JRebel

JRebel

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Score 8.0 out of 100
JRebel

Overview

Recent Reviews

Fastest redeploy ever

8 out of 10
June 10, 2016
I used JRebel to redeploy our web application on the fly. It was used in a specific project. We had problems redeploying the application …
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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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  • No setup fee

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  • Free/Freemium Version
  • Premium Consulting / Integration Services

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Product Details

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 year on average.

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JRebel Technical Details

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Reviews and Ratings

 (10)

Ratings

Reviews

(1-3 of 3)
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Cristian Bodnarasec | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Review Source
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.
I recommend JRebel for Java developers, it will remove the time needed for redeployment, it will increase the focus on the task at hand (without being distracted by the redeployment) and will make them happier.

I recommend JRebel for Java Development Managers, they should purchase this for their teams - it will increase productivity, decrease the product's time to market, and it will save money for the company. The ROI can be calculated upfront and presented to higher level management for approving this, if needed.
Ken Yee | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Review Source
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.
Minimizes debug/deployment cycles when you're making a lot of changes to your Android code.
If your app is small, Android Studio's Instant Run is faster.
Score 8 out of 10
Vetted Review
Verified User
Review Source
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 is a great software which works well in all areas in which you need to redeploy the application very often for some reason. You might have been developing the application and for some reason it's hard to test automatically, so you need to see the result of your code quickly.