Hi, I have discovered yet another bug in SAML2 support in 6.3.4-SNAPSHOT 
and 6.4.0-SNAPSHOT.
It looks like SamlIdPMetadataResolver is provided with cas url instead of 
entityId while resolving signing credentials.

cas_1 | TRACE [org.apereo.cas.support.saml.SamlUtils] Attempting to create 
SAMLObject for type: [interface org.opensaml.saml.saml2.core.Status] and 
QName: [{urn:oasis:names:tc:SAML:2.0:protocol}Status]
cas_1 | TRACE [org.apereo.cas.support.saml.SamlUtils] Attempting to create 
SAMLObject for type: [interface org.opensaml.saml.saml2.core.StatusCode] 
and QName: [{urn:oasis:names:tc:SAML:2.0:protocol}StatusCode]
cas_1 | DEBUG [org.apereo.cas.support.saml.SamlUtils] 
********************************************************************************
cas_1 | DEBUG [org.apereo.cas.support.saml.SamlUtils] Logging 
[org.opensaml.saml.saml2.core.impl.ResponseImpl]
cas_1 | 
cas_1 | [<?xml version="1.0" encoding="UTF-8"?><saml2p:Response 
xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol" 
Destination="https://aai.pionier.net.pl/test/module.php/saml/sp/saml2-acs.php/default-sp";
 
ID="_111942357346883584" 
InResponseTo="_f23e8fe1993a1a61287f3d30288ee5700f936c0631" 
IssueInstant="2021-04-05T07:55:18.827Z" Version="2.0">
cas_1 | <saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" 
Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">https://login.umcs.pl/cas/idp/metadata</saml2:Issuer>
cas_1 | <saml2p:Status>
cas_1 | <saml2p:StatusCode 
Value="urn:oasis:names:tc:SAML:2.0:status:Success"/>
cas_1 | </saml2p:Status>
cas_1 | <saml2:Assertion 
xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" 
ID="_5878410931315849216" IssueInstant="2021-04-05T07:55:18.753Z" 
Version="2.0">
cas_1 | <saml2:Issuer>https://login.umcs.pl/cas/idp/metadata</saml2:Issuer>
cas_1 | <saml2:Subject>
// DELETED
cas_1 | </saml2:Assertion>
cas_1 | </saml2p:Response>
cas_1 | ]
cas_1 | 
cas_1 | 
cas_1 | DEBUG [org.apereo.cas.support.saml.SamlUtils] 
********************************************************************************
cas_1 | DEBUG 
[org.apereo.cas.support.saml.web.idp.profile.builders.response.SamlProfileSaml2ResponseBuilder]
 
SAML entity id 
[https://aai.pionier.net.pl/test/module.php/saml/sp/metadata.php/default-sp] 
indicates that SAML responses should be signed
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Attempting to encode [org.opensaml.saml.saml2.core.impl.ResponseImpl] for 
[https://aai.pionier.net.pl/test/module.php/saml/sp/metadata.php/default-sp]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Outbound saml object to use is 
[org.opensaml.saml.saml2.core.impl.ResponseImpl]
cas_1 | DEBUG [org.apereo.cas.support.saml.SamlIdPUtils] Fetched assertion 
consumer service url 
[https://aai.pionier.net.pl/test/module.php/saml/sp/saml2-acs.php/default-sp] 
with binding [urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST] from 
authentication request
cas_1 | DEBUG [org.apereo.cas.support.saml.SamlIdPUtils] Configured peer 
entity endpoint to be 
[https://aai.pionier.net.pl/test/module.php/saml/sp/saml2-acs.php/default-sp] 
with binding [urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Default signature signing blocked algorithms: 
[[http://www.w3.org/2001/04/xmldsig-more#hmac-md5, 
http://www.w3.org/2001/04/xmldsig-more#md5, 
http://www.w3.org/2001/04/xmldsig-more#rsa-md5]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Default signature signing signature algorithms: 
[[http://www.w3.org/2001/04/xmldsig-more#rsa-sha256, 
http://www.w3.org/2001/04/xmldsig-more#rsa-sha384, 
http://www.w3.org/2001/04/xmldsig-more#rsa-sha512, 
http://www.w3.org/2000/09/xmldsig#rsa-sha1, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha256, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha384, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha512, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha1, 
http://www.w3.org/2000/09/xmldsig#dsa-sha1, 
http://www.w3.org/2001/04/xmldsig-more#hmac-sha256, 
http://www.w3.org/2001/04/xmldsig-more#hmac-sha384, 
http://www.w3.org/2001/04/xmldsig-more#hmac-sha512, 
http://www.w3.org/2000/09/xmldsig#hmac-sha1]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Default signature signing signature canonicalization algorithm: 
[http://www.w3.org/2001/10/xml-exc-c14n#]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Default signature signing allowed algorithms: [[]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Default signature signing reference digest methods: 
[[http://www.w3.org/2001/04/xmlenc#sha256, 
http://www.w3.org/2001/04/xmldsig-more#sha384, 
http://www.w3.org/2001/04/xmlenc#sha512, 
http://www.w3.org/2000/09/xmldsig#sha1]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Finalized signature signing blocked algorithms: 
[[http://www.w3.org/2001/04/xmldsig-more#hmac-md5, 
http://www.w3.org/2001/04/xmldsig-more#md5, 
http://www.w3.org/2001/04/xmldsig-more#rsa-md5]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Finalized signature signing signature algorithms: 
[[http://www.w3.org/2001/04/xmldsig-more#rsa-sha256, 
http://www.w3.org/2001/04/xmldsig-more#rsa-sha384, 
http://www.w3.org/2001/04/xmldsig-more#rsa-sha512, 
http://www.w3.org/2000/09/xmldsig#rsa-sha1, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha256, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha384, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha512, 
http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha1, 
http://www.w3.org/2000/09/xmldsig#dsa-sha1, 
http://www.w3.org/2001/04/xmldsig-more#hmac-sha256, 
http://www.w3.org/2001/04/xmldsig-more#hmac-sha384, 
http://www.w3.org/2001/04/xmldsig-more#hmac-sha512, 
http://www.w3.org/2000/09/xmldsig#hmac-sha1]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Finalized signature signing signature canonicalization algorithm: 
[http://www.w3.org/2001/10/xml-exc-c14n#]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Finalized signature signing allowed algorithms: [[]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Finalized signature signing reference digest methods: 
[[http://www.w3.org/2001/04/xmlenc#sha256, 
http://www.w3.org/2001/04/xmldsig-more#sha384, 
http://www.w3.org/2001/04/xmlenc#sha512, 
http://www.w3.org/2000/09/xmldsig#sha1]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.FileSystemSamlIdPMetadataLocator]
 
Metadata directory location for [aai_pionier_net_pl_test] is 
[/etc/cas/saml/aai_pionier_net_pl_test-1001]
cas_1 | DEBUG 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Locating signature signing key for 
[SamlRegisteredService(super=AbstractRegisteredService(serviceId=https://aai\.pionier\.net\.pl/test/.*,
 
name=aai_pionier_net_pl_test, theme=null, informationUrl=null, 
privacyUrl=null, responseType=null, id=1001, description=null, 
expirationPolicy=DefaultRegisteredServiceExpirationPolicy(deleteWhenExpired=false,
 
notifyWhenDeleted=false, notifyWhenExpired=false, expirationDate=null), 
acceptableUsagePolicy=DefaultRegisteredServiceAcceptableUsagePolicy(enabled=true,
 
messageCode=null, text=null), 
proxyPolicy=org.apereo.cas.services.RefuseRegisteredServiceProxyPolicy@1, 
proxyTicketExpirationPolicy=null, proxyGrantingTicketExpirationPolicy=null, 
ticketGrantingTicketExpirationPolicy=null, 
serviceTicketExpirationPolicy=null, singleSignOnParticipationPolicy=null, 
evaluationOrder=999, 
usernameAttributeProvider=org.apereo.cas.services.AnonymousRegisteredServiceUsernameAttributeProvider@9d20af0c,
 
logoutType=BACK_CHANNEL, environments=[], 
attributeReleasePolicy=ChainingAttributeReleasePolicy(policies=[MetadataEntityAttributesAttributeReleasePolicy(super=ReturnAllowedAttributeReleasePolicy(super=AbstractRegisteredServiceAttributeReleasePolicy(attributeFilter=null,
 
principalAttributesRepository=DefaultPrincipalAttributesRepository(), 
consentPolicy=DefaultRegisteredServiceConsentPolicy(status=UNDEFINED, 
excludedAttributes=null, includeOnlyAttributes=null, order=0), 
authorizedToReleaseCredentialPassword=false, 
authorizedToReleaseProxyGrantingTicket=false, 
excludeDefaultAttributes=false, 
authorizedToReleaseAuthenticationAttributes=true, 
principalIdAttribute=null, order=0), 
allowedAttributes=[eduPersonPrincipalName, eduPersonTargetedID, mail, 
displayName, givenName, sn, eduPersonScopedAffiliation]), 
entityAttribute=null, entityAttributeFormat=null, 
entityAttributeValues=[]), 
EduPersonTargetedIdAttributeReleasePolicy(super=ReturnAllowedAttributeReleasePolicy(super=AbstractRegisteredServiceAttributeReleasePolicy(attributeFilter=null,
 
principalAttributesRepository=DefaultPrincipalAttributesRepository(), 
consentPolicy=DefaultRegisteredServiceConsentPolicy(status=UNDEFINED, 
excludedAttributes=null, includeOnlyAttributes=null, order=0), 
authorizedToReleaseCredentialPassword=false, 
authorizedToReleaseProxyGrantingTicket=false, 
excludeDefaultAttributes=false, 
authorizedToReleaseAuthenticationAttributes=true, 
principalIdAttribute=null, order=0), allowedAttributes=[]), salt=abc, 
attribute=uidNumber)], mergingPolicy=replace, order=0), 
multifactorPolicy=DefaultRegisteredServiceMultifactorPolicy(multifactorAuthenticationProviders=[],
 
failureMode=UNDEFINED, principalAttributeNameTrigger=null, 
principalAttributeValueToMatch=null, bypassEnabled=false, 
forceExecution=false, bypassTrustedDeviceEnabled=false, 
bypassPrincipalAttributeName=null, bypassPrincipalAttributeValue=null, 
script=null), 
matchingStrategy=FullRegexRegisteredServiceMatchingStrategy(servicePattern=https://aai\.pionier\.net\.pl/test/.*),
 
logo=null, logoutUrl=null, redirectUrl=null, 
accessStrategy=DefaultRegisteredServiceAccessStrategy(order=0, 
enabled=true, ssoEnabled=true, unauthorizedRedirectUrl=null, 
delegatedAuthenticationPolicy=DefaultRegisteredServiceDelegatedAuthenticationPolicy(allowedProviders=[],
 
permitUndefined=true, exclusive=false), requireAllAttributes=true, 
requiredAttributes={}, rejectedAttributes={}, caseInsensitive=false), 
publicKey=null, 
authenticationPolicy=DefaultRegisteredServiceAuthenticationPolicy(requiredAuthenticationHandlers=[],
 
excludedAuthenticationHandlers=[], 
criteria=AnyAuthenticationHandlerRegisteredServiceAuthenticationPolicyCriteria(tryAll=false)),
 
properties={}, contacts=[]), 
metadataLocation=/etc/cas/metadata/aai.pionier.net.pl.xml, 
metadataProxyLocation=null, metadataMaxValidity=0, 
requiredAuthenticationContextClass=null, metadataCriteriaDirection=null, 
metadataCriteriaPattern=null, 
requiredNameIdFormat=urn:oasis:names:tc:SAML:2.0:nameid-format:persistent, 
metadataSignatureLocation=null, logoutResponseBinding=null, 
requireSignedRoot=true, serviceProviderNameIdQualifier=null, 
nameIdQualifier=null, metadataExpirationDuration=PT60M, 
signingCredentialFingerprint=null, issuerEntityId=null, 
signingKeyAlgorithm=null, signAssertions=false, 
signUnsolicitedAuthnRequest=false, skipGeneratingAssertionNameId=false, 
skipGeneratingSubjectConfirmationInResponseTo=false, 
skipGeneratingSubjectConfirmationNotOnOrAfter=false, 
skipGeneratingSubjectConfirmationRecipient=false, 
skipGeneratingSubjectConfirmationNotBefore=true, 
skipGeneratingSubjectConfirmationNameId=true, 
skipGeneratingNameIdQualifiers=false, skipGeneratingTransientNameId=false, 
signResponses=true, encryptAssertions=false, encryptAttributes=false, 
encryptionOptional=false, metadataCriteriaRoles=SPSSODescriptor, 
metadataCriteriaRemoveEmptyEntitiesDescriptors=true, 
metadataCriteriaRemoveRolelessEntityDescriptors=true, 
signingCredentialType=null, assertionAudiences=null, skewAllowance=0, 
whiteListBlackListPrecedence=null, attributeNameFormats={}, 
attributeFriendlyNames={}, attributeValueTypes={}, 
encryptableAttributes=[], signingSignatureReferenceDigestMethods=[], 
signingSignatureAlgorithms=[], signingSignatureBlackListedAlgorithms=[], 
signingSignatureWhiteListedAlgorithms=[], 
signingSignatureCanonicalizationAlgorithm=null, 
encryptionDataAlgorithms=[], encryptionKeyAlgorithms=[], 
encryptionBlackListedAlgorithms=[], encryptionWhiteListedAlgorithms=[])] 
using algorithm [RSA]
cas_1 | DEBUG [org.opensaml.saml.security.impl.MetadataCredentialResolver] 
Resolving credentials from metadata using entityID: 
https://login.umcs.pl/cas/idp/metadata, role: 
{urn:oasis:names:tc:SAML:2.0:metadata}IDPSSODescriptor, protocol: null, 
usage: SIGNING
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.FileSystemSamlIdPMetadataLocator]
 
Metadata directory location for [aai_pionier_net_pl_test] is 
[/etc/cas/saml/aai_pionier_net_pl_test-1001]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.FileSystemSamlIdPMetadataLocator]
 
Metadata directory location for [aai_pionier_net_pl_test] is 
[/etc/cas/saml/aai_pionier_net_pl_test-1001]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Resolved metadata resource is [file [/etc/cas/saml/idp-metadata.xml]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Located metadata root element [EntityDescriptor]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Initializing metadata resolver [SamlIdPMetadataResolver]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Resolving metadata for criteria [[UsageCriterion [credUsage=SIGNING], 
EntityRoleCriterion 
[role={urn:oasis:names:tc:SAML:2.0:metadata}IDPSSODescriptor], 
SamlIdPSamlRegisteredServiceCriterion(registeredService=SamlRegisteredService(super=AbstractRegisteredService(serviceId=https://aai\.pionier\.net\.pl/test/.*,
 
name=aai_pionier_net_pl_test, theme=null, informationUrl=null, 
privacyUrl=null, responseType=null, id=1001, description=null, 
expirationPolicy=DefaultRegisteredServiceExpirationPolicy(deleteWhenExpired=false,
 
notifyWhenDeleted=false, notifyWhenExpired=false, expirationDate=null), 
acceptableUsagePolicy=DefaultRegisteredServiceAcceptableUsagePolicy(enabled=true,
 
messageCode=null, text=null), 
proxyPolicy=org.apereo.cas.services.RefuseRegisteredServiceProxyPolicy@1, 
proxyTicketExpirationPolicy=null, proxyGrantingTicketExpirationPolicy=null, 
ticketGrantingTicketExpirationPolicy=null, 
serviceTicketExpirationPolicy=null, singleSignOnParticipationPolicy=null, 
evaluationOrder=999, 
usernameAttributeProvider=org.apereo.cas.services.AnonymousRegisteredServiceUsernameAttributeProvider@9d20af0c,
 
logoutType=BACK_CHANNEL, environments=[], 
attributeReleasePolicy=ChainingAttributeReleasePolicy(policies=[MetadataEntityAttributesAttributeReleasePolicy(super=ReturnAllowedAttributeReleasePolicy(super=AbstractRegisteredServiceAttributeReleasePolicy(attributeFilter=null,
 
principalAttributesRepository=DefaultPrincipalAttributesRepository(), 
consentPolicy=DefaultRegisteredServiceConsentPolicy(status=UNDEFINED, 
excludedAttributes=null, includeOnlyAttributes=null, order=0), 
authorizedToReleaseCredentialPassword=false, 
authorizedToReleaseProxyGrantingTicket=false, 
excludeDefaultAttributes=false, 
authorizedToReleaseAuthenticationAttributes=true, 
principalIdAttribute=null, order=0), 
allowedAttributes=[eduPersonPrincipalName, eduPersonTargetedID, mail, 
displayName, givenName, sn, eduPersonScopedAffiliation]), 
entityAttribute=null, entityAttributeFormat=null, 
entityAttributeValues=[]), 
EduPersonTargetedIdAttributeReleasePolicy(super=ReturnAllowedAttributeReleasePolicy(super=AbstractRegisteredServiceAttributeReleasePolicy(attributeFilter=null,
 
principalAttributesRepository=DefaultPrincipalAttributesRepository(), 
consentPolicy=DefaultRegisteredServiceConsentPolicy(status=UNDEFINED, 
excludedAttributes=null, includeOnlyAttributes=null, order=0), 
authorizedToReleaseCredentialPassword=false, 
authorizedToReleaseProxyGrantingTicket=false, 
excludeDefaultAttributes=false, 
authorizedToReleaseAuthenticationAttributes=true, 
principalIdAttribute=null, order=0), allowedAttributes=[]), salt=abc, 
attribute=uidNumber)], mergingPolicy=replace, order=0), 
multifactorPolicy=DefaultRegisteredServiceMultifactorPolicy(multifactorAuthenticationProviders=[],
 
failureMode=UNDEFINED, principalAttributeNameTrigger=null, 
principalAttributeValueToMatch=null, bypassEnabled=false, 
forceExecution=false, bypassTrustedDeviceEnabled=false, 
bypassPrincipalAttributeName=null, bypassPrincipalAttributeValue=null, 
script=null), 
matchingStrategy=FullRegexRegisteredServiceMatchingStrategy(servicePattern=https://aai\.pionier\.net\.pl/test/.*),
 
logo=null, logoutUrl=null, redirectUrl=null, 
accessStrategy=DefaultRegisteredServiceAccessStrategy(order=0, 
enabled=true, ssoEnabled=true, unauthorizedRedirectUrl=null, 
delegatedAuthenticationPolicy=DefaultRegisteredServiceDelegatedAuthenticationPolicy(allowedProviders=[],
 
permitUndefined=true, exclusive=false), requireAllAttributes=true, 
requiredAttributes={}, rejectedAttributes={}, caseInsensitive=false), 
publicKey=null, 
authenticationPolicy=DefaultRegisteredServiceAuthenticationPolicy(requiredAuthenticationHandlers=[],
 
excludedAuthenticationHandlers=[], 
criteria=AnyAuthenticationHandlerRegisteredServiceAuthenticationPolicyCriteria(tryAll=false)),
 
properties={}, contacts=[]), 
metadataLocation=/etc/cas/metadata/aai.pionier.net.pl.xml, 
metadataProxyLocation=null, metadataMaxValidity=0, 
requiredAuthenticationContextClass=null, metadataCriteriaDirection=null, 
metadataCriteriaPattern=null, 
requiredNameIdFormat=urn:oasis:names:tc:SAML:2.0:nameid-format:persistent, 
metadataSignatureLocation=null, logoutResponseBinding=null, 
requireSignedRoot=true, serviceProviderNameIdQualifier=null, 
nameIdQualifier=null, metadataExpirationDuration=PT60M, 
signingCredentialFingerprint=null, issuerEntityId=null, 
signingKeyAlgorithm=null, signAssertions=false, 
signUnsolicitedAuthnRequest=false, skipGeneratingAssertionNameId=false, 
skipGeneratingSubjectConfirmationInResponseTo=false, 
skipGeneratingSubjectConfirmationNotOnOrAfter=false, 
skipGeneratingSubjectConfirmationRecipient=false, 
skipGeneratingSubjectConfirmationNotBefore=true, 
skipGeneratingSubjectConfirmationNameId=true, 
skipGeneratingNameIdQualifiers=false, skipGeneratingTransientNameId=false, 
signResponses=true, encryptAssertions=false, encryptAttributes=false, 
encryptionOptional=false, metadataCriteriaRoles=SPSSODescriptor, 
metadataCriteriaRemoveEmptyEntitiesDescriptors=true, 
metadataCriteriaRemoveRolelessEntityDescriptors=true, 
signingCredentialType=null, assertionAudiences=null, skewAllowance=0, 
whiteListBlackListPrecedence=null, attributeNameFormats={}, 
attributeFriendlyNames={}, attributeValueTypes={}, 
encryptableAttributes=[], signingSignatureReferenceDigestMethods=[], 
signingSignatureAlgorithms=[], signingSignatureBlackListedAlgorithms=[], 
signingSignatureWhiteListedAlgorithms=[], 
signingSignatureCanonicalizationAlgorithm=null, 
encryptionDataAlgorithms=[], encryptionKeyAlgorithms=[], 
encryptionBlackListedAlgorithms=[], encryptionWhiteListedAlgorithms=[])), 
SignatureSigningConfigurationCriterion 
[configs=[org.opensaml.xmlsec.impl.BasicSignatureSigningConfiguration@3df6e0b2]],
 
EntityIdCriterion [id=https://login.umcs.pl/cas/idp/metadata]]]
cas_1 | DEBUG 
[org.opensaml.saml.metadata.resolver.impl.AbstractMetadataResolver] 
Metadata Resolver SamlIdPMetadataResolver 
https://login.umcs.pl/cas/idp/metadata: Metadata backing store does not 
contain any EntityDescriptors with the ID: 
https://login.umcs.pl/cas/idp/metadata
cas_1 | DEBUG 
[org.opensaml.saml.metadata.resolver.impl.AbstractBatchMetadataResolver] 
Metadata Resolver SamlIdPMetadataResolver 
https://login.umcs.pl/cas/idp/metadata: Resolved 0 candidates via 
EntityIdCriterion: EntityIdCriterion 
[id=https://login.umcs.pl/cas/idp/metadata]
cas_1 | DEBUG 
[org.opensaml.saml.metadata.resolver.impl.AbstractMetadataResolver] 
Metadata Resolver SamlIdPMetadataResolver 
https://login.umcs.pl/cas/idp/metadata: Candidates iteration was empty, 
nothing to filter via predicates
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Resolved metadata resource is [file [/etc/cas/saml/idp-metadata.xml]]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Located metadata root element [EntityDescriptor]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Initializing metadata resolver [SamlIdPMetadataResolver]
cas_1 | TRACE 
[org.apereo.cas.support.saml.idp.metadata.locator.SamlIdPMetadataResolver] 
Resolving metadata for criteria [[UsageCriterion [credUsage=SIGNING], 
EntityRoleCriterion 
[role={urn:oasis:names:tc:SAML:2.0:metadata}IDPSSODescriptor], 
SamlIdPSamlRegisteredServiceCriterion(registeredService=SamlRegisteredService(super=AbstractRegisteredService(serviceId=https://aai\.pionier\.net\.pl/test/.*,
 
name=aai_pionier_net_pl_test, theme=null, informationUrl=null, 
privacyUrl=null, responseType=null, id=1001, description=null, 
expirationPolicy=DefaultRegisteredServiceExpirationPolicy(deleteWhenExpired=false,
 
notifyWhenDeleted=false, notifyWhenExpired=false, expirationDate=null), 
acceptableUsagePolicy=DefaultRegisteredServiceAcceptableUsagePolicy(enabled=true,
 
messageCode=null, text=null), 
proxyPolicy=org.apereo.cas.services.RefuseRegisteredServiceProxyPolicy@1, 
proxyTicketExpirationPolicy=null, proxyGrantingTicketExpirationPolicy=null, 
ticketGrantingTicketExpirationPolicy=null, 
serviceTicketExpirationPolicy=null, singleSignOnParticipationPolicy=null, 
evaluationOrder=999, 
usernameAttributeProvider=org.apereo.cas.services.AnonymousRegisteredServiceUsernameAttributeProvider@9d20af0c,
 
logoutType=BACK_CHANNEL, environments=[], 
attributeReleasePolicy=ChainingAttributeReleasePolicy(policies=[MetadataEntityAttributesAttributeReleasePolicy(super=ReturnAllowedAttributeReleasePolicy(super=AbstractRegisteredServiceAttributeReleasePolicy(attributeFilter=null,
 
principalAttributesRepository=DefaultPrincipalAttributesRepository(), 
consentPolicy=DefaultRegisteredServiceConsentPolicy(status=UNDEFINED, 
excludedAttributes=null, includeOnlyAttributes=null, order=0), 
authorizedToReleaseCredentialPassword=false, 
authorizedToReleaseProxyGrantingTicket=false, 
excludeDefaultAttributes=false, 
authorizedToReleaseAuthenticationAttributes=true, 
principalIdAttribute=null, order=0), 
allowedAttributes=[eduPersonPrincipalName, eduPersonTargetedID, mail, 
displayName, givenName, sn, eduPersonScopedAffiliation]), 
entityAttribute=null, entityAttributeFormat=null, 
entityAttributeValues=[]), 
EduPersonTargetedIdAttributeReleasePolicy(super=ReturnAllowedAttributeReleasePolicy(super=AbstractRegisteredServiceAttributeReleasePolicy(attributeFilter=null,
 
principalAttributesRepository=DefaultPrincipalAttributesRepository(), 
consentPolicy=DefaultRegisteredServiceConsentPolicy(status=UNDEFINED, 
excludedAttributes=null, includeOnlyAttributes=null, order=0), 
authorizedToReleaseCredentialPassword=false, 
authorizedToReleaseProxyGrantingTicket=false, 
excludeDefaultAttributes=false, 
authorizedToReleaseAuthenticationAttributes=true, 
principalIdAttribute=null, order=0), allowedAttributes=[]), salt=abc, 
attribute=uidNumber)], mergingPolicy=replace, order=0), 
multifactorPolicy=DefaultRegisteredServiceMultifactorPolicy(multifactorAuthenticationProviders=[],
 
failureMode=UNDEFINED, principalAttributeNameTrigger=null, 
principalAttributeValueToMatch=null, bypassEnabled=false, 
forceExecution=false, bypassTrustedDeviceEnabled=false, 
bypassPrincipalAttributeName=null, bypassPrincipalAttributeValue=null, 
script=null), 
matchingStrategy=FullRegexRegisteredServiceMatchingStrategy(servicePattern=https://aai\.pionier\.net\.pl/test/.*),
 
logo=null, logoutUrl=null, redirectUrl=null, 
accessStrategy=DefaultRegisteredServiceAccessStrategy(order=0, 
enabled=true, ssoEnabled=true, unauthorizedRedirectUrl=null, 
delegatedAuthenticationPolicy=DefaultRegisteredServiceDelegatedAuthenticationPolicy(allowedProviders=[],
 
permitUndefined=true, exclusive=false), requireAllAttributes=true, 
requiredAttributes={}, rejectedAttributes={}, caseInsensitive=false), 
publicKey=null, 
authenticationPolicy=DefaultRegisteredServiceAuthenticationPolicy(requiredAuthenticationHandlers=[],
 
excludedAuthenticationHandlers=[], 
criteria=AnyAuthenticationHandlerRegisteredServiceAuthenticationPolicyCriteria(tryAll=false)),
 
properties={}, contacts=[]), 
metadataLocation=/etc/cas/metadata/aai.pionier.net.pl.xml, 
metadataProxyLocation=null, metadataMaxValidity=0, 
requiredAuthenticationContextClass=null, metadataCriteriaDirection=null, 
metadataCriteriaPattern=null, 
requiredNameIdFormat=urn:oasis:names:tc:SAML:2.0:nameid-format:persistent, 
metadataSignatureLocation=null, logoutResponseBinding=null, 
requireSignedRoot=true, serviceProviderNameIdQualifier=null, 
nameIdQualifier=null, metadataExpirationDuration=PT60M, 
signingCredentialFingerprint=null, issuerEntityId=null, 
signingKeyAlgorithm=null, signAssertions=false, 
signUnsolicitedAuthnRequest=false, skipGeneratingAssertionNameId=false, 
skipGeneratingSubjectConfirmationInResponseTo=false, 
skipGeneratingSubjectConfirmationNotOnOrAfter=false, 
skipGeneratingSubjectConfirmationRecipient=false, 
skipGeneratingSubjectConfirmationNotBefore=true, 
skipGeneratingSubjectConfirmationNameId=true, 
skipGeneratingNameIdQualifiers=false, skipGeneratingTransientNameId=false, 
signResponses=true, encryptAssertions=false, encryptAttributes=false, 
encryptionOptional=false, metadataCriteriaRoles=SPSSODescriptor, 
metadataCriteriaRemoveEmptyEntitiesDescriptors=true, 
metadataCriteriaRemoveRolelessEntityDescriptors=true, 
signingCredentialType=null, assertionAudiences=null, skewAllowance=0, 
whiteListBlackListPrecedence=null, attributeNameFormats={}, 
attributeFriendlyNames={}, attributeValueTypes={}, 
encryptableAttributes=[], signingSignatureReferenceDigestMethods=[], 
signingSignatureAlgorithms=[], signingSignatureBlackListedAlgorithms=[], 
signingSignatureWhiteListedAlgorithms=[], 
signingSignatureCanonicalizationAlgorithm=null, 
encryptionDataAlgorithms=[], encryptionKeyAlgorithms=[], 
encryptionBlackListedAlgorithms=[], encryptionWhiteListedAlgorithms=[])), 
SignatureSigningConfigurationCriterion 
[configs=[org.opensaml.xmlsec.impl.BasicSignatureSigningConfiguration@3df6e0b2]],
 
EntityIdCriterion [id=https://login.umcs.pl/cas/idp/metadata]]]
cas_1 | DEBUG 
[org.opensaml.saml.metadata.resolver.impl.AbstractMetadataResolver] 
Metadata Resolver SamlIdPMetadataResolver 
https://login.umcs.pl/cas/idp/metadata: Metadata backing store does not 
contain any EntityDescriptors with the ID: 
https://login.umcs.pl/cas/idp/metadata
cas_1 | DEBUG 
[org.opensaml.saml.metadata.resolver.impl.AbstractBatchMetadataResolver] 
Metadata Resolver SamlIdPMetadataResolver 
https://login.umcs.pl/cas/idp/metadata: Resolved 0 candidates via 
EntityIdCriterion: EntityIdCriterion 
[id=https://login.umcs.pl/cas/idp/metadata]
cas_1 | DEBUG 
[org.opensaml.saml.metadata.resolver.impl.AbstractMetadataResolver] 
Metadata Resolver SamlIdPMetadataResolver 
https://login.umcs.pl/cas/idp/metadata: Candidates iteration was empty, 
nothing to filter via predicates
cas_1 | DEBUG 
[org.opensaml.saml.metadata.resolver.impl.PredicateRoleDescriptorResolver] 
Resolved no EntityDescriptors via underlying MetadataResolver, returning 
empty collection
cas_1 | ERROR 
[org.apereo.cas.support.saml.web.idp.profile.builders.enc.SamlIdPObjectSigner] 
Unable to locate any signing credentials for service 
[aai_pionier_net_pl_test]

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