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I could load jars on the fly in Java.
I could load jars on the fly in Java.
This has been possible in Grails and Play for many years.
You can make a code change and refresh the browser and your changes are reflected.
TIL that that is possible. Just googled it apparently requires custom class-loader. Thanks for this.
Or you can simply use OSGi.
Check out JRebel [1] which works with a plugin to your favorite IDE if you want to make it really easy.
[1] http://zeroturnaround.com/software/jrebel/ http://zeroturnaround.com/software/jrebel/