Dear CAS community and members around the world,

I am from an University in Vietnam. I got below error while integrate my 
CAS server with OpenAthens via SAML IDP. Please help me. Thanks a lot.

2022-05-19 11:12:54,217 WARN 
[org.opensaml.xmlsec.impl.BasicSignatureSigningParametersResolver] - 
<Validation failure: Unable to resolve signing credential>
2022-05-19 11:12:54,218 ERROR 
[org.springframework.boot.web.support.ErrorPageFilter] - <Forwarding to 
error page from request [/idp/profile/SAML2/Callback.+] due to exception 
[org.opensaml.saml.common.SAMLException: No signature signing parameter is 
available]>
org.apereo.cas.support.saml.SamlException: 
org.opensaml.saml.common.SAMLException: No signature signing parameter is 
available
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner.encode(BaseSamlObjectSigner.java:128)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner$$FastClassBySpringCGLIB$$1fa50f6e.invoke(<generated>)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) 
~[spring-core-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner$$EnhancerBySpringCGLIB$$3fdada57.encode(<generated>)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.response.SamlProfileSaml2ResponseBuilder.buildResponse(SamlProfileSaml2ResponseBuilder.java:111)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.response.SamlProfileSaml2ResponseBuilder.buildResponse(SamlProfileSaml2ResponseBuilder.java:48)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.response.BaseSamlProfileSamlResponseBuilder.build(BaseSamlProfileSamlResponseBuilder.java:80)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at sun.reflect.GeneratedMethodAccessor548.invoke(Unknown Source) ~[?:?]
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 
~[?:1.8.0_181]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181]
    at 
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at com.sun.proxy.$Proxy258.build(Unknown Source) ~[?:?]
    at 
org.apereo.cas.support.saml.web.idp.profile.AbstractSamlProfileHandlerController.buildSamlResponse(AbstractSamlProfileHandlerController.java:606)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.sso.SSOSamlProfileCallbackHandlerController.handleCallbackProfileRequest(SSOSamlProfileCallbackHandlerController.java:117)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at sun.reflect.GeneratedMethodAccessor556.invoke(Unknown Source) ~[?:?]
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 
~[?:1.8.0_181]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181]
    at 
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:741)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
 
~[spring-aop-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apereo.cas.support.saml.web.idp.profile.sso.SSOSamlProfileCallbackHandlerController$$EnhancerBySpringCGLIB$$253e197b.handleCallbackProfileRequest(<generated>)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at sun.reflect.GeneratedMethodAccessor556.invoke(Unknown Source) ~[?:?]
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 
~[?:1.8.0_181]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181]
    at 
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) 
~[servlet-api.jar:?]
    at 
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
 
~[spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) 
~[servlet-api.jar:?]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
~[tomcat-websocket.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apereo.cas.web.support.AuthenticationCredentialsLocalBinderClearingFilter.doFilter(AuthenticationCredentialsLocalBinderClearingFilter.java:28)
 
~[cas-server-core-web-5.2.5.jar:5.2.5]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apereo.cas.security.RequestParameterPolicyEnforcementFilter.doFilter(RequestParameterPolicyEnforcementFilter.java:261)
 
~[cas-server-security-filter-2.0.7.jar:2.0.7]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apereo.cas.security.ResponseHeadersEnforcementFilter.doFilter(ResponseHeadersEnforcementFilter.java:245)
 
~[cas-server-security-filter-2.0.7.jar:2.0.7]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:111)
 
~[spring-boot-actuator-1.5.12.RELEASE.jar:1.5.12.RELEASE]
    at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apereo.cas.logging.web.ThreadContextMDCServletFilter.doFilter(ThreadContextMDCServletFilter.java:93)
 
~[cas-server-core-logging-5.2.5.jar:5.2.5]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106)
 
~[spring-boot-actuator-1.5.12.RELEASE.jar:1.5.12.RELEASE]
    at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:117)
 
~[spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE]
    at 
org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.java:61)
 
~[spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE]
    at 
org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:92)
 
~[spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE]
    at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 
~[spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
    at 
org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:110)
 
~[spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apereo.inspektr.common.web.ClientInfoThreadLocalFilter.doFilter(ClientInfoThreadLocalFilter.java:66)
 
~[inspektr-common-1.8.2.GA.jar:1.8.2.GA]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
 
~[log4j-web-2.9.1.jar:2.9.1]
    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
 
~[catalina.jar:8.5.31]
    at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) 
~[catalina.jar:8.5.31]
    at 
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) 
~[tomcat-coyote.jar:8.5.31]
    at 
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
 
~[tomcat-coyote.jar:8.5.31]
    at 
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
 
~[tomcat-coyote.jar:8.5.31]
    at 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468)
 
~[tomcat-coyote.jar:8.5.31]
    at 
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) 
~[tomcat-coyote.jar:8.5.31]
    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
~[?:1.8.0_181]
    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
~[?:1.8.0_181]
    at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 
~[tomcat-util.jar:8.5.31]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
Caused by: org.opensaml.saml.common.SAMLException: No signature signing 
parameter is available
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner.buildSignatureSigningParameters(BaseSamlObjectSigner.java:246)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner.prepareSecurityParametersContext(BaseSamlObjectSigner.java:190)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner.encode(BaseSamlObjectSigner.java:122)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    ... 124 more
Caused by: org.opensaml.saml.common.SAMLException: No signature signing 
parameter is available
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner.buildSignatureSigningParameters(BaseSamlObjectSigner.java:234)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner.prepareSecurityParametersContext(BaseSamlObjectSigner.java:190)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    at 
org.apereo.cas.support.saml.web.idp.profile.builders.enc.BaseSamlObjectSigner.encode(BaseSamlObjectSigner.java:122)
 
~[cas-server-support-saml-idp-5.2.5.jar:5.2.5]
    ... 124 more

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