A new, JDK-specific monitoring and management interface, `jdk.management.VirtualThreadSchedulerMXBean`, has been added to allow Java Management Extension (JMX) based tooling to monitor and manage the virtual thread scheduler. The interface supports monitoring the virtual thread scheduler's target parallelism, the threads used by the scheduler, and the number of virtual threads queued to the scheduler. It also supports dynamically changing the scheduler's target parallelism.