Concurrent Object-Oriented Programs: From Specification to Code

In this paper we put forward a concurrent object-oriented programming language in which concurrency is tightly integrated with objects. Concurrency is expressed by extending classes with actions and allowing methods to be guarded. Concurrency in an object may be hidden to the outside, thus allowing concurrency to be introduced in subclasses of a class hierarchy. A disciplined form of intra-object concurrency is supported. The language is …