Java示例最后阻止捕获异常

public class ExceptionDemo2 {

   public static void main(String[] argv) {

      new ExceptionDemo2().doTheWork();

   }

   public void doTheWork() {

      Object o = null;

      for (int i = 0; i<5; i++) {

         try {

            o = makeObj(i);

         } catch (IllegalArgumentException e) {

            System.err.println("Error: ("+ e.getMessage()+").");

            return;   

         } finally {

            System.err.println("All done");

            if (o==null)

            System.exit(0);

         }

         System.out.println(o);

      }

   }

   public Object makeObj(int type) throws IllegalArgumentException {

      if (type == 1)throw new IllegalArgumentException("Don't like type " + type);

      return new Object();

   }

}