Today I faced small confusion how to configure my Eclipse to use JRebel with Grails 3 framework. This is step by step configuration.

1. Get ready with your eclipse on fedora 22 and gnome shell (I’m using sts-3.7.0.RELEASE);
2. Install Gradle IDE Plugin;
   
3. Install JRebel – it’s just a tool to autoreloading classes and spring beans ;-);
   
4. Install Groovy 2.4 support from GitHub, (eclipse 4.5 Mars);
   
5. Create your Grails 3 application

   grails create-app hello-world --profile=web
   cd hello-world
   grails
   grails> create-controller homePage

6. Import project into eclipse;
7. Edit gradle.build file (to add JRebel compatibility), documentation at GitHub:

   buildscript {
     repositories {
        ...
        mavenCentral()
     }
   
     dependencies {
        ...
        classpath group: 'org.zeroturnaround', name: 'gradle-jrebel-plugin', version: '1.1.2'
     }
   }
   ...
   apply plugin: 'rebel'
   ...
   build.dependsOn(generateRebel)
   

8. Run “gradle generateRebel” -> generate rebel.xml file
   1. In eclipse, Window -> Show view -> Other -> Select Gradle -> Gradle Tasks
      
   2. The file is generated under this location: build/classes/main/rebel.xml

During the next few days I will publish how to run Grails 3 with JRebel:

1. From command line without JRebel
2. From command line with JRebel
3. From eclipse as a Spring Boot Application without JRebel
4. From eclipse as a Spring Boot Application with JRebel