SWT and JFace with Gradle and Kotlin

build.gradle

group 'example'
version '1.0-SNAPSHOT'

buildscript {
    ext {
        kotlin_version = '1.1.2-2'
        osgi_platform = 'win32.win32.x86_64'
        swt_version = '3.105.3'
    }

    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

apply plugin: 'java'
apply plugin: 'kotlin'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

configurations.all {
    resolutionStrategy {
        dependencySubstitution {
            // The maven property ${osgi.platform} is not handled by Gradle
            // so we replace the dependency, using the osgi platform from the project settings
            substitute module('org.eclipse.platform:org.eclipse.swt.${osgi.platform}') with module("org.eclipse.platform:org.eclipse.swt.$osgi_platform:$swt_version")
        }
    }
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
    compile "org.eclipse.platform:org.eclipse.jface:3.12.2"
    compile "org.eclipse.platform:org.eclipse.swt:$swt_version"
}

There is a much simple alternative to get SWT working:

dependencies {
    compile("org.eclipse.platform:org.eclipse.swt.win32.win32.x86_64:3.106.3) {
        transitive = false
    }
}

for me it's not working while the first version working

This appears to be the only sane way to also add java 9 moodules, depending directly on specific platorm doesn't really work with java module system.