weizijun commented on PR #14527:
URL: https://github.com/apache/lucene/pull/14527#issuecomment-2863408186

   > I don't understand this. How does the FloatArrayList bypass the 
overallocation possible via `ArrayUtils.grow`? Its the same structure right? 
and for every node there is a score.
   
   maxSize controls the total number of array values, so if the length of 
ArrayUtils.grow exceeds maxSize, the actual value will not exceed maxSize.
   
   However, the nodes() method of NeighborArray returns nodes.buffer, so 
maxSize cannot control the int array. Therefore, a MaxSizedIntArrayList class 
is needed to ensure that the length of the int array can overflow maxSize.


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