* }
 * ```
 * If you need to apply a plugin imperatively, please use apply<PluginType>() or apply(plugin = "id") instead.
 * ```
 * project(":core") {
 *   apply(plugin = "java")
 * }
 * ```
 * @since 6.0
 */
@Suppress("unused", "DeprecatedCallableAddReplaceWith")
@Deprecated(

        """)
        settingsFile << """
            include("a")
            include("b")
            rootProject.name = "root"
        """
        apply(testDirectory)
        apply(file("a"))
        apply(file("b"))

        // Prebuild buildSrc
        server.expect("configure-root")
        server.expect("configure-a")
        server.expect("configure-b")
        run()

        def includedBuild = singleProjectBuild("includedBuild") {
            buildFile << """
                apply plugin: 'java'
            """
        }
        def consumer = singleProjectBuild("consumer") {
            buildFile << """
                apply plugin: 'java'

                dependencies {
                    implementation "org.test:includedBuild:1.0"
                }

        setup:
        multiProjectBuildInRootFolder("root", ["child1", "child2"]) {
            buildFile << """
            subprojects {
                apply plugin: 'java-library'
            }
            project(":child2") {
                apply plugin: 'eclipse'
                configurations {
                    toRemove
                }
                eclipse {
                    classpath {

        settingsFile << """
            ${applyToolchainResolverPlugin("CustomToolchainResolver", customToolchainResolverCode())}
        """

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

            java {
                toolchain {
                    languageVersion = JavaLanguageVersion.of(99)
                    vendor = JvmVendorSpec.matching("exotic")
                }

        file('a/build.gradle') << '''
            apply plugin: 'base'
            configurations { compile }
            dependencies { compile project(path: ':b', configuration: 'compile') }
            task aJar(type: Jar) { }
            gradle.taskGraph.whenReady { project.version = 'late' }
            artifacts { compile aJar }
'''
        file('b/build.gradle') << '''
            apply plugin: 'base'
            version = 'early'

The `Project` object is passed as a parameter in `apply()`, which the plugin can use to configure the project however it needs to (such as adding tasks, configuring dependencies, etc.).
In this example, the plugin is written directly in the build file which is *not a recommended practice*.

When the plugin is written in a separate script file, it can be applied using `apply(from = "file_name.gradle.kts")` or `apply from: 'file_name.gradle'`.

                }
            """
        }
    }

    def 'can aggregate unit test results from dependent projects'() {
        given:
        file('application/build.gradle') << '''
            apply plugin: 'org.gradle.test-report-aggregation'
        '''

        when:
        succeeds(':application:testAggregateTestReport')

        then:
        result.assertTaskExecuted(":application:test")

            ignoringUnexpectedInputs()
        }
        outputContains("apply = $value")
        outputContains("task = $value")

        when:
        configurationCacheRunLenient "thing", "-DCI=$value"

        then:
        configurationCache.assertStateLoaded()
        problems.assertResultHasProblems(result)
        outputDoesNotContain("apply =")
        outputContains("task = $value")

        when:

    socketFactory[ipv6] = server1.inetSocketAddress
    socketFactory[ipv4] = server2.inetSocketAddress

    client =
      client.newBuilder()
        .fastFallback(false)
        .apply {
          retryOnConnectionFailure = false
        }
        .build()

    executeSynchronously(request)
      .assertFailureMatches("stream was reset: REFUSED_STREAM")