assertArgumentNotNull("props", props);
        assertArgumentNotNull("writer", writer);

        try {
            props.store(writer, comments);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * 指定のエンコーディングでファイルを書き出して{@link Properties}をストアします（例外処理はラップします）。
     *

        getProperties().store(out, comments);
    }

    @Override
    public void store(final Writer writer, final String comments) throws IOException {
        getProperties().store(writer, comments);
    }

    @Override
    public void storeToXML(final OutputStream os, final String comment, final String encoding) throws IOException {

        }
    }

    public static void writeBytes(final String pathname, final byte[] bytes) {
        try (FileOutputStream fos = OutputStreamUtil.create(new File(pathname))) {
            ChannelUtil.write(fos.getChannel(), ByteBuffer.wrap(bytes));
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    public static void deleteInBackground(final File file) {

        CloseableUtil.close(out);
    }

    private static class NotifyOutputStream extends OutputStream {
        private String notify_;

        @Override
        public void write(final int arg0) throws IOException {
        }

        @Override
        public void close() throws IOException {
            super.close();
            notify_ = "closed";
        }

     *
     * @param writer
     *            ライター
     * @return ラップされたライター
     */
    protected static Writer wrap(final Writer writer) {
        if (writer instanceof BufferedWriter) {
            return writer;
        }
        if (writer instanceof StringWriter) {
            return writer;
        }
        return new BufferedWriter(writer, DEFAULT_BUF_SIZE);
    }

     *            バイトバッファ。{@literal null}であってはいけません
     * @return 書き込んだバイト数
     */
    public static int write(final FileChannel channel, final ByteBuffer buffer) {
        assertArgumentNotNull("channel", channel);
        assertArgumentNotNull("buffer", buffer);

        try {
            return channel.write(buffer);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }