Be more productive, happier, save money. Be JRebel.
We use JRebel in the software development group to minimize the time spent between the redeployments of the Java applications during …
Overview
What is JRebel?
JRebel is a build automation tool developed by Estonian company ZeroTurnaround, acquired by Rogue Wave Software in 2017, and then acquired (and now supported by) Perforce since that company's 2019 acquisition of Rogue Wave. The vendor says users of JRebel…
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What is JRebel?
JRebel is a build automation tool developed by Estonian company ZeroTurnaround, acquired by Rogue Wave Software in 2017, and then acquired (and now supported by) Perforce since that company's 2019 acquisition of Rogue Wave. The vendor says users of JRebel saves Java teams a month of coding time per…
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February 01, 2019
Be more productive, happier, save money. Be JRebel.
We use JRebel in the software development group to minimize the time spent between the redeployments of the Java applications during development. Without JRebel, every change you do in the source code that requires re-compilation will need a redeployment of the entire app, which can take from 30 seconds to several minutes. When you do this only to test something or to visualize a small change in the user interface, the time needed for redeployment it is simply wasted time. JRebel removes the need to redeploy which improves development speed, reduces people's frustration, enhances the productivity and saves the company money.
- Removes the time needed for redeployments of the source code - improves productivity, time to market, and saves money.
- Easy to install
- License renewals - the sales department reaches out to you long before the licenses expire so you can have time to get your approvals.
- Analytics and reporting - it will show you the time saved by JRebel and even the ROI, if you input the average hourly cost of a developer.
- In multi-project environments, the dependencies are not always reloaded.
- License management - we use a license server with a combination of dedicated licenses and floating. I had some struggle managing these due to the License Server User Interface not being very intuitive.
- In the first year JRebel saved us $28k by removing the wasted development time for a team of 7 developers with 4 re-deployments per hour.
- JRebel paid for itself in less than a month in the first year.
- In the second year JRebel saved us $20k by removing the wasted development time for a team of 5 developers with 4 re-deployments per hour.
- JRebel paid for itself in less than a month in the second year.
August 22, 2017
More consistent short development cycles than Instant Run...a must when doing backend code
It's being used by a few of our Android developers. It allows them to minimize compile/deployment time of Android apps during the development process. Android Studio has support for something called "Instant Run" but it tends to do full compiles quite a bit more often then JRebel does, so using JRebel minimizes our debug deployment time.
- Deploys all layout changes consistently (when Instant Run was initially available, you couldn't tell if the change you made to a layout was actually being tested or not).
- Doesn't require a full build as often as Instant Run when changing code.
- Works with compile time annotation libraries like Realm, etc.
- Launch times are where JRebel is slower than Instant Run.
- Sometimes, it has incompatibilities with how you wrote something and causes compile failures, but Zero turnaround is quick to respond.
- It has sped up development time for users that used it
- Andriod Studio
Hot code swapping doesn't have many players...it's mainly JRebel. We use JRebel a lot in our backend code development where it minimizes our development cycle (20min down to 30sec). For Android, the competitor is Android Studio's Instant Run which works fairly well now. For smaller apps, Instant Run is faster deploying but needs more full builds. With JRebel, you hardly ever need to do a full build.
June 10, 2016
Fastest redeploy ever
I used JRebel to redeploy our web application on the fly. It was used in a specific project. We had problems redeploying the application because it was very huge and it took a lot of time. With Jrebel we were able to make it in a very fast way, saving many many hours.
- Fast redeploy
- It worked great, no big cons
- It sped up the developing time, and time is money for the company.