This static class provided utilties for generation and manipulation
of DFC style Globally Unique Identifiers,
using the original HP/OSF UUID reference implemenation as a basis.
Since the Java runtime does not allow access to the full IEEE 802
48-bit ethernet address of a host (if indeed there is one)
this implementation attempts to use the 32-bit IP number
in the first instance, and defaults to the sample
pseudo-unique algorithm if the IP address is not available.
A native method-based extension will be provided in due course
to provide true GUID values.