Deterministic execution of java's primitive bytecode operations

Authors:
Fridtjof Siebert;Andy Walter
Affiliations:
IPD, Universität Karlsruhe, Karlsruhe, Germany;Forschungszentrum Informatik (FZI), Karlsruhe, Germany
Venue:
JVM'01 Proceedings of the 2001 Symposium on JavaTM Virtual Machine Research and Technology Symposium - Volume 1
Year:
2001

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Abstract

For the application of Java in realtime and safety critical domains, an analysis of the worst-case execution times of primitive Java operations is necessary. All primitive operations must either execute in constant time or have a reasonable upper bound for their execution time. The difficulties that arise for a Java virtual machine and a Java compiler in this context will be presented here. This includes the implementation of Java's class and interface model, class initialization, monitors and automatic memory management. A new Java virtual machine and compiler that solves these difficulties has been implemented and its performance has been analysed.