@Override
                protected SignatureTrustEngine resolveSignatureTrustEngine(final CriteriaSet criteria) {
                    return signatureTrustEngineProvider.build();
                }
<p>buildPopulateSignatureValidationParametersHandler.</p>

@return a {@link MessageHandler} object
@throws ComponentInitializationException if any.
pac4j-saml/src/main/java/org/pac4j/saml/sso/artifact/DefaultSOAPPipelineFactory.java