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1. VirtualThread always report their priority as NORM_PRIORITY. The priority is not inherited and cannot be changed with the setPriority method.
2. Virtual threads are daemon threads. Their daemon status cannot be changed with the setDaemon method.
3. Virtual threads cannot be suspended, resumed or stopped with the Thread suspend, resume and stop APIs.
4. Virtual threads have no permissions when running with a security manager.
5. Virtual threads are not active threads in their a thread group. The getThreadGroup method returns a ThreadGroup that cannot be destroyed and its All virtual threads are in the same ThreadGroup. The ThreadGroup enumerate methods do not enumerate the virtual threads in the group.