Doh, I didn't post  the actual error.  Here it is:

ERROR 
[org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/cas-web].[dispatcherServlet]]
 
- <Servlet.service() for servlet [dispatcherServlet] in context with path 
[/cas-web] threw exception [Request processing failed; nested exception is 
org.springframework.webflow.execution.ActionExecutionException: Exception 
thrown executing 
org.apereo.cas.adaptors.duo.web.flow.action.DuoSecurityPrepareWebLoginFormAction@5c3e7128
 
in state 'viewLoginFormDuo' of flow 'mfa-duo' -- action execution 
attributes were 'map['resolvedAuthenticationEvents' -> list[mfa-duo]]'] 
with root cause>
java.lang.NullPointerException: null
    at java.util.Objects.requireNonNull(Objects.java:221) ~[?:?]
    at 
org.apereo.cas.adaptors.duo.web.flow.action.DuoSecurityPrepareWebLoginFormAction.doExecute(DuoSecurityPrepareWebLoginFormAction.java:31)
 
~[cas-server-support-duo-core-6.2.0-RC5.jar!/:6.2.0-RC5]
    at 
org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:188)
 
~[spring-webflow-2.5.1.RELEASE.jar!/:2.5.1.RELEASE]

Thanks in advance.


On Thursday, June 4, 2020 at 4:18:07 PM UTC-4, mba...@scad.edu wrote:
>
> I'm testing out 6.2 RC5 and am getting an error with Duo: 
>
> DEBUG [org.apereo.cas.web.FlowExecutionExceptionResolver] - <Ignoring the 
> received exception 
> [org.springframework.webflow.execution.ActionExecutionException: Exception 
> thrown executing 
> org.apereo.cas.adaptors.duo.web.flow.action.DuoSecurityPrepareWebLoginFormAction@5afaae7e
>  
> in state 'viewLoginFormDuo' of flow 'mfa-duo' -- action execution 
> attributes were 'map['resolvedAuthenticationEvents' -> list[mfa-duo]]'] due 
> to a type mismatch with handler 
> [[FlowHandlerMapping.DefaultFlowHandler@5f5b9239]]>
>
> I'm using pretty much the same Duo configuration from 6.0.x (which is 
> working), but switched from camelCase to dashes as listed in the latest 
> development documentation.  I got the same error with camel case too.
>
> #####  DUO ####################################
> cas.authn.mfa.duo[0].duo-secret-key=${CAS_DUO_SKEY}
> cas.authn.mfa.duo[0].rank=0
> cas.authn.mfa.duo[0].duo-application-key=${CAS_DUO_AKEY}
> cas.authn.mfa.duo[0].duo-integration-key=${CAS_DUO_IKEY}
> cas.authn.mfa.duo[0].duo-api-host=${CAS_DUO_HOST}
> cas.authn.mfa.duo[0].trusted-device-enabled=false
> cas.authn.mfa.duo[0].id=mfa-duo
> cas.authn.mfa.duo[0].name=SCAD DUO
> cas.authn.mfa.duo[0].order=1
> # but this one stays camelCase
> cas.authn.mfa.groovyScript=file:/etc/cas/ScadMfa.groovy
>
> And I can actually see a response from Duo early in the log that indicates 
> it retrieved my account info.
>
> Also, I am using the default theme with no changes.
>
> Any help would be appreciated. 
>
> Thank you,
> Mike
>
>
>

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