I am running wso2 saml SSO sample(travelocity.com) which is running fine with saml. But when I configured oAuth in wso2is and set EnableSAML2Grant=true in travelocity property file, I am getting the following error
org.wso2.carbon.identity.sso.agent.exception.SSOAgentException: Error while retrieving OAuth2 access token using SAML2 grant type at org.wso2.carbon.identity.sso.agent.oauth2.SAML2GrantAccessTokenRequestor.getAccessToken(SAML2GrantAccessTokenRequestor.java:63) at org.wso2.carbon.identity.sso.agent.SSOAgentFilter.doFilter(SSOAgentFilter.java:135) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1916) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:279) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:273) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1472) at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:213) at sun.security.ssl.Handshaker.processLoop(Handshaker.java:913) at sun.security.ssl.Handshaker.process_record(Handshaker.java:849) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1035) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1344) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355) at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1093) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250) at org.wso2.carbon.identity.sso.agent.oauth2.SAML2GrantAccessTokenRequestor.executePost(SAML2GrantAccessTokenRequestor.java:88) at org.wso2.carbon.identity.sso.agent.oauth2.SAML2GrantAccessTokenRequestor.getAccessToken(SAML2GrantAccessTokenRequestor.java:50) ... 18 more Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:385) at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) at sun.security.validator.Validator.validate(Validator.java:260) at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326) at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231) at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1454) ... 31 more Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:196) at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:268) at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380) ... 37 more
