def nullModel = withConnection { it.action(new NullAction()).run() }

        then:
        nullModel == null
    }

    def "action classes are reused in daemon"() {
        toolingApi.requireIsolatedDaemons()

        expect:
        def result1 = withConnection { it.action(new CounterAction()).run() }
        def result2 = withConnection { it.action(new CounterAction()).run() }

    }

    def "does not fail when executing #flag in undefined build"() {
        when:
        executer.requireDaemon().requireIsolatedDaemons()
        succeeds(flag)

        then:
        testDirectory.assertIsEmptyDir()

        where:
        flag << ["--version", "--help", "-h", "-?", "--help"]
    }

        }
    }
}
        """

                GradleExecuter executer = distribution.executer(workspace, IntegrationTestBuildContext.INSTANCE).
                        requireDaemon().requireIsolatedDaemons().
                        withGradleUserHomeDir(workspace.file("user-home"))
                8.times {
                    executer.inDirectory(buildDir).withArgument("--refresh-dependencies").withTasks('check').run()

        def lastCleanupCheck = initializeHome()

        expect:
        run()
        assertCacheWasNotCleanedUpSince(lastCleanupCheck)
    }

    private long initializeHome() {
        executer.requireIsolatedDaemons() // needs to stop daemon
        requireOwnGradleUserHomeDir() // needs its own journal
        run() // Make sure cache directory is initialized

    }

    def "always cleans up unused version-specific cache directories and corresponding #type distributions when configured"() {
        given:
        executer.requireIsolatedDaemons() // because we want to reuse Gradle user home services
        executer.beforeExecute {
            if (!GradleContextualExecuter.embedded) {
                executer.withArgument("-D$REUSE_USER_HOME_SERVICES=true")

    def setup() {
        expectReindentedValidationMessage()

        // Must run on isolated daemons so that symlink data can be properly cleaned up between builds
        executer.requireDaemon()
        executer.requireIsolatedDaemons()

        buildFile << """
// This is a workaround to bust the JVM's file canonicalization cache
def f = file("delete-me")
f.createNewFile()
f.delete() // invalidates cache

task work {

        }

        when:
        executer.withGradleUserHomeDir(homeDirectory)
        executer.requireDaemon()
        executer.requireIsolatedDaemons()
        run 'help'

        then:
        getCompileBuildFileOperationsCount() == 4 // classpath + body for settings and for the 2 identical scripts

        when:
        def before = scriptDetails()

        given:
        def projectDir1 = file("project1")
        def projectDir2 = file("project2")
        setupProjectInDir(projectDir1)
        setupProjectInDir(projectDir2)
        executer.requireIsolatedDaemons()
        executer.beforeExecute {
            if (!GradleContextualExecuter.embedded) {
                executer.withArgument("-D$REUSE_USER_HOME_SERVICES=true")
            }
        }

        when:

        usesKotlin(file(otherDir))
        // This is because the Kotlin compiler is run in-process (to avoid issues with the Kotlin compiler daemon) and also keeps jars open
        executer.requireDaemon().requireIsolatedDaemons()
        otherDir.file("build.gradle.kts") << """
            dependencies {
                implementation(project(":plugin"))
            }
        """

    }

    def "daemon with different native services flag is not reused"() {
        given:
        executer.requireDaemon()
        executer.requireIsolatedDaemons()

        when:
        executer.withArguments("-D$NATIVE_SERVICES_OPTION=$firstRunNativeServicesOption")
        succeeds()

        then:
        daemons.daemon.becomesIdle()

        when: