When a project declares a dependency both with and without a classifier, gradle should return the default artifacts for the dependency as well as the classifier-defined artifacts.
This works correctly with mavenRepo repositories, but does not work with flatdir repositories.

For example with the declaration:

repositories {
    flatdir dirs: "$projectDir/repo"
}
dependencies {
    compile 'org.myorg:Testproject1:0.1'
    compile 'org.myorg:Testproject1:0.1:tests'
}

configurations.compile will only return 1 artifact: Testproject1-0.1-tests.jar