// write anything else to stdout, but it's not a big deal if it does anyway.
		// Keep the stdout pipe open so that 'hg serve' won't get a SIGPIPE, but
		// actively discard its output so that it won't hang on a blocking write.
		wg.Add(1)
		go func() {
			io.Copy(io.Discard, r)
			wg.Done()
		}()

		u, err := url.Parse(strings.TrimSpace(line))
		if err != nil {
			logger.Printf("%v: %v", cmd, err)

			return n, err
		}
	}
	return
}

// Discard is a [Writer] on which all Write calls succeed
// without doing anything.
var Discard Writer = discard{}

type discard struct{}

// discard implements ReaderFrom as an optimization so Copy to
// io.Discard can avoid doing unnecessary work.
var _ ReaderFrom = discard{}

func (discard) Write(p []byte) (int, error) {
	return len(p), nil
}

func (f *flagVar) Set(value string) error {
	*f = append(*f, value)
	return nil
}

func TestUserDefined(t *testing.T) {
	var flags FlagSet
	flags.Init("test", ContinueOnError)
	flags.SetOutput(io.Discard)
	var v flagVar
	flags.Var(&v, "v", "usage")
	if err := flags.Parse([]string{"-v", "1", "-v", "2", "-v=3"}); err != nil {
		t.Error(err)
	}
	if len(v) != 3 {
		t.Fatal("expected 3 args; got ", len(v))
	}

public class BasicAntBuilder extends org.gradle.api.AntBuilder implements Closeable {
    private final Field nodeField;
    private final List children;

    public BasicAntBuilder() {
        // These are used to discard references to tasks so they can be garbage collected
        Field collectorField;
        try {
            nodeField = groovy.ant.AntBuilder.class.getDeclaredField("lastCompletedNode");

/*
 * This sample demonstrates the ability to selectively include projects
 * from the local directory rather than using an external dependency.
 *
 * By default all projects are considered external and are picked up
 * from the "repo" ivy repository.  To include local projects in a build,
 * set the "useLocal" system property on the gradle command line:
 *
 *   gradle -DuseLocal=project1,project2 :showJarFiles
 *
 */
plugins {

		wc    io.Writer
		attrs []any
	}{
		{"separate", io.Discard, []any{
			String("program", "my-test-program"),
			String("package", "log/slog"),
			String("method", "GET"),
			String("URL", "https://pkg.go.dev/golang.org/x/log/slog"),
			String("traceID", "2039232309232309"),
			String("addr", "127.0.0.1:8080"),
		}},
		{"struct", io.Discard, structAttrs},
		{"struct file", outFile, structAttrs},
	} {

	go C.CallGoSleep()
	go C.CallGoSleep()
	go C.CallGoSleep()
	time.Sleep(1 * time.Second)

	prof := pprof.Lookup("goroutine")
	prof.WriteTo(io.Discard, 1)
	fmt.Println("OK")
}

//export GoSleep
func GoSleep() {
	time.Sleep(time.Hour)

import okhttp3.Interceptor
import okhttp3.Protocol
import okhttp3.Request
import okhttp3.Response
import okhttp3.internal.closeQuietly
import okhttp3.internal.connection.RealCall
import okhttp3.internal.discard
import okhttp3.internal.http.ExchangeCodec
import okhttp3.internal.http.HttpMethod
import okhttp3.internal.http.RealResponseBody
import okhttp3.internal.http.promisesBody
import okhttp3.internal.stripBody

            signing {
                useGpgCmd()
                sign(jar)
            }
        """

        // Remove the 'signing.gnupg.keyName' entry from the gradle.properties file, so the default key is picked up
        Properties properties = new Properties()
        properties.load(propertiesFile.newInputStream())
        properties.remove("signing.gnupg.keyName")
        properties.store(propertiesFile.newOutputStream(), "")

/*
 * This sample demonstrates the ability to selectively include projects
 * from the local directory rather than using an external dependency.
 *
 * By default all projects are considered external and are picked up
 * from the "repo" ivy repository.  To include local projects in a build,
 * set the "useLocal" system property on the gradle command line:
 *
 *   gradle -DuseLocal=project1,project2 :showJarFiles
 *
 */
plugins {