ThreadMXBean is specified to provide a monitoring or management interface for platform threads, it is specified to not support virtual threads.

At this time, ThreadMXBean::isCurrentThreadCpuTimeSupported returns true when invoked from a virtual thread, it should return false.

Additionally, when using the alternative implementation of virtual threads (-XX:-VMContinuations), there are a few issues:

- getThreadXXXTime returns cpu/user time for virtual threads, it should set the elements corresponding to virtual threads to 1L.

- getThreadAllocatedBytes returns the allocation by virtual threads, it should set the elements corresponding to virtual threads to 1L.