On Mar 28, 2012, at 5:42 PM, Vitaly Davidovich wrote:
> I think you can use diamond generic inference when declaring the weak intern 
> set
> 
Done; thanks.
> Also any reason you didn't use WeakHashMap directly with dummy value to 
> simulate the set? Or wrap the WeakHashMap and synchronize the accessors to it
> 
That's been answered already on this thread.

Building collection-like types from reusable components in Java is not a 
fully-solved problem, and the symptom is lots of code copying.  Last time I 
checked, there wasn't even a reusable Map.Entry abstract class.

— John
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