The interfaces do not define the particular semantics of any known monitor type (Hoare, Brinch-Hansen, Modula-3, Java etc) rather they define generic functionality for monitors and condition queues.
The interfaces are not intended for direct implementation by a concrete class, but rather serve as mix-ins to be combined into an interface that defines a monitor or condition queue with particular semantics. For example, {@link ovm.services.java.JavaMonitor} combines all the attributes of timed and interruptable condition queue methods, together with the semantics specific to Java (such as requiring monitor ownership before doing a condition signal).
To avoid confusion with any particular semantics we have chosen a general nomenclature. @see ovm.services.java.JavaMonitor