code: public static byte[] externalize(Name name) {
          return externalize(name.getByteArray(), name.getByteOffset(), name.getByteLength());
      }
docs: Return external representation of given name, converting '/' to '.'.
  
  Note: the naming is the inverse of that used by JVMS 4.2 The Internal Form Of Names,
  which defines "internal name" to be the form using "/" instead of "."