public void updateProjectRoleActors(final ProjectRoleActors projectRoleActors) {
   if (projectRoleActors.getProjectId() == null) {
     // Really the default role actors...
     updateDefaultRoleActors(projectRoleActors);
     return;
   }
   delegate.updateProjectRoleActors(projectRoleActors);
   this.projectRoleActors.remove(toKey(projectRoleActors));
 }