import com.sun.xml.internal.txw2.TXW; //导入依赖的package包/类
/**
 * Marshal a policy onto the given StaxSerializer.
 *
 * @param model A policy source model.
 * @param writer A Stax serializer.
 * @throws PolicyException If marshalling failed.
 */
private void marshal(final PolicySourceModel model, final StaxSerializer writer) throws PolicyException {
    final TypedXmlWriter policy = TXW.create(model.getNamespaceVersion().asQName(XmlToken.Policy), TypedXmlWriter.class, writer);

    marshalDefaultPrefixes(model, policy);
    marshalPolicyAttributes(model, policy);
    marshal(model.getNamespaceVersion(), model.getRootNode(), policy);
    policy.commit();
}
 

import com.sun.xml.internal.txw2.TXW; //导入依赖的package包/类
protected Schema create(String tns) {
    try {
        Result res = xsdResolver.createOutput(tns, FilePrefix + (fileIndex++) + ".xsd");
        return TXW.create(Schema.class, ResultFactory.createSerializer(res));
    } catch (IOException e) {
        // TODO Auto-generated catch block
        throw new WebServiceException(e);
    }
}