code: public boolean recordClosurePrimitiveId(String closurePrimitiveId) {
      if (closurePrimitiveId != null && currentInfo.getClosurePrimitiveId() == null) {
        currentInfo.setClosurePrimitiveId(closurePrimitiveId);
        populated = true;
        return true;
      } else {
        return false;
      }
    }
docs: Records an identifier for a Closure Primitive. function.
  
  @return {@code true} If the id was successfully updated.