java.util.NoSuchElementException问题定位

Iterator 迭代器越界

例子如下：

 Iterator i = set.iterator();
   while (i.hasNext()) {
    System.out.println(i.next());
    pw.println(i.next());
   }

while(iter.hasNext()) {
              ArrayList<SprintUserStory> undoneUserStoriesList = SprintUtil.getUndoneUserStoriesList(iter.next().getID(),iter.next().getPkey());
              if(undoneUserStoriesList.size() >){
                  willdonefeautre--;
               }

上述错误均是因为两次.next造成的。可修改为

while (i.hasNext()) {
    String ss = (String) i.next();
    System.out.println(ss);
    pw.println(ss);
   }

while (iter.hasNext()) {
               JIRAFeature jirafeaturetemp = iter.next();
               ArrayList<SprintUserStory> undoneUserStoriesList = SprintUtil.getUndoneUserStoriesList(jirafeaturetemp.getID(),jirafeaturetemp.getPkey());
                if(undoneUserStoriesList.size() >){
                   willdonefeautre--;
                }