final CertificateValidationProvider validationProvider = new PKIXCertificateValidationProvider(trustStore, false, intermediateCertsAndCRLStore);

 try
        {
            // Certificates to be used to build the certification path.
            // - The other certificates from the signature (e.g. from KeyInfo).
            if (otherCerts != null)
            {
                CollectionCertStoreParameters ccsp = new CollectionCertStoreParameters(otherCerts);
                CertStore othersCertStore = CertStore.getInstance("Collection", ccsp);
                builderParams.addCertStore(othersCertStore);
            }
            // - The external certificates/CRLs.
            for (int i = 0; i < intermCertsAndCrls.length; i++)
            {
                builderParams.addCertStore(intermCertsAndCrls[i]);
            }

            builderParams.setRevocationEnabled(revocationEnabled);
            builderParams.setMaxPathLength(maxPathLength);
            builderParams.setDate(validationDate);
            builderParams.setSigProvider(this.signatureProvider);

            ---->>>> builderRes = (PKIXCertPathBuilderResult) certPathBuilder.build(builderParams);
        }
        catch (CertPathBuilderException ex)
        {
            ---->>>> throw new CannotBuildCertificationPathException(certSelector, ex.getMessage(), ex);
        }

 // 1. Подписанный документ.
        final Document verifyDocument = signedMessage.getSOAPPart().getEnvelope().getOwnerDocument();

        // Узел с подписью (предположительно, один).
        final NodeList nl = verifyDocument.getElementsByTagNameNS(XMLSignature.XMLNS, "Signature");

        if (nl.getLength() == 0) {
            throw new Exception("Cannot find Signature element");
        } // if

        // 2. Сертификаты.

        // Хранилище корневых сертификатов.
        final KeyStore trustStore = GostXAdESUtility.
                loadCertStore("F:/work/GISGMPstuff/forum_xades/data/xadesTrustStore", "1".toCharArray());

        final CertStore intermediateCertsAndCRLStore = CertStore.getInstance("Collection",
                new CollectionCertStoreParameters(Collections.emptyList()));

        final CertificateValidationProvider validationProvider = new PKIXCertificateValidationProvider(trustStore, false, intermediateCertsAndCRLStore);

        final XadesVerificationProfile verProf = new XadesVerificationProfile(validationProvider)

                // time-stamp validation
                .withTimeStampTokenVerifier(new GostTimeStampVerificationProvider(
                        validationProvider,  XAdESConfig.CONFIG_2001_S.getDefaultProvider()))

                        // digest
                .withDigestEngineProvider(new DefaultMessageDigestProvider() {

                    @Override
                    public MessageDigest getEngine(String digestAlgorithmURI) throws UnsupportedAlgorithmException {

                        final String digestAlgOid = GostXAdESUtility.digestUri2Digest(digestAlgorithmURI);

                        try {
                            return MessageDigest.getInstance(digestAlgOid);
                        } catch (NoSuchAlgorithmException e) {
                            throw new UnsupportedAlgorithmException(e.getMessage(), digestAlgorithmURI, e);
                        }

                    }

                });

        // 3. Проверка подписи.

        final XadesVerifier verifier = verProf.newVerifier();
        final Element signatureElement = (Element) nl.item(0); // предположительно, один узел с подписью

        verifier.verify(signatureElement, null);

        System.out.println("Validation of XAdES-T completed.");