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International Conference on Software Technologies

ICSOFT 2013: Software Technologies pp 99–113Cite as

State of the Art of Dynamic Software Updating in Java

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Part of the book series: Communications in Computer and Information Science ((CCIS,volume 457))

Abstract

The dynamic software updating system JRebel from Zeroturnaround has proven to be an efficient mean to improve developer productivity, as it allows developers to change the code of their applications while developing and testing them. Hence, developers no longer have to go through the tedious cycle of serializing application state, halting execution, redeploy the binary, restarting, and de-serializing state before they can test the effect of a code change. However, the current version of JRebel has its limits, as it does not support all kinds of code changes. In this paper, we compare the three most comprehensive dynamic updating systems developed for Java to date. Together, these systems provide comprehensive support for changing class definitions of live objects, including adding, removing and moving fields, methods, classes and interfaces anywhere in the inheritance hierarchy. We then investigate the effects of dynamic updating by performing a dynamic updating experiment on five consecutive revisions of the classical arcade game Breakout using the dynamic updating system Gosh! (Prior to the acquisition by zeroturnaround.com known as Javeleon.). Based on the result of this experiment we show that dynamic updating of class definitions for live objects may under some circumstances result in different run-time behavior than would be observed after a cold restart of the upgraded application. Finally, we conclude by discussing the implication of integrating the dynamic updating model of Gosh! with JRebel. The successful integration of these two systems will set a new standard for dynamic software updating in Java.

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Author information

Authors and Affiliations

  1. ZeroTurnaround, Tartu, Estonia

    Allan Raundahl Gregersen & Michael Rasmussen

  2. The Maersk Mc-Kinney Moller Institute, University of Southern Denmark, Odense, Denmark

    Bo Nørregaard Jørgensen

Authors
  1. Allan Raundahl Gregersen
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  2. Michael Rasmussen
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  3. Bo Nørregaard Jørgensen
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Corresponding author

Correspondence to Bo Nørregaard Jørgensen .

Editor information

Editors and Affiliations

  1. Polytechnic Institute of Setúbal, Setúbal, Portugal

    José Cordeiro

  2. Centre for Telematics and Information Te, University of Twente, Enschede, The Netherlands

    Marten van Sinderen

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© 2014 Springer-Verlag Berlin Heidelberg

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Gregersen, A.R., Rasmussen, M., Jørgensen, B.N. (2014). State of the Art of Dynamic Software Updating in Java. In: Cordeiro, J., van Sinderen, M. (eds) Software Technologies. ICSOFT 2013. Communications in Computer and Information Science, vol 457. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44920-2_7

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  • DOI: https://doi.org/10.1007/978-3-662-44920-2_7

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-662-44919-6

  • Online ISBN: 978-3-662-44920-2

  • eBook Packages: Computer ScienceComputer Science (R0)

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