Gradle only adds classes jar, not adding sources jar to dependencies

Help/Discuss
1

Gradle only adds classes jar, not adding sources jar to dependencies.

There is ServerCore-sources.jar in the maven local folder of ServerCore, that I’m gonna add to dependency.
And I used compileOnly(“kr.sul:ServerCore:1.0-SNAPSHOT”) for this work, in build.gradle.kts.
Imgur
Imgur 

publishing {
    java {
        withSourcesJar()
        withJavadocJar()
    }
    publications {
        create<MavenPublication>("maven") {
            groupId = rootProject.group as String
            version = rootProject.version as String
            from(components["java"])
        }
    }
}
2

If your issue is that IntelliJ is not downloading the sources JAR, that is not something that Gradle does. You have to configure that in IntelliJ. You will not see a dependency for a sources JAR in the External Libraries for IntelliJ.

3

When I do the install task with maven(install JAR to local .m2), Intellij downloads the sources Jar automatically.
But when I do the same task with Gradle, Intellij doesn’t download the sources Jar.

Imgur
Look at this Parachute.jar what is installed in .m2 with maven.

4

There is a setting in IntelliJ to tell maven to download sources. My guess is that you have this enabled.

Here is something that might help:

It looks like with the Idea Gradle plugin, you can configure IntelliJ to download sources via the Gradle build file.