About Question enthuware.ocajp.i.v7.2.1063 :

[ETS User]

  public void store() throws IOException{     return Util.store(stock);   }
Not compile, why have a return type.

Kind regards

[admin]

You are right. There is no need for "return". Although irrelevant for the question, it should be fixed asap.

thank you for your feedback!