NegativeArraySizeException while decoding ProductSnapshot

public static void main(String[] args) throws IOException {
    MessageTemplateLoader templateLoader = new XMLMessageTemplateLoader();
    
    List<MessageTemplate> templates = new ArrayList<>();
    MessageTemplate[] hardcodedTemplates = templateLoader.load(new ByteArrayInputStream("<template id=\"120\" name=\"FastReset\"></template>".getBytes()));
    templates.addAll(Arrays.asList(hardcodedTemplates));
    try (InputStream templateSource = Main.class.getClassLoader().getResourceAsStream("RDDFastTemplates-1.1.xml")) { 
        templates.addAll(Arrays.asList(templateLoader.load(templateSource)));
    }
    
    try (InputStream fastEncodedStream = Main.class.getClassLoader().getResourceAsStream("fastdata.bin")) {
        MessageInputStream messageIn = new MessageInputStream(fastEncodedStream);
        messageIn.getContext().setTraceEnabled(true);
        for (MessageTemplate mt : templates) {
            messageIn.registerTemplate(Integer.valueOf(mt.getId()), mt);
        }
        Message message = null;
        do {
            message = messageIn.readMessage();
            System.out.println(message);
        } while (message != null);
    }
}