src/main/java/net/wasdev/wlp/common/plugins/util/InstallFeatureUtil.java
public static boolean containsIgnoreCase(Collection<String> reference, Collection<String> target) {
        return toLowerCase(reference).containsAll(toLowerCase(target));
    }
public static boolean containsIgnoreCase(Collection<String> reference, Collection<String> target) {
        return toLowerCase(reference).containsAll(toLowerCase(target));
    }
Returns whether the reference collection contains all of the strings in the target collection, ignoring case.

@param reference The reference collection
@param target The target collection
@return true if reference contains all Strings from target, ignoring case