*/
    public Map<T, String> deduplicate(Iterable<? extends T> elements) {
        return new StatefulDeduplicator(elements).getNewNames();
    }

    /*
     * This inner class hides the fact that the actual de-duplication algorithm is stateful.
     */
    private class StatefulDeduplicator {

        private final List<T> elements;
        private final Multimap<String, T> elementsByName;

Class <org.gradle.plugins.ide.internal.configurer.HierarchicalElementDeduplicator$StatefulDeduplicator$1> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (HierarchicalElementDeduplicator.java:0)