code: public SimpleEntry next()
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
      {
        SibTr.entry(tc, "next", this);
        SibTr.exit(tc, "next", this.next);
      }
      
      return this.next;
    }
docs: Return the next entry in the list
  
  @return