public boolean isMatch(final T e) {
        if (e == null) {
            return isMatch((Long) null);
        } else {
            return isMatch(e.getId());
        }
    }
@param id update so as not to change JAXB
stroom-legacy/stroom-legacy-model_6_1/src/main/java/stroom/legacy/model_6_1/EntityIdSet.java