oehme commented on PR #1281:
URL: https://github.com/apache/maven-mvnd/pull/1281#issuecomment-2705773931

   Sorry I had to edit my message above, you probably responded to the first 
version where I had doubted the memory mapping change. The memory mapping was 
the second part of the problem after the file locking. It only mapped size() 
bytes in the constructor and completely ignored if other threads or processes 
expanded it. 
   
   Even if we fixed that by checking the size and remapping the file, I don't 
see much value. This file is small and infrequently read. For reference, Gradle 
also rereads it's registry rather than memory mapping 


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