On 9/5/25 12:12 AM, Stephen Colebourne wrote:
Back in March 2023 there was a discussion about the non-deterministic
iteration order of Map.of() and friends:
https://mail.openjdk.org/pipermail/core-libs-dev/2023-March/102865.html
It feels like this discussion should be revisited now that we have
StableValue. Map.of() is one of the few ways (along with method
references and records) that we have at the moment to ensure a chain
of trust through for the JVM so it can constant fold. This should (if
people are aware) push more people to use Map.of() and friends.
Hi Stephen,
What's the connection between Map.of()'s randomized encounter order and StableValue
or the JIT's ability to constant-fold? Are you observing that randomized encounter
order precludes constant folding? Or are you saying that something should change
near the (preview) StableValue.map() API? For example, that it should specify a
particular encounter order, or that its API signature should change?
s'marks
