Using same directories for java and resources yields duplicate files in source jar

[andreas-schilling]

I'm using the sourceJar task to build a -sources bundle for a project.
It's an OSGi bundle and due to the project layout, the source set is defined as follows:

sourceSets {
    main {
        java {
            srcDirs = ['src']
        }
        resources {
            srcDirs = ['src']
        }
    }
}

This is quite common actually. Using the sourceJar task then yields all files to be duplicated inside the resulting jar.
This can easily be fixed by doing this:

sourceJar {
    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
}

I'm just wondering whether it would make sense to include this option in the task definition already?