RemoteHostTrustLoginModule: HostThreadLocal seems to be unset

RemoteHostTrustLoginModule needs HostThreadLocal to work correctly. In 6.0 org.jboss.web.tomcat.security.RemoteHostValve was used to call org.jboss.security.plugins.HostThreadLocal#set.

In 8.1 ist doesn't work and looking at the source RemoteHostValve is (of cause) gone und HostThreadLocal#set doesn't seem to be called anywhere. At least it isn't called directly in any class and debugging doesn't step into this method.