I’ve recently started trialling JRebel at work. JRebel is a piece of software that hot-swaps your code so that changes made in your IDE are reflected in your application server without requiring a restart.
The benefits of this idea are fairly obvious. I no longer have to wait 1 - 2 minutes for JBoss to restart each time I correct a spelling mistake etc. The time saved by not restarting probably make the product worth the $US149 licensing fee.
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