[Gradle]: Change sourceSets Directories

build.gradle

apply plugin: 'java'
apply plugin: 'eclipse'

sourceSets {
    main {
        java { srcDir 'src' }
        resources { srcDir 'src' }
    }
}

task listSrcDir <<{
    sourceSets.main{
        it.java.srcDirs.each { println it}
        it.resources.srcDirs.each {println it }
    }
}