Caused by: OCSP status of certificate: sn 19867, subject SURNAME=XXX, issuer OID.1.2.643.3.131.1.1=#120C303037373130393634333438, OID.1.2.643.100.1=#120D31313437373436373134363331, L=г.Москва, STREET="УЛИЦА ИЛЬИНКА, Д.4, АНТР 3 ЭТ; ПОМ.94", ST=77 Москва, C=RU, O=ООО «Екей УЦ», OU=Удостоверяющий центр, CN=ООО «Екей УЦ», EMAILADDRESS=contact@ekey.ru is UNKNOWN; error codes: [19] 'Certificate status is unknown',
at ru.CryptoPro.AdES.service.OCSPServiceConnectorImpl.getEncoded(Unknown Source)
at ru.CryptoPro.AdES.evidence.ocsp.OCSPEvidenceCollectorImpl.getEvidence(Unknown Source)
at ru.CryptoPro.AdES.evidence.ocsp.OCSPEvidenceCollectorImpl.make(Unknown Source)
at ru.CryptoPro.AdES.evidence.EvidenceCollectorImpl.collect(Unknown Source)
at ru.CryptoPro.AdES.evidence.CertificateChainEvidenceBuilderImpl.build(Unknown Source)
... 28 more

srcSigner.enhance(JCP.PROVIDER_NAME, JCP.GOST_DIGEST_OID, chainList, tspUrl, CAdESType.CAdES_X_Long_Type_1, new AttributeTable(new Hashtable()));

FINE: Collecting OCSP evidences...
сен 04, 2020 2:37:23 PM ru.CryptoPro.AdES.evidence.ocsp.OCSPEvidenceCollectorImpl getEvidence
FINE: Try to use following url: http://sp2.ekey.ru:2560
сен 04, 2020 2:37:23 PM ru.CryptoPro.AdES.service.ServiceConnectorImpl callService
FINE: Calling to service...
сен 04, 2020 2:37:23 PM ru.CryptoPro.AdES.service.ServiceConnectorImpl callService
FINE: Call to service: http://sp2.ekey.ru:2560

Как я понимаю, через cryptoexpert ЭП проходит проверку
2020-09-04 cryptoexpert.jpg (156kb) загружен 7 раз(а).

@Test
public void test() throws IOException, CAdESException {
try (
InputStream dataIs = new FileInputStream("d:\\ocsp_problem.pdf");
InputStream signIs = new FileInputStream("d:\\ocsp_problem.pdf.sig")) {

CAdESSignature signature = new CAdESSignature(signIs, dataIs, null);

System.setProperty("ru.CryptoPro.reprov.enableCRLDP", "true");
System.setProperty("com.sun.security.enableCRLDP", "true");
System.setProperty("com.ibm.security.enableCRLDP", "true");

List<X509Certificate> chainList = new ArrayList<>();
List<SignerInformation> srcSignerInfos = new ArrayList<>();

for (CAdESSigner signer : signature.getCAdESSignerInfos()) {
chainList.add(signer.getSignerCertificate());
srcSignerInfos.add(signer.getSignerInfo());
}

for (int cnt = 0; cnt < srcSignerInfos.size(); cnt++) {
CAdESSigner srcSigner = signature.getCAdESSignerInfo(cnt);
SignerInformation srcSignerInfo = srcSigner.getSignerInfo();
CAdESSigner enhancedSigner = srcSigner.enhance(JCP.PROVIDER_NAME, JCP.GOST_DIGEST_OID, chainList,
"http://tsp.uc-em.ru:2020/tsp-gost2012/tsp.srf", CAdESType.CAdES_X_Long_Type_1, new AttributeTable(new Hashtable()));
}

} catch (Throwable e) {
e.printStackTrace();
throw e;
}
}