Optimize Java Code

Make a measured Java hot path or JVM configuration cheaper without changing observable behavior. Each change applies one reference card to a cost that JFR, JMH, or a GC/JIT log attributes, is checked by an equivalence oracle, and is kept only if the metric the card names improves. Several cards report no measurable difference because C2 already optimizes the baseline, so read the card before applying a construct.

Workflow