entityType.addProperty(new Property(entityType, "dt", new ClassType(TypeCategory.DATETIME, Date.class)));
entityType.addProperty(new Property(entityType, "i", new ClassType(TypeCategory.NUMERIC, Integer.class)));
entityType.addProperty(new Property(entityType, "s", new ClassType(TypeCategory.STRING, String.class)));
entityType.addProperty(new Property(entityType, "t", new ClassType(TypeCategory.TIME, Time.class)));
serializer.serialize(entityType, SimpleSerializerConfig.DEFAULT, new JavaWriter(writer));
// TODO : assertions
}