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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/04/20 10:35:38 UTC

[GitHub] [pulsar] lhotari edited a comment on pull request #10280: Fix thread safety issue in ManagedLedgerImpl

lhotari edited a comment on pull request #10280:
URL: https://github.com/apache/pulsar/pull/10280#issuecomment-823164231


   I did some more research:
   
   There's a blog post from 2014 "All accesses are atomic" https://shipilev.net/blog/2014/all-accesses-are-atomic/ .
   
   There is also [JEP 188: Java Memory Model Update](http://openjdk.java.net/jeps/188) and an InfoQ article ["The OpenJDK Revised Java Memory Model"](https://www.infoq.com/articles/The-OpenJDK9-Revised-Java-Memory-Model/#lowerFullwidthVCR:~:text=JMM9%20%2D%20Read%20And%20Write%20Atomicity%20Problem%20And%20The%20Word%2DTearing%20Problem.). It seems that the Java Memory Model has been revisited for JDK9+, called JMM9 . It's a bit hard to find the consistent documentation since the JLS for JDK 16 hasn't been updated with any changes [in 17.7 of JLS](https://docs.oracle.com/javase/specs/jls/se16/html/jls-17.html#jls-17.7). 


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