RFR: 8030016: HashMap.computeIfAbsent generates spurious access event

Mike Duigou mike.duigou at oracle.com
Thu Dec 12 05:24:43 UTC 2013


Hello all;

In the review for JDK-8029795 Paul Sandoz noted that HashMap.computeIfAbsent would generate a spurious access event for keys mapped to null when the function returned null. This patch corrects that behaviour.

http://cr.openjdk.java.net/~mduigou/JDK-8030016/0/webrev/

The actual regression test is LinkedHashMap/ComputeIfAbsentAccessOrder.java whereas the changes to Map/Defaults are improvements to the existing tests suggested by this bug (though they would not detect it).

Cheers,

Mike


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