pac4j error in cas management webapp

Frédéric Lohier

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Nov 13, 2020, 9:58:23 AM11/13/20

to CAS Community

Hello,

I am trying to setup the CAS Management webapp 6.2.2 with CAS Server 6.2.5. but I am running into the following issue :

When I log in the CAS Management webapp with a user that exists in the users.json file of the Management webapp, the authentication with CAS is successfull but I get the message "Management app is not available" in the GUI and in the cas-management.log file, I get the error:

ERROR [org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/cas-management].[dispatcherServlet]] - <Servlet.service() for servlet [dispatcherServlet] in context with path [/cas-management] threw exception [Handler dispatch failed; nested exception is java.lang.NoSuchMethodError: 'org.pac4j.core.profile.InternalAttributeHandler org.pac4j.core.profile.ProfileHelper.getInternalAttributeHandler()'] with root cause>

java.lang.NoSuchMethodError: 'org.pac4j.core.profile.InternalAttributeHandler org.pac4j.core.profile.ProfileHelper.getInternalAttributeHandler()'

Any idea where this issue could come from?

From my understanding, pac4j is the component evaluating the identity's attributes coming from CAS server.

With CAS Management in debug log-level, I can see all attributes of the authenticated identity coming from CAS server in the cas-management.log.

Could it be a dependency issue? I build CAS Management with the following gradle properties :

# Versions

casmgmt.version=6.2.2

cas.version=6.2.5

springBootVersion=2.2.8.RELEASE

appServer=-tomcat

sourceCompatibility=11

targetCompatibility=11

gradleMavenPluginVersion=5.1.1

Jérôme LELEU

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Nov 13, 2020, 10:03:51 AM11/13/20

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Hi,

Indeed, pac4j is the security framework used for authentication.

It feels like a dependency issue as the InternalAttributeHandler component has been removed in pac4j v4.1.0.

What are the versions of the pac4j dependencies?

Thanks.

Best regards,

Jérôme

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Frédéric Lohier

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Nov 13, 2020, 10:18:00 AM11/13/20

to CAS Community, leleuj

Hello,

Thank you for looking into this. The full error stack below is indeed mentionning pac4j 4.1.0 (pac4j-core-4.1.0.jar!/:?]) :

ERROR [org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/cas-management].[dispatcherServlet]] - <Servlet.service() for servlet [dispatcherServlet] in context with path [/cas-management] threw exception [Handler dispatch failed; nested exception is java.lang.NoSuchMethodError: 'org.pac4j.core.profile.InternalAttributeHandler org.pac4j.core.profile.ProfileHelper.getInternalAttributeHandler()'] with root cause>

java.lang.NoSuchMethodError: 'org.pac4j.core.profile.InternalAttributeHandler org.pac4j.core.profile.ProfileHelper.getInternalAttributeHandler()'

at org.pac4j.cas.credentials.authenticator.CasAuthenticator.validate(CasAuthenticator.java:82) ~[pac4j-cas-4.0.3.jar!/:?]

at org.pac4j.cas.client.direct.DirectCasClient.retrieveCredentials(DirectCasClient.java:91) ~[pac4j-cas-4.0.3.jar!/:?]

at org.pac4j.core.client.DirectClient.getCredentials(DirectClient.java:42) ~[pac4j-core-4.1.0.jar!/:?]

at org.pac4j.core.engine.DefaultSecurityLogic.perform(DefaultSecurityLogic.java:119) ~[pac4j-core-4.1.0.jar!/:?]

at org.pac4j.springframework.web.SecurityInterceptor.preHandle(SecurityInterceptor.java:120) ~[spring-webmvc-pac4j-4.0.1.jar!/:?]

at org.springframework.web.servlet.HandlerExecutionChain.applyPreHandle(HandlerExecutionChain.java:141) ~[spring-webmvc-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1035) ~[spring-webmvc-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:645) ~[javax.servlet-api-4.0.1.jar!/:4.0.1]

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.6.RELEASE.jar!/:5.2.6.RELEASE]

at javax.servlet.http.HttpServlet.service(HttpServlet.java:750) ~[javax.servlet-api-4.0.1.jar!/:4.0.1]

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-catalina-9.0.37.jar!/:9.0.37]