if (args == null || args.length == 0) {
            return "";
        }
        final StringBuilder buffer = new StringBuilder();
        for (final Object arg : args) {
            buffer.append(arg + ", ");
        }
        buffer.setLength(buffer.length() - ", ".length());
        return new String(buffer);
    }

    /**
     * 初期化します。
     */

 *       garbage collection, <strong>AND</strong> this stream was not constructed with {@linkplain
 *       #FileBackedOutputStream(int) the 1-arg constructor} or the {@linkplain
 *       #FileBackedOutputStream(int, boolean) 2-arg constructor} passing {@code false} in the
 *       second parameter.
 * </ul>
 *
 * <p>This class is thread-safe.
 *
 * @author Chris Nokleberg
 * @since 1.0
 */

        if (methodArgs == null || methodArgs.length == 0) {
            return "";
        }
        final StringBuilder buf = new StringBuilder(100);
        for (final Object arg : methodArgs) {
            if (arg != null) {
                buf.append(arg.getClass().getName());
            } else {
                buf.append("null");
            }
            buf.append(", ");
        }

    }

    @Override
    public void init(Context context) throws Exception {}

    @Override
    public void onEvent(Object arg) throws Exception {
        if (arg instanceof ExecutionEvent) {
            ExecutionEvent ee = (ExecutionEvent) arg;
            InternalMavenSession session =
                    InternalMavenSession.from(ee.getSession().getSession());

        /**
         * @return String
         */
        public String foo() {
            return "hoge";
        }

        /**
         * @param arg
         * @return String
         */
        public static String bar(final String arg) {
            return arg;
        }
    }

    protected List<String> argList = new ArrayList<>();

    public PythonJob filename(final String filename) {
        this.filename = filename;
        return this;
    }

    public PythonJob arg(final String value) {
        argList.add(value);
        return this;
    }

    public PythonJob args(final String... values) {
        stream(values).of(stream -> stream.forEach(argList::add));
        return this;