You can also use `-Dorg.gradle.internal.invalidate-coupled-projects=false` to force parallel configuration when there are access problems.

Please be aware that these options disable the validation that makes execution parallel- and caching-safe when isolated projects is enabled,
so you may see some unexpected behaviour when using them.

== Build logic constraints

import org.junit.Rule

@Requires(IntegTestPreconditions.NotParallelExecutor)
// no point, always runs in parallel
class ParallelDependencyResolutionIntegrationTest extends AbstractHttpDependencyResolutionTest {
    @Rule BlockingHttpServer blockingServer = new BlockingHttpServer()

    def setup() {
        executer.withArgument('--parallel')

	newLevels().
		// Level 1: bf=20(parallel)
		Add(20, true).
		// Level 2: bf=5(parallel)
		Add(5, true).
		// Level 3: bf=2(parallel)
		Add(2, true).
		Build().
		Run(t)
}

func TestMix(t *testing.T) {
	// Root is always run sync.
	newLevels().
		// Level 1: bf=20(parallel)
		Add(20, true).
		// Level 2: bf=5(sync)
		Add(5, false).
		// Level 3: bf=2(parallel)
		Add(2, true).
		Build().
		Run(t)

@Requires(IntegTestPreconditions.NotParallelExecutor)
class EnablingParallelExecutionIntegrationTest extends AbstractIntegrationSpec {

    def "parallel mode enabled via gradle.properties"() {
        file("gradle.properties") << "org.gradle.parallel=true"
        buildFile << "assert gradle.startParameter.parallelProjectExecutionEnabled"
        expect:
        run()
    }

	}
	if err := lockedfile.Write(path, bytes.NewReader(buf[:8]), 0666); err != nil {
		t.Fatal(err)
	}

	var attempts int64 = 128
	if !testing.Short() {
		attempts *= 16
	}
	const parallel = 32

	var sem = make(chan bool, parallel)

	for n := attempts; n > 0; n-- {
		sem <- true
		go func() {
			defer func() { <-sem }()

			time.Sleep(time.Duration(rand.Intn(100)) * time.Microsecond)

	_, err := fmt.Fprint(pipe, args[1])
	if err != nil {
		fmt.Fprintf(os.Stderr, "writing to pipe failed: %v\n", err)
		os.Exit(1)
	}
	pipe.Close()
}

func TestPipePassing(t *testing.T) {
	t.Parallel()

	r, w, err := os.Pipe()
	if err != nil {
		t.Error(err)
	}
	const marker = "arrakis, dune, desert planet"
	childProc := helperCommand(t, "pipehandle", strconv.FormatUint(uint64(w.Fd()), 16), marker)

    }

    def "can enable parallel execution via --parallel property"() {
        given:
        buildScript """
            task writeValue {
                doLast {
                    file("out.txt").text = gradle.startParameter.parallelProjectExecutionEnabled
                }
            }
        """

        when:
        runner("writeValue", "--parallel")

                        ${server.callFromBuild("parallel-task-done")}
                    }
                }
            """
        }
        def numWorkers = (parallelTaskCount / 2) + 2 as int

        when:
        server.expectConcurrent(numWorkers, ["parallel-task-done"] * parallelTaskCount + ["before-interrupt"] as String[])

		"issue20272.go",
		"issue27013.go",
		"issue30202.go",
	}

	testenv.MustHaveGoBuild(t)
	iters := 10
	if testing.Short() {
		iters = 4
	}
	t.Parallel()
	for _, test := range tests {
		test := test
		t.Run(test, func(t *testing.T) {
			t.Parallel()
			var want []byte
			tmp, err := os.CreateTemp("", "")
			if err != nil {
				t.Fatalf("temp file creation failed: %v", err)
			}
			defer os.Remove(tmp.Name())

    }

    @ToBeFixedForConfigurationCache
    def "can execute assembler tasks in parallel"() {
        given:
        withComponentForApp()
        createTaskThatRunsInParallelUsingCustomToolchainWith("assembleMainExecutableMainAsm")
        buildFile << """
            // prevent assembly and c compile tasks from running in parallel
            // this is because we don't want the c compile tasks to accidentally use