oVirt's ovirt-engine uses an authentication plugin [1] for management interface that recently after upgrading to Wildfly 11 stopped working. The reason is the sharedState passed to the plugin's init method is now null.

A current workaround this would be to avoid adding the plugin into the shareState, but that means any delegating plugin would fail to find this plugin and possibly other bad stuff I'm not aware of.

[1] https://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=backend/manager/modules/auth-plugin/src/main/java/org/ovirt/engine/core/jboss_auth_plugin/OvirtAuthPlugIn.java;h=fe2fcb400c0c81d661c03fac173d6ad416b42b9d;hb=95d62f8d7879b1863f2db74f88affb246cf94b37#l26