I made sure adapter is installed correctly. Now do not see error for Class not found. Now getting following error. Mentioning keycloak.json below. Would appreciate if you could pls let me know how it can be fixed ? 13:44:47,283 WARN [org.keycloak.events] (default task-115) type=CODE_TO_TOKEN_ERROR, realmId=master, clientId=third-party, userId=null, ipAddress=127.0.0.1, error=invalid_client_credentials *_Exception_* 13:44:47,284 ERROR [io.undertow.request] (default task-114) UT005023: Exception handling request to /oauth-client/pull_data.jsp: org.apache.jasper.JasperException: java.lang.RuntimeException: org.keycloak.adapters.ServerRequest$HttpFailure at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at io.undertow.jsp.JspFileHandler.handleRequest(JspFileHandler.java:32) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72) at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50) at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.RuntimeException: org.keycloak.adapters.ServerRequest$HttpFailure at org.keycloak.example.oauth.ProductDatabaseClient.getTokenResponse(ProductDatabaseClient.java:87) at org.apache.jsp.pull_005fdata_jsp._jspService(pull_005fdata_jsp.java:65) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:69) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:366) ... 31 more Caused by: org.keycloak.adapters.ServerRequest$HttpFailure at org.keycloak.adapters.ServerRequest.error(ServerRequest.java:211) at org.keycloak.adapters.ServerRequest.invokeAccessCodeToToken(ServerRequest.java:94) at org.keycloak.servlet.ServletOAuthClient.resolveBearerToken(ServletOAuthClient.java:41) at org.keycloak.servlet.ServletOAuthClient.getBearerToken(ServletOAuthClient.java:146) at org.keycloak.example.oauth.ProductDatabaseClient.getTokenResponse(ProductDatabaseClient.java:70) ... 35 more *_Kyecloak.json_* { "realm": "master", "realm-public-key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsqzFVCG8nltfcTBL70E5wk2Lh+yu0s5pUvl7rheFBeCb4mSEBwFqLAOIRN3iHVC+A7F8PSp4ZlpqQIBiFXfFiUUSaLfVPVoRapKfi0Wl4+MScFcW2VL4uiIZWR0wIlg0HCZ8EOrHLA6myKi5pc/jhEf7i1FgG+QiTvemQSv9TvLF1xXAXoiNvQbbGzH0t2Pmau9woyHwbiepLp+8pxxIxYupJtBFU+cTc65Rs2wJOmd9snCQQbhTOxeoJLT9J/JkOQcrJUVEracGRx7ebj2pjmUrKx2sAqFH4sCyinODPfFh2OUWUaTSoIN16X2QRyJPbltChjwiu4U2ajD56L5teQIDAQAB", "auth-server-url": "http://localhost:8080/auth", "ssl-required": "external", "resource": "third-party", "credentials": { "secret": "49f899fa-6208-4eb6-b4fe-e4a8c9b02332" } } On Wednesday, October 14, 2015 12:36 PM, Harish Kumar <harish_k_s007(a)yahoo.com&gt; wrote: Thanks Marko for response. I checked keycloak-adapter-core-1.5.0.final.jar is present at ( /modules/system/layers/base/org/keycloak-adapter-core). Few things i observed, Not sure if they are related just mentioning #1. After 1.1, release httpcomponents (modules/org/apache) has changed jars from 4.2. #2. No start() method for ServletOAuthClient ( it was there in Bootstrap.java in 1.1) Pls let me know if i am missing anything ? Thanks, Harish On Wednesday, October 14, 2015 2:01 AM, Marko Strukelj <mstrukel(a)redhat.com&gt; wrote: The exception seems to indicate that your adapter was not proprerly installed. Make sure that you can see the following file underneath your Wildfly 9 home directory (where you deploy your third party app): modules/system/layers/base/org/keycloak/keycloak-adapter-core/main/keycloak-adapter-core-1.5.0.Final.jar It should be there as a result of properly unpacking keycloak-wf9-adapter-dist-1.5.0.Final.zip <http://www.redhat.com/j/elqNow/elqRedir.htm?ref=http://downloads.jboss.or... into your Wildfly 9. I suppose your mentioning keycloak-appliance-dist-all-1.1.0.Final is a reference to a version that used to work for you some time ago, and not what you're using now. On Wed, Oct 14, 2015 at 4:36 AM, Harish Kumar <harish_k_s007(a)yahoo.com <mailto:harish_k_s007@yahoo.com>> wrote: I was trying out examples from keycloak 1.5.0, specifically i was trying third-party example. Same example worked fine while i took distribution (keycloak-appliance-dist-all-1.1.0.Final) I did following steps. 1. Installed keycloak 1.5.0 2. Set third-party client with valid redirect URL as /oauth-client/* 3. Keycloak Json mentioned below (towards end of that email) 4. Initially when i deployed then i got error (No class definition error :Lorg/keycloak/servlet/ServletOAuthClient) then added files from keycloak-wf9-adapter-dist-1.5.0.Final.zip <http://www.redhat.com/j/elqNow/elqRedir.htm?ref=http://downloads.jboss.or...;. 5. After that application could deploy but when i type http://localhost:8080/oauth-client/ and click on "pull data" then getting error. I would appreciate if you could pls let me know how this error can be fixed ? Any module missing ? javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/keycloak/adapters/ServerRequest$HttpFailure org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:777) org.apache.jsp.redirect_jsp._jspService(redirect_jsp.java:63) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:69) javax.servlet.http.HttpServlet.service(HttpServlet.java:790) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:366) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259) javax.servlet.http.HttpServlet.service(HttpServlet.java:790) io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86) *_Keycloak json_* { "realm": "demo", "realm-public-key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuPt1q5aq8xZGUZVHAwj7xW6vJ20qk/awf6kK6NqQ2CvblWoSYyZOeLF+NpGue3Wn5r4ImKVUST89wPMrO83Y5st31Zpe4kZKoe8kvUj7tI6eeRrUsEsUWwpZ6I5yR5uVgj+8hJ9TaZQNAgB8zK0FvAxmu5bO+mq7c6eDEsYbcuMt3X+VZrkD36toaWM+gXPqziVkiNxp8DdS2TB8EN2J+MBGQRkbG6t6zdVMF0XrWpoT2UeMeFQ05I5lk1mlVupa6TJCpeH7sZBL2pgR+6TRDhViShur5PZUepHayS45PjPYPMsejfGZInRjHl/aqGcRK8YkXPjVDqPSp0xIa/QXYwIDAQAB", "auth-server-url": "http://localhost:8080/auth", "ssl-required": "external", "resource": "third-party", "credentials": { "secret": "7269abc3-4de8-4be7-b881-8c3fcacf4ef4" } } _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org <mailto:keycloak-user@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/keycloak-user _______________________________________________ keycloak-dev mailing list keycloak-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-dev