Jay,

Are there multiple CAS servers? Could this be a result of the load balancer 
switching between CAS servers for each request (load form, post form)?
You may need to cluster your tomcats or set load balancer to be sticky.

Ray

On Thu, 2018-05-17 at 22:42 -0700, Jay wrote:
Hi Ray,


Yes, it does not allow the user to be validated and login successfully. It 
redirects back to login page only.

Any suggestion to look into specifically.

We see this issue when we hit the load balance url but not when we directly 
access the server url.

Thanks,
Jay

On Thursday, May 17, 2018 at 11:46:17 AM UTC-5, rbon wrote:
Jay,

I seem to recall a message like this was produced because of a 'feature' to 
clear out the flow if it sat for too long. It would show up periodically and 
had no bearing on how long the user took to log in.
Does it cause a problem?

Ray

On Thu, 2018-05-17 at 01:16 -0700, Jay wrote:
Hello everyone,

We have CAS application running in Tomcat in two different instances and load 
balanced by a F5 url.
Any application is configured with the F5 url for login authentication and 
authorization.

We have customized the url to https://<cas.server>/las/v3/login (Naming the war 
file as las#v3.war sets the context path here)

When I use individual server instance login/logout works absolutely fine. (i.e. 
<cas.server.instance1>:<port>/las/v3/login )

We see below error after we give the user credential and clink on login button.

2018-05-17 01:49:36,786 DEBUG 
[org.apereo.cas.web.FlowExecutionExceptionResolver] - <Error getting flow 
information for URL 
[/las/v3/login?service=http%3A%2F%2Flocalhost%3A3001%2Flogin%3Fdestination%3D%252Fconfiguration%252Faccounts%252F34864%252FproductLines%252FPrismPostPD%252Ftemplates%252F311]>
 [m
org.apereo.spring.webflow.plugin.ClientFlowExecutionRepositoryException: Error 
decoding flow execution
at 
org.apereo.spring.webflow.plugin.ClientFlowExecutionRepository.getFlowExecution(ClientFlowExecutionRepository.java:99)
 ~[spring-webflow-client-repo-1.0.3.jar:1.0.3]
at 
org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:168)
 ~[spring-webflow-2.4.7.RELEASE.jar:2.4.7.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[?:1.8.0_31]
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at 
org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:216) 
~[spring-core-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.cloud.context.scope.GenericScope$LockedScopedProxyFactoryBean.invoke(GenericScope.java:470)
 ~[spring-cloud-context-1.3.0.RELEASE.jar:1.3.0.RELEASE]
at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
 ~[spring-aop-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
 ~[spring-aop-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at com.sun.proxy.$Proxy165.resumeExecution(Unknown Source) ~[?:?]
at 
org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:253)
 ~[spring-webflow-2.4.7.RELEASE.jar:2.4.7.RELEASE]
at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
 ~[spring-webmvc-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
 ~[spring-webmvc-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
 ~[spring-webmvc-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
 ~[spring-webmvc-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) 
~[servlet-api.jar:?]
at 
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
 ~[spring-webmvc-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) 
~[servlet-api.jar:?]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
~[tomcat-websocket.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apereo.cas.web.support.AuthenticationCredentialsLocalBinderClearingFilter.doFilter(AuthenticationCredentialsLocalBinderClearingFilter.java:30)
 ~[cas-server-core-web-api-5.3.0-RC2.jar:5.3.0-RC2]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apereo.cas.security.RequestParameterPolicyEnforcementFilter.doFilter(RequestParameterPolicyEnforcementFilter.java:261)
 ~[cas-server-security-filter-2.0.10.2.jar:2.0.10.2]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apereo.cas.security.ResponseHeadersEnforcementFilter.doFilter(ResponseHeadersEnforcementFilter.java:237)
 ~[cas-server-security-filter-2.0.10.2.jar:2.0.10.2]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apereo.cas.security.AddResponseHeadersFilter.doFilter(AddResponseHeadersFilter.java:94)
 ~[cas-server-security-filter-2.0.10.2.jar:2.0.10.2]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110)
 ~[spring-boot-actuator-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:108)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apereo.cas.logging.web.ThreadContextMDCServletFilter.doFilter(ThreadContextMDCServletFilter.java:91)
 ~[cas-server-core-logging-5.3.0-RC2.jar:5.3.0-RC2]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:106)
 ~[spring-boot-actuator-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:115)
 ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at 
org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.java:59)
 ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at 
org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:90)
 ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
 ~[spring-web-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:108)
 ~[spring-boot-1.5.9.RELEASE.jar:1.5.9.RELEASE]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apereo.inspektr.common.web.ClientInfoThreadLocalFilter.doFilter(ClientInfoThreadLocalFilter.java:66)
 ~[inspektr-common-1.8.1.GA.jar:1.8.1.GA<http://1.8.1.GA>]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
 ~[log4j-web-2.10.0.jar:2.10.0]
at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
 ~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) 
~[catalina.jar:8.0.29]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) 
~[catalina.jar:8.0.29]
at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
 ~[catalina.jar:8.0.29]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) 
~[catalina.jar:8.0.29]
at 
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
 ~[tomcat-coyote.jar:8.0.29]
at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
 ~[tomcat-coyote.jar:8.0.29]
at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:277)
 ~[tomcat-coyote.jar:8.0.29]
at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
~[?:1.8.0_31]
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
~[?:1.8.0_31]
at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 ~[tomcat-util.jar:8.0.29]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_31]
Caused by: java.io.IOException: Decryption error
at 
org.apereo.spring.webflow.plugin.EncryptedTranscoder.decode(EncryptedTranscoder.java:107)
 ~[spring-webflow-client-repo-1.0.3.jar:1.0.3]
at 
org.apereo.spring.webflow.plugin.ClientFlowExecutionRepository.getFlowExecution(ClientFlowExecutionRepository.java:94)
 ~[spring-webflow-client-repo-1.0.3.jar:1.0.3]
... 90 more
Caused by: java.lang.IllegalArgumentException: Null input buffer
at javax.crypto.Cipher.doFinal(Cipher.java:2117) ~[?:1.8.0_25]
at 
org.apereo.cas.util.cipher.BaseBinaryCipherExecutor.decode(BaseBinaryCipherExecutor.java:83)
 ~[cas-server-core-util-api-5.3.0-RC2.jar:5.3.0-RC2]
at 
org.apereo.cas.util.cipher.BaseBinaryCipherExecutor.decode(BaseBinaryCipherExecutor.java:30)
 ~[cas-server-core-util-api-5.3.0-RC2.jar:5.3.0-RC2]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_31]
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
~[?:1.8.0_31]
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 ~[?:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_31]
at 
org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:216) 
~[spring-core-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.cloud.context.scope.GenericScope$LockedScopedProxyFactoryBean.invoke(GenericScope.java:470)
 ~[spring-cloud-context-1.3.0.RELEASE.jar:1.3.0.RELEASE]
at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
 ~[spring-aop-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at 
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
 ~[spring-aop-4.3.14.RELEASE.jar:4.3.14.RELEASE]
at com.sun.proxy.$Proxy161.decode(Unknown Source) ~[?:?]
at 
org.apereo.cas.web.flow.executor.WebflowCipherBean.decrypt(WebflowCipherBean.java:36)
 ~[cas-server-core-webflow-api-5.3.0-RC2.jar:5.3.0-RC2]
at 
org.apereo.spring.webflow.plugin.EncryptedTranscoder.decode(EncryptedTranscoder.java:105)
 ~[spring-webflow-client-repo-1.0.3.jar:1.0.3]
at 
org.apereo.spring.webflow.plugin.ClientFlowExecutionRepository.getFlowExecution(ClientFlowExecutionRepository.java:94)
 ~[spring-webflow-client-repo-1.0.3.jar:1.0.3]
... 90 more


Any help in this regards would be much appreciated.

Thanks,
Jay

--
Ray Bon
Programmer analyst
Development Services, University Systems
2507218831 | CLE 019 | [email protected]<javascript:>


--
Ray Bon
Programmer analyst
Development Services, University Systems
2507218831 | CLE 019 | [email protected]

-- 
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