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by pulse7
993 days ago
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In Smalltalk this was always possible! In Java the default JVM implementation is able to do "hot code swapping" only for method bodies. Smalltalk was able to replace everything - even class restructuring. There was a research project at Sun/Oracle [1] to add JVM support for all possible changes in "hot code swapping"... but the implementation was not incorporated into JVM because of increased maintenance complexity so the author made a JVM fork and named it DCEVM and is maintaining it [2]. I thing this project is also connected with HotSwapAgent [3]. There is also a completely different commercial implementation of the hot-swapping capability for Java called JRebel [4] which is used on many software development projects... [1] https://ssw.jku.at/dcevm/
[2] http://dcevm.github.io
[3] http://hotswapagent.org
[4] https://www.jrebel.com |
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