john.r.rose at oracle.com
Thu Apr 18 15:43:31 PDT 2013
On Apr 18, 2013, at 2:54 PM, Brian Goetz <brian.goetz at oracle.com> wrote:
> Capturing stateless (non-capturing) lambdas is essentially free.
All the examples I gave are (intentionally) the stateless kind.
It seems to me that most times I've wanted getOrDefault I've had a specific constant sentinel value in mind.
All-time favorite: My map is a histogram, and I want to turn those pesky nulls into Integer.valueOf(0) as quickly as possible. The supplier-based version of that is the same cost as the T-value-based.
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