Did you know ... Search Documentation:
Predicate jpl_class_to_entityname/2
 jpl_class_to_entityname(+Class:jref, -EntityName:atom)[private]
The Class is a reference to a class object. The EntityName is the string as returned by Class.getName().

This predicate actually calls Class.getName() on the class corresponding to Class.

See also
- https://docs.oracle.com/en/java/javase/14/docs/api/java.base/java/lang/Class.html#getName()