# File lib/orbjson.rb, line 46
    def self.registered_classses
      @@registry.keys.map{ |k| 
       $roy_logger.debug( "[#{__LINE__}] self.registered_classses  has @@registry[k].to_s   #{@@registry[k].to_s}" ) 
        cls = @@registry[k].class.to_s 
        ( cls  =~ /Needle::/ || cls  =~ /^Hash$/ || cls  =~ /^[a-z]/ )  ?  nil : @@registry[k].class.to_s
      }.compact

    end