}

    fun platformMatches(platform: String): Matcher<Any> =
      object : BaseMatcher<Any>() {
        override fun describeTo(description: Description) {
          description.appendText(platform)
        }

        override fun matches(item: Any?): Boolean {
          return getPlatformSystemProperty() == platform
        }
      }

     *
     * @param text
     *            テキストノード。{@literal null}であってはいけません
     * @param buf
     *            文字列バッファ。{@literal null}であってはいけません
     */
    public static void appendText(final Text text, final StringBuilder buf) {
        assertArgumentNotNull("text", text);
        assertArgumentNotNull("buf", buf);

        buf.append(encodeText(text.getData()));
    }

    /**

        if (masterSecretHex != null) {
          val keyLog = "CLIENT_RANDOM $random $masterSecretHex"

          if (verbose) {
            println(keyLog)
          }
          logFile.appendText("$keyLog\n")
        }
      }

      random = null
    }

    enum class Launch {
      Gui,
      CommandLine,
    }
  }

  companion object {

        for (final byte b : bytes) {
            appendHex(sb, b);
        }
        return new String(sb);
    }

    /**
     * {@literal int}の値を16進数の文字列に変換します。
     *
     * @param i
     *            {@literal int}の値
     * @return 16進数の文字列
     */
    public static String toHex(final int i) {
        final StringBuilder buf = new StringBuilder();
        appendHex(buf, i);
        return new String(buf);

    }

    /**
     * @throws Exception
     */
    @Test
    public void testAppendHex() throws Exception {
        final StringBuilder buf = new StringBuilder();
        StringUtil.appendHex(buf, (byte) 1);
        assertEquals("01", buf.toString());
    }

    /**
     * @throws Exception
     */
    @Test
    public void testCamelize() throws Exception {