You can manually add the JRebel update site by navigating to Help > Install New Software and entering the URL: https://update.zeroturnaround.com/update-site/ .
For environments without stable internet, a ZIP archive is available. Download the archive, then in Eclipse, go to Help > Install New Software > Add > Archive and select the downloaded file. Core Features and Benefits jrebel eclipse download
The easiest method is to go to Help > Eclipse Marketplace within your IDE, search for "JRebel" , and click Install . You can manually add the JRebel update site
There are three primary ways to download and install JRebel for Eclipse: then in Eclipse
JRebel for Eclipse - Eclipse Marketplace - Eclipse Foundation