rootProject.name = "sourcesets"...

        buildFile << """
            apply plugin: "java"

            task runInWorker(type: WorkerTask) {
                isolationMode = $isolationMode
                def classpath = sourceSets.main.output.classesDirs
                def projectDir = project.projectDir
                def testFile = project.file("\$buildDir/\$name")
                additionalParameters = {

}

version = '1.0'

def buildInfo = tasks.register("buildInfo", BuildInfo) {
    version = project.version
    outputFile = layout.buildDirectory.file('generated-resources/build-info.properties')
}

sourceSets {
    main {
        output.dir(buildInfo.map { it.outputFile.asFile.get().parentFile })
    }

apply plugin: 'java-base'

sourceSets {
    custom

plugins {
    java
}

repositories {
    mavenCentral()
}

dependencies {
    testImplementation("junit:junit:4.13")
}

// tag::define-main[]
sourceSets {
    main {
        java {
            setSrcDirs(listOf("src/java"))
        }
        resources {
            setSrcDirs(listOf("src/resources"))
        }
    }
// end::define-main[]
    test {
        java {
            srcDir("test/java")

plugins {
    groovy
}

dependencies {
    implementation(localGroovy())
}

tasks {
    register<JavaExec>("runScript") {
        mainClass = "scope"
        classpath = sourceSets.main.get().runtimeClasspath
        if (JavaVersion.current().isCompatibleWith(JavaVersion.VERSION_1_9)) {
            jvmArgs = listOf("--add-opens", "java.base/java.lang=ALL-UNNAMED")
        }
    }

                </tr>
            </thead>
            <tr>
                <td>testClassesDirs</td>
                <td><literal>project.sourceSets.test.output.classesDirs</literal></td>
            </tr>
            <tr>
                <td>classpath</td>
                <td><literal>project.sourceSets.test.runtimeClasspath</literal></td>
            </tr>
            <tr>
                <td>workingDir</td>

        because("Required by KotlinSourceParser")
    }
    implementation(kotlin("gradle-plugin") as String) {
        because("For manually defined KotlinSourceSet accessor - sourceSets.main.get().kotlin")
    }

    testImplementation("org.junit.jupiter:junit-jupiter-engine:5.8.2")

version = '1.0'

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.scala-lang:scala-library:2.13.12'
    testImplementation 'junit:junit:4.13'
}

// tag::custom-source-locations[]
sourceSets {
    main {
        scala {
            srcDirs = ['src/scala']
        }
    }
    test {
        scala {
            srcDirs = ['test/scala']
        }
    }
}

plugins {
    id 'java-library'
}

// tag::create-configurations[]
configurations {
    myCodeCompileClasspath
}

sourceSets {
    myCode
}