JCoBox: generalizing active objects to concurrent components
ECOOP'10 Proceedings of the 24th European conference on Object-oriented programming
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We characterize the observable behavior of multi-threaded, object-oriented components with re-entrant monitors. We show that a compositional approach leads to observable uncertainty wrt. monitor operations at the interface which we capture by may- and must-approximations for potential, resp. necessary lock ownership. The concepts are formalized in an object calculus. We show the soundness of the abstractions.