@Override
    protected <T> byte[] toByteArray(T message, Schema<T> schema)
    {
        return JsonXIOUtil.toByteArray(message, schema, true, buf());
    }
Json standard tests (numeric) using {@link JsonXOutput}.

@author David Yu
@created Oct 11, 2010
protostuff-json/src/test/java/io/protostuff/JsonXBufferedNumericStandardTest.java