then:
        1 * created.run()
        1 * listener.something("12")
        0 * _
    }

    def "automatically registers stateful listener when first event is broadcast from child"() {
        def created = Mock(Runnable)
        def listener = Mock(TestListener)

        when:
        services.addProvider(new ServiceRegistrationProvider() {
            @Provides

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.process.internal.worker.child;

import org.gradle.api.Action;
import org.gradle.api.GradleException;
import org.gradle.api.JavaVersion;
import org.gradle.api.internal.ClassPathProvider;
import org.gradle.api.internal.classpath.ModuleRegistry;

	cmd := testenv.CleanCmdEnv(exec.Command(os.Args[0], "-test.run=^TestRuntimePanic$"))
	cmd.Env = append(cmd.Env, "GO_TEST_RUNTIME_PANIC=1")
	out, err := cmd.CombinedOutput()
	t.Logf("%s", out)
	if err == nil {
		t.Error("child process did not fail")
	} else if want := "runtime.unexportedPanicForTesting"; !bytes.Contains(out, []byte(want)) {
		t.Errorf("output did not contain expected string %q", want)
	}
}

 2477 ?        Sl     2:12 /opt/files/jdk-linux/jdk-8u161-linux-x64.tar.gz/bin/java -Djava.security.manager=worker.org.gradle.process.internal.worker.child.BootstrapSecurityManager -Dfile.encoding=UTF-8 -Duser.country=US -Duser.language=en -Duser.variant -cp /home/tcagent1/.gradle/caches/4.9-20180607113442+0000/workerMain/gradle-worker.jar worker.org.gradle.process.internal.worker.GradleWorkerMain 'Gradle...

        return this;
    }

    private void calculateFinalizedValue() {
        ImmutableList.Builder<FileCollectionInternal> builder = ImmutableList.builder();
        value.visitContents(child -> child.visitStructure(new FileCollectionStructureVisitor() {
            @Override
            public void visitCollection(Source source, Iterable<File> contents) {

	{5, "EIO", "input/output error"},
	{6, "ENXIO", "no such device or address"},
	{7, "E2BIG", "argument list too long"},
	{8, "ENOEXEC", "exec format error"},
	{9, "EBADF", "bad file descriptor"},
	{10, "ECHILD", "no child processes"},
	{11, "EAGAIN", "resource temporarily unavailable"},
	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.process.internal.worker.child;

import org.gradle.api.Action;
import org.gradle.initialization.GradleUserHomeDirProvider;
import org.gradle.internal.concurrent.CompositeStoppable;
import org.gradle.internal.concurrent.DefaultExecutorFactory;

        def realize = verifyTaskDetails(RealizeTaskBuildOperationType, withPath(':', ':foo'))
        realize.children.empty
        realize.details.eager == false
    }

    def "op during realize are child ops"() {
        given:
        register('foo')
        register('bar')
        buildFile << """
            tasks.named("foo").configure {
                tasks.named("bar").get()
            }
        """

	{5, "EIO", "input/output error"},
	{6, "ENXIO", "no such device or address"},
	{7, "E2BIG", "argument list too long"},
	{8, "ENOEXEC", "exec format error"},
	{9, "EBADF", "bad file descriptor"},
	{10, "ECHILD", "no child processes"},
	{11, "EAGAIN", "resource temporarily unavailable"},
	{12, "ENOMEM", "cannot allocate memory"},
	{13, "EACCES", "permission denied"},
	{14, "EFAULT", "bad address"},
	{15, "ENOTBLK", "block device required"},

        val children = tree.children(node)

        var name: String? = null
        val valueArguments = mutableListOf<LighterASTNode>()
        children.forEach { child ->
            fun process(node: LighterASTNode) {
                when (val tokenType = node.tokenType) {
                    REFERENCE_EXPRESSION -> {
                        name = node.asText
                    }