[jboss-jira] [JBoss JIRA] (WFLY-5719) Using Kerberos as login module results in LoginException: unable to find LoginModule class

[Brett Prucha (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-5719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13132307#comment-13132307 ] 

Brett Prucha commented on WFLY-5719:
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Ahh that would explain it. I went with option 1 but did find the Kerberos class in the negotiation module and thought about trying to explicitly include that module but that didn't seem correct as I figured it should have been loaded by default. Hence why I concluded a class loading problem. What do I gain by using the Wildfly provided login module other than being more JVM independent? I can't seem to find any documentation on it.

> Using Kerberos as login module results in LoginException: unable to find LoginModule class
> ------------------------------------------------------------------------------------------
>
>                 Key: WFLY-5719
>                 URL: https://issues.jboss.org/browse/WFLY-5719
>             Project: WildFly
>          Issue Type: Bug
>          Components: Security
>    Affects Versions: 9.0.2.Final, 10.0.0.CR4
>         Environment: Windows Server 2012 R2, Java 8 update 40
>            Reporter: Brett Prucha
>            Assignee: Darran Lofthouse
>
> When using <login-module code="Kerberos" flag="required">, the following exception is thrown:
> javax.security.auth.login.LoginException: unable to find LoginModule class: org.jboss.security.negotiation.KerberosLoginModule
> When replacing the login module with the one provided by the JVM:
> <login-module code="com.sun.security.auth.module.Krb5LoginModule" flag="required">
> no exception is thrown and authentication works as expected.
> The Kerberos login module works in Wildfly 8.2.0. It appears the class loading or something similar has changed in 9.x onwards to cause this to stop working.



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