CAS + Pac4j + Okta

[Adarsh]

Hi, I am trying to setup a CAS (6.5.0-SNAPSHOT) server with PAC4j and Okta. When I try to start the server (boorRun / war in a tomcat webapp) I get the following error

[[33m2022-01-28 17:59:41,315 WARN [org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext] - <Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casServletWebServerFactory' defined in class path resource [org/apereo/cas/config/CasEmbeddedContainerTomcatConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory]: Factory method 'casServletWebServerFactory' threw exception; nested exception is java.lang.NullPointerException>^[[m

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casServletWebServerFactory' defined in class path resource [org/apereo/cas/config/CasEmbeddedContainerTomcatConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory]: Factory method 'casServletWebServerFactory' threw exception; nested exception is java.lang.NullPointerException

I have no idea why this is happening, any help would be awesome as I am stuck,

My implementation

1) I downloaded the Cas Overlay

2) I add this implementation to my build.gradle file

implementation "org.apereo.cas:cas-server-support-json-service-registry"
implementation "org.apereo.cas:cas-server-support-pac4j-webflow"

3) Added the following properties to cas.properties

cas.authn.pac4j.saml[0].keystorePassword=<password>
cas.authn.pac4j.saml[0].privateKeyPassword=<password>
cas.authn.pac4j.saml[0].serviceProviderEntityId=https://localhost:8443
cas.authn.pac4j.saml[0].keystorePath=<path to samlKeystore.jks>
cas.authn.pac4j.saml[0].serviceProviderMetadataPath=<path to cas_metadata.xml>
cas.authn.pac4j.saml[0].identityProviderMetadataPath=<path to okta-metadata.xml>
cas.authn.pac4j.saml[0].clientName=<client name>
cas.authn.pac4j.saml[0].destinationBinding=urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST

4) this is my json configuration file

{

  "@class" : "org.apereo.cas.services.RegexRegisteredService",

  "serviceId" : "^(https?|imaps?|http?)://.*",

  "name" : "<application_name>",

  "id" : 1,

  "evaluationOrder" : 1,

  "logo" : "logo url",

  "accessStrategy" : {

    "@class" : "org.apereo.cas.services.DefaultRegisteredServiceAccessStrategy",

    "delegatedAuthenticationPolicy" : {

      "@class" : "org.apereo.cas.services.DefaultRegisteredServiceDelegatedAuthenticationPolicy",

      "allowedProviders" : [ "java.util.ArrayList", [ "app-saml" ] ]

    }

  }

}

[Adarsh]

Add server.port=8443 to the cas.properties file to over come this error. Hopefully it will help someone some day as this is not mentioned in any documentation anywhere.