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2008 Technical Reports

JSCOOP: A High-Level Concurrency Framework for Java

Faraz Ahmadi Torshizi, Jonathan S. Ostroff, Richard F. Paige, Kevin J. Doyle and Jenna Lau

Technical Report CSE-2008-09

York University

December 22, 2008


SCOOP is a minimal extension to the sequential object-oriented programming model for concurrency. The extension consists of one keyword (separate) that avoids explicit thread declarations, synchronized blocks, explicit waits, and eliminates data races and atomicity violations by construction through a set of compiler rules. It attempts to guarantee fairness via use of a global scheduler. We present a new implementation of SCOOP for Java, called JSCOOP. JSCOOP introduces a new set of annotations modeled after SCOOP keywords, as well as several core library classes which provide the support necessary to implement the SCOOP semantics. A prototype Eclipse plug-in allows for the creation of JSCOOP projects. The plug-in does syntax checking and detects consistency problems at compile time. The use of JSCOOP is demonstrated by an example.

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