There is wrong AdvancedADLdap mapping in ModulesMap. In ModulesMap is "AdvancedAdLdap", but in documentation is "AdvancedADLdap". https://github.com/jbossas/jboss-eap/blob/144d1d15f94f19914e4230601366adc22473c846/security/subsystem/src/main/java/org/jboss/as/security/ModulesMap.java#L105 https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Application_Platform/6.4/html-single/Security_Guide/index.html#topic4732_advancedadldap We suggest some like this for backward compatibility: Add one extra mapping to ModulesMap with right mapping and leave there old mapping too. Some old app can use this old wrong mapping. put("AdvancedAdLdap", AdvancedADLoginModule.class.getName()); put("AdvancedADLdap", AdvancedADLoginModule.class.getName());