Practical extraction techniques for Java
ACM Transactions on Programming Languages and Systems (TOPLAS)
Extracting Java library subsets for deployment on embedded systems
Science of Computer Programming - Software maintenance and reengineering (CSMR 99)
Compact Java binaries for embedded systems
CASCON '99 Proceedings of the 1999 conference of the Centre for Advanced Studies on Collaborative research
Slim VM: optimistic partial program loading for connected embedded Java virtual machines
Proceedings of the 6th international symposium on Principles and practice of programming in Java
“Slimming” a Java virtual machine by way of cold code removal and optimistic partial program loading
Science of Computer Programming
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Embedded systems provide means for enhancing the functionality delivered by small-sized electronic devices such as hand-held computers and cellular phones. Java is a programming language which incorporates a number of features that are useful for developing such embedded systems. However, the size and the complexity of the Java language and its libraries have slowed its adoption for embedded systems, due to the processing power and storage space limitations found in these systems. A common approach to address storage space limitations is for the vendor to offer special versions of the libraries with reduced functionality and size to meet the constraints of embedded systems. This paper presents a technique that is used for dynamically selecting, on an as needed basis, the subset of library entities that is exactly required for a given Java application to run. This subset can then be down-loaded to the device for execution. The advantage of this approach is that the developer can use arbitrary libraries, instead of being restricted to those which have been adapted for embedded systems by the vendors. A prototype system, that dynamically builds library subsets on an as needed per application basis, has been built and tested on several mid-size Java applications with positive results.