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

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 Fix For: 11.0.0.Alpha1 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.