[code-reflection] RFR: Bytecode locals compaction [v3]

[Paul Sandoz]

On Wed, 11 Sep 2024 08:07:51 GMT, Adam Sotona <asotona at openjdk.org> wrote:

>> src/java.base/share/classes/java/lang/reflect/code/bytecode/BytecodeGenerator.java line 355:
>> 
>>> 353:     // Some of the operations can be deferred
>>> 354:     private boolean canDefer(Op op) {
>>> 355:         Boolean can = deferCache.get(op);
>> 
>> Use `computeIfAbsent`?
>
> Unfortunately `computeIfAbsent` throws `ConcurrentModificationException` in this case. This method is not usable when the computation causes more additions to the map.

Ah of course, its recursive.

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PR Review Comment: https://git.openjdk.org/babylon/pull/224#discussion_r1754877042