}

        public Builder stdIn(InputStream stdIn) {
            this.stdIn = stdIn;
            return this;
        }

        public Builder stdOut(OutputStream stdOut) {
            this.stdOut = stdOut;
            return this;
        }

        public Builder stdErr(OutputStream stdErr) {
            this.stdErr = stdErr;
            return this;
        }

        private final String[] args;
        private final int code;
        private final String stdout;
        private final String stderr;

        public ExecResult(String[] args, int code, String stdout, String stderr) {
            this.args = args;
            this.code = code;
            this.stdout = stdout;
            this.stderr = stderr;
        }

        @Override
        public String toString() {

     */
    private static class Result {
        final int exitCode;
        final String stdout;
        final String stderr;

        Result(int exitCode, String stdout, String stderr) {
            this.exitCode = exitCode;
            this.stdout = stdout;
            this.stderr = stderr;
        }

        boolean isSuccess() {
            return exitCode == 0;
        }

            wrapperScript.eachLine('UTF-8', { line -> commandString += "    ${line}\n"})
        }
        return commandString
    }

    /**
     * Writes a script to run the real executable, so that stdout/stderr can be captured.
     * TODO: this could be removed if we do use our own ProcessBuilder and pump output from the process
     */
    private void writeWrapperScript(String executable) {

        MavenSimpleLogger stdout = (MavenSimpleLogger) context.loggerFactory.getLogger("stdout");
        MavenSimpleLogger stderr = (MavenSimpleLogger) context.loggerFactory.getLogger("stderr");
        stdout.setLogLevel(LocationAwareLogger.INFO_INT);
        stderr.setLogLevel(LocationAwareLogger.INFO_INT);
        PrintStream psOut = new LoggingOutputStream(s -> stdout.info("[stdout] " + s)).printStream();

                ByteArrayOutputStream stdout = new ByteArrayOutputStream();
                project.exec(spec -> {
                    spec.setExecutable("sysctl");
                    spec.args("-n", "hw.physicalcpu");
                    spec.setStandardOutput(stdout);
                });

                _defaultParallel = Integer.parseInt(stdout.toString().trim());
            }

        return commandLine;
    }

    public Set<Option> getUsedDeprecatedOptions() {
        return usedDeprecatedOptions;
    }

    public void displayHelp(PrintStream stdout) {
        displayHelp(new PrintWriter(stdout));
    }

    public void displayHelp(PrintWriter pw) {
        HelpFormatter formatter = new HelpFormatter();

        int width = MessageUtils.getTerminalWidth();

	//go:cgo_dynamic_linker "/lib64/ld-linux-x86-64.so.2"
	//go:cgo_import_dynamic puts puts#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic __libc_start_main __libc_start_main#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic stdout stdout#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic fflush fflush#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic _ _ "libpthread.so.0"
	//go:cgo_import_dynamic _ _ "libc.so.6"

	b.Write([]byte("Hello "))
	fmt.Fprintf(&b, "world!")
	b.WriteTo(os.Stdout)
	// Output: Hello world!
}

func ExampleBuffer_reader() {
	// A Buffer can turn a string or a []byte into an io.Reader.
	buf := bytes.NewBufferString("R29waGVycyBydWxlIQ==")
	dec := base64.NewDecoder(base64.StdEncoding, buf)
	io.Copy(os.Stdout, dec)
	// Output: Gophers rule!
}

func ExampleBuffer_Bytes() {
	buf := bytes.Buffer{}

	// the output and parse it from there.
	filter, exitStr := newExitCodeFilter(os.Stdout)
	args += "; echo -n " + exitStr + "$?"

	cmd := adbCmd("exec-out", args)
	cmd.Stdout = filter
	// If the adb subprocess somehow hangs, go test will kill this wrapper
	// and wait for our os.Stderr (and os.Stdout) to close as a result.
	// However, if the os.Stderr (or os.Stdout) file descriptors are
	// passed on, the hanging adb subprocess will hold them open and