public static String plural(final String singular, final Collection<?> collection) {
        return collection != null && collection.size() > 1
                ? singular + "s"
                : singular;
    }
@return singular + "s" if {@link Collection#size()} is > 1, else singular
e.g.
<pre>{@code pluralSuffix("document", list)}</pre>
stroom-util-shared/src/main/java/stroom/util/shared/StringUtil.java