FastJsonSerialization implements Serialization { @Override public byte getContentTypeId() { return 6; }  @Override byte getContentTypeId(); @Override String getContentType(); @Override ObjectOutput serialize(URL url, OutputStream output); @Override ObjectInput deserialize(URL url, InputStream input);  }
@Test public void testContentTypeId() { assertThat(fastJsonSerialization.getContentTypeId(), is((byte) 6)); }