XiaoyiPeng commented on PR #4350:
URL: https://github.com/apache/rocketmq/pull/4350#issuecomment-1135337506

   @ni-ze , @HScarb , 
   
   Thanks for your review. 
   But IMO,  For code consistency, I recommend not changing this method 
`ThreadLocalIndex#incrementAndGet()`, because this method is used in many 
places.
   In most scenarios, it determine whether the result returned is positive or 
negative after the call, as  shown below: 
   
   
![image](https://user-images.githubusercontent.com/8653312/169936803-9ed90df7-35ff-4b8e-8c3c-225c0cee838f.png)
   
   And it we changing this method(`ThreadLocalIndex#incrementAndGet()`), The 
variable `index` it returned  may still be a positive number, eg: 
`Integer.MAX_VALUE`.  when `Math.abs(++index)` is called, we still need to 
judge if this value is negative, just looks like in the screenshot.
   
   Hi @panzhi33 , @RongtongJin  what's your opinion?
   
   


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