/**
     * @throws Exception
     */
    @Test
    public void testIsToOs() throws Exception {
        final int result = copy(is, os);
        assertThat(result, is(srcBytes.length));
        assertThat(os.toByteArray(), is(srcBytes));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReaderToWriter() throws Exception {
        final int result = copy(reader, writer);

      length: Int,
    ) {
      check(type == -1)
      this.type = Http2.TYPE_DATA
      this.inFinished = inFinished
      this.streamId = streamId
      this.data = source.readByteString(length.toLong()).toByteArray()
    }

    override fun rstStream(
      streamId: Int,
      errorCode: ErrorCode,
    ) {
      check(type == -1)
      this.type = Http2.TYPE_RST_STREAM
      this.streamId = streamId

            exception.printStackTrace(writer);
            writer.flush();
            append(buf, "exception", () -> StringEscapeUtils.escapeJson(new String(baos.toByteArray(), Constants.CHARSET_UTF_8)));
        } catch (final IOException e) {
            append(buf, "exception", () -> StringEscapeUtils.escapeJson(e.getMessage()));
        }
        return buf;
    }

            final ObjectOutputStream oos = new ObjectOutputStream(baos);
            try {
                oos.writeObject(obj);
            } finally {
                oos.close();
            }
            return baos.toByteArray();
        } catch (final IOException ex) {
            throw new IORuntimeException(ex);
        }
    }

    /**
     * {@literal byte}の配列をオブジェクトに変換します。
     *
     * @param bytes

                        ComponentUtil.getSystemProperties().store(baos, id);
                        try (final InputStream in = new ByteArrayInputStream(baos.toByteArray())) {
                            out.write(in);
                        }
                    }
                });
            }
            if (!id.endsWith(NDJSON_EXTENTION)) {

        assertArgumentNotNull("is", is);

        final ByteArrayOutputStream os = new ByteArrayOutputStream(BUF_SIZE);
        CopyUtil.copy(is, os);
        return os.toByteArray();
    }

    /**
     * {@link InputStream#available()}の例外処理をラップしたメソッドです。
     *
     * @param is
     *            入力ストリーム。{@literal null}であってはいけません
     * @return 可能なサイズ
     */

    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    new ObjectOutputStream(bytes).writeObject(object);
    return new ObjectInputStream(new ByteArrayInputStream(bytes.toByteArray())).readObject();
  }

    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    new ObjectOutputStream(bytes).writeObject(object);
    return new ObjectInputStream(new ByteArrayInputStream(bytes.toByteArray())).readObject();
  }