*/
  public void testMethodParameter(@Nullable Object instance, Method method, int paramIndex) {
    method.setAccessible(true);
    testParameter(instance, invokable(instance, method), paramIndex, method.getDeclaringClass());
  }

  /**
   * Verifies that {@code ctor} produces a {@link NullPointerException} or {@link

    assertEquals("text", mediaType.type)
    assertEquals("plain", mediaType.subtype)
    assertNull(mediaType.charsetName())
    assertEquals("text/plain;", mediaType.toString())
  }

  @Test fun testParameter() {
    val mediaType = parse("multipart/mixed; boundary=\"abcd\"")
    assertEquals("abcd", mediaType.parameter("boundary"))
    assertEquals("abcd", mediaType.parameter("BOUNDARY"))
  }