Abstract
Transactions are a high-level alternative for low-level concurrency-control mechanisms such as locks, semaphores, monitors. A recent proposal for integrating transactional features into programming languages is Transactional Featherweight Java (TFJ), extending Featherweight Java by adding transactions. With support for nested and multi-threaded transactions, its transactional model is rather expressive. In particular, the constructs governing transactions —to start and to commit a transaction— can be used freely with a non-lexical scope. On the downside, this flexibility also allows for an incorrect use of these constructs, e.g., trying to perform a commit outside any transaction. To catch those kinds of errors, we introduce a static type and effect system for the safe use of transactions for TFJ. We prove the soundness of our type system by subject reduction.
The work has been partly supported by the EU-project FP7-231620 HATS (Highly Adaptable and Trustworthy Software using Formal Methods).
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Thuong Tran, T.M., Steffen, M. (2010). Safe Commits for Transactional Featherweight Java. In: MĂ©ry, D., Merz, S. (eds) Integrated Formal Methods. IFM 2010. Lecture Notes in Computer Science, vol 6396. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16265-7_21
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DOI: https://doi.org/10.1007/978-3-642-16265-7_21
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