JRebel is a tool from ZeroTurnaround that hotswaps compiled java classes on the fily while your application is running. This will greatly reduce the number of times your must restart your app as your make changes during development and thus save you time and productivity interruptions that makes it possible for Java developers to instantly see any code change made to an app without redeploying. JRebel lets you see code changes instantly, versioning classes and resources individually and updating one at a time instead of as a lump application redeploy.
How to install and use JRebel
- Get a free 30-day license, aopen source developer license (Get JRebel for free section) or a paid license from ZeroTurnaround
- Put the license file (jrebel.lic) into a directory named .jrebel in your home directory. ( ~/.jrebel/jrebel.lic )
- Get the JRebel plugin. Go to Eclipse->Preferences->Available Software Sites, add http://www.zeroturnaround.com/update-site/