NDLI: Encapsulating objects with confined types

Content Provider	ACM Digital Library
Author	Palsberg, Jens Grothoff, Christian Vitek, Jan
Abstract	Object-oriented languages provide little support for encapsulating objects. Reference semantics allows objects to escape their defining scope. The pervasive aliasing that ensues remains a major source of software defects. This paper introduces Kacheck/J a tool for inferring object encapulation properties in large Java programs. Our goal is to develop practical tools to assist software engineers, thus we focus on simple and scalable techniques. Kacheck/J is able to infer confinement for Java classes. A class and its sublasses are confined if all of their instances are encapsulated in their defining package. This simple property can be used to identify accidental leaks of sensitive objects. The analysis is scalable and efficient; Kacheck/J is able t infer confinement on a corpus of 46,000 classes (115 MB) in 6 minutes.
Starting Page	241
Ending Page	255
Page Count	15
File Format	PDF
ISBN	1581133359
DOI	10.1145/504282.504300
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2001-10-01
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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Encapsulating objects with confined types