Чтобы получить метаданные из удаленного источника, я определилExtendedMetadataDelegate боб следующим образом:

@Bean
@Qualifier("replyMeta")
public ExtendedMetadataDelegate replyMetadataProvider() throws MetadataProviderException {
    String metadataURL = "https://ststest-replynet.reply.it/FederationMetadata/2007-06/FederationMetadata.xml";
    final Timer backgroundTaskTimer = new Timer(true);
    HTTPMetadataProvider provider = new HTTPMetadataProvider(
            backgroundTaskTimer, httpClient(), metadataURL);
    provider.setParserPool(parserPool());
    ExtendedMetadataDelegate emd = new ExtendedMetadataDelegate(
            provider, new ExtendedMetadata());
    return emd;
}

Чтобы обеспечить установление доверия подписи, я добавил соответствующий ключ как в хранилище ключей JDK, так и в хранилище ключей приложения (второго шага может быть недостаточно); несмотря на это, при запуске веб-приложения возникает ошибка.

[2014-08-18 14:36:47.200] boot - 6000 DEBUG [localhost-startStop-1] --- SignatureValidator: Attempting to validate signature using key from supplied credential
[2014-08-18 14:36:47.200] boot - 6000 DEBUG [localhost-startStop-1] --- SignatureValidator: Creating XMLSignature object
[2014-08-18 14:36:47.206] boot - 6000 DEBUG [localhost-startStop-1] --- SignatureValidator: Validating signature with signature algorithm URI: http://www.w3.org/2001/04/xmldsig-more#rsa-sha256
[2014-08-18 14:36:47.207] boot - 6000 DEBUG [localhost-startStop-1] --- SignatureValidator: Validation credential key algorithm 'RSA', key instance class 'sun.security.rsa.RSAPublicKeyImpl'
[2014-08-18 14:36:47.329] boot - 6000 DEBUG [localhost-startStop-1] --- SignatureValidator: Signature validated with key from supplied credential
[2014-08-18 14:36:47.329] boot - 6000 DEBUG [localhost-startStop-1] --- BaseSignatureTrustEngine: Signature validation using candidate credential was successful
[2014-08-18 14:36:47.330] boot - 6000 DEBUG [localhost-startStop-1] --- BaseSignatureTrustEngine: Successfully verified signature using KeyInfo-derived credential
[2014-08-18 14:36:47.330] boot - 6000 DEBUG [localhost-startStop-1] --- BaseSignatureTrustEngine: Attempting to establish trust of KeyInfo-derived credential
[2014-08-18 14:36:47.330] boot - 6000 DEBUG [localhost-startStop-1] --- BasicX509CredentialNameEvaluator: Supplied trusted names are null or empty, skipping name evaluation
[2014-08-18 14:36:47.331] boot - 6000 DEBUG [localhost-startStop-1] --- MetadataCredentialResolver: Attempting PKIX path validation on untrusted credential: [subjectName='CN=ADFS Signing - ststest-replynet.reply.it']
[2014-08-18 14:36:47.346] boot - 6000 ERROR [localhost-startStop-1] --- MetadataCredentialResolver: PKIX path construction failed for untrusted credential: [subjectName='CN=ADFS Signing - ststest-replynet.reply.it']: unable to find valid certification path to requested target
[2014-08-18 14:36:47.347] boot - 6000 DEBUG [localhost-startStop-1] --- PKIXSignatureTrustEngine: Signature trust could not be established via PKIX validation of signing credential
[2014-08-18 14:36:47.347] boot - 6000 DEBUG [localhost-startStop-1] --- BaseSignatureTrustEngine: Failed to establish trust of KeyInfo-derived credential
[2014-08-18 14:36:47.347] boot - 6000 DEBUG [localhost-startStop-1] --- BaseSignatureTrustEngine: Failed to verify signature and/or establish trust using any KeyInfo-derived credentials
[2014-08-18 14:36:47.347] boot - 6000 DEBUG [localhost-startStop-1] --- PKIXSignatureTrustEngine: PKIX validation of signature failed, unable to resolve valid and trusted signing key
[2014-08-18 14:36:47.347] boot - 6000 ERROR [localhost-startStop-1] --- SignatureValidationFilter: Signature trust establishment failed for metadata entry http://ststest-replynet.reply.it/adfs/services/trust
[2014-08-18 14:36:47.349] boot - 6000 ERROR [localhost-startStop-1] --- AbstractReloadingMetadataProvider: Error filtering metadata from https://ststest-replynet.reply.it/FederationMetadata/2007-06/FederationMetadata.xml
org.opensaml.saml2.metadata.provider.FilterException: Signature trust establishment failed for metadata entry

Ошибка исчезает при установке:

emd.setMetadataTrustCheck(false); 

... но я хотел бы проверить используемые метаданные.

Есть ли способ устранить эту ошибку?

Обновить:

Я пытался настроитьExtendedMetadata следующим образом, но ошибка сохраняется.

em.setAlias("defaultAlias");
em.setSigningKey("*.reply.it (Go Daddy Secure Certification Authority)");