSONAR //NOPMD - suppressed AvoidSaajSoapMessaging - TODO explain reason for suppression like: we added proper system properties to solve this

[jborgers]

In the code example we should add the possibility to set the properties programmatically. This might be a better solution in many cases.