Java ConcurrentModificationException万能解决方案

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在遍历集合的时候,满足条件的话,需要删除当前元素和相关元素,就容易出现这种错误

for (ChangeResultIncome oldRi : newResultIncome) {            if (oldRi.getLineStatus().equals(AITypeEnum.OFFSET.getCode())) {                inner:for (ChangeResultIncome newRi : newResultIncome) {                    if(oldRi.exactMatchCC(newRi)                            && oldRi.getBeginDate().compareTo(newRi.getBeginDate())==0                            && oldRi.getEndDate().compareTo(newRi.getEndDate())==0                            && oldRi.getAmount() == 0-newRi.getAmount()                            && newRi.getLineStatus().equals(AITypeEnum.NEW.getCode())){                        newResultIncome.remove(oldRi);                        newResultIncome.remove(newRi);                        break inner;                    }                }            }        }

解决方案为:将需要删除的元素存到一个集合中,最后再统一删除

        List<ChangeResultIncome> deleteList = new ArrayList<>();        for (ChangeResultIncome oldRi : newResultIncome) {            if (oldRi.getLineStatus().equals(AITypeEnum.OFFSET.getCode())) {                inner:for (ChangeResultIncome newRi : newResultIncome) {                    if(oldRi.exactMatchCC(newRi)                            && oldRi.getBeginDate().compareTo(newRi.getBeginDate())==0                            && oldRi.getEndDate().compareTo(newRi.getEndDate())==0                            && oldRi.getAmount() == 0-newRi.getAmount()                            && newRi.getLineStatus().equals(AITypeEnum.NEW.getCode())){                        deleteList.add(oldRi);                        deleteList.add(newRi);                        break inner;                    }                }            }        }        newResultIncome.removeAll(deleteList);

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