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Understanding Capture Checking in Scala
Adam Warski, 04 Dec 2025.
Capture checking is an upcoming Scala feature that allows you to track which designated values (capabilities) are captured (i.e., stored as references) by arbitrary other values. This tracking happens at compile time and is currently an opt-in mechanism that can be enabled via an import.
Introduction to JVM Method Profiling
Michał Zyga, 02 Dec 2025.
The size of the method compiled by the JIT compiler depends on the amount of profiling data included. But what does that actually mean? In this article, I will answer that question and also explain how the profiling mechanism works in general.