[jboss-dev-forums] [Design of JBoss Web Services] - Why is the UMDM using ConcurrentHashMap?
I noticed a change in trunk that switched from the UMDM from HashMap to
ConcurrentHashMap.
Why was this change made?
The design of the UMDM is that writes are confined to single thread on startup, and all
access after that point is read-only. Switching from HashMap to ConcurrentHashMap adds
unnecessary locking.
-Jason
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