JMH throughput sweep (1-64 threads), 9:1 read-heavy @Group benchmark, tryLock(timeout) deadlock-avoidance demo, and a JDK21-vs-JDK25 JEP 491 virtual-thread-pinning comparison. Also promotes LICENSE to repo root now that a second module exists.
Runnable jcstress + JUnit companion for the ankurm.com post on the Java Memory Model, double-checked locking, and the volatile fix.
asmhatre