How to make a Jar file with dependencies by Gradle 7.0+?

Question

My current jar in build.gradle is like below:

jar {
manifest {
    attributes "Main-Class": "hoge.Main"
}
    from configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
}

and working well.

However, I have a message from Gradle (maybe since 6+?)

This is the actual message:

The compile configuration has been deprecated for dependency declaration. This will fail with an error in Gradle 7.0. Please use the implementation configuration instead.

The part configurations.compile is deprecated.

How can I update it?

If I changed

jar {
manifest {
    attributes "Main-Class": "hoge.Main"
}
    from configurations.implementation.collect { it.isDirectory() ? it : zipTree(it) }
}

Gradle says > Resolving configuration 'implementation' directly is not allowed

Answer 1

For others wanting to upgrade their Gradle configuration to the 7.0+ format, note that simply replacing compile with implementation or api will likely bug out if you use the java plugin. You need to be using the java-library plugin. Documentation.

Make sure that in your gradle.config you replace:

apply plugin: 'java'

with:

apply plugin: 'java-library'

You use implementation for non-transitive dependencies, and api for transitive ones (if the dependencies are consumed directly by dependents of your project).