JEP 180: Handle Frequent HashMap Collisions with Balanced Trees

Tom Hawtin tom.hawtin at
Mon Apr 15 16:34:23 UTC 2013

On 05/04/2013 19:08, mark.reinhold at wrote:
> Posted:

If you're using WeakHashMap with types that (may) override 
equals/hashCode you have bigger problems. You almost certainly want 
"identity" semantics (violating the java.util.Map contract) and quite 
possibly concurrency.


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