/**
 * Adapts any type of element to the generic {@link HierarchicalElementDeduplicator}.
 *
 * @param <T> the type of element to de-duplicate
 */
public interface HierarchicalElementAdapter<T> {

    /**
     * Returns the original name of the given element.
     *
     * @param element the element, cannot be null
     * @return the name of the element, never null
     */

 *
 * @param <T> the type of element to de-duplicate
 */
public class HierarchicalElementDeduplicator<T> {

    private final HierarchicalElementAdapter<T> adapter;

    public HierarchicalElementDeduplicator(HierarchicalElementAdapter<T> adapter) {
        this.adapter = adapter;
    }

    /**
     * Calculates a set of renamings for each duplicate name in the given set of elements.
     *

            this.deduplicated = deduplicator.deduplicate(projectRegistry.getAllProjects());
        }
        return deduplicated;
    }

    private static class ProjectPathDeduplicationAdapter implements HierarchicalElementAdapter<ProjectState> {
        @Override
        public String getName(ProjectState element) {
            return element.getName();
        }

        @Override

        }

        public ProjectStateWrapper(String name) {
            this(name, null, null);
        }
    }

    private static class ProjectPathDeduplicationAdapter implements HierarchicalElementAdapter<ProjectStateWrapper> {
        private final Map<ProjectState, ProjectStateWrapper> projectToInformationMap;

                return identityName
            } else {
                return parent.path + ':' + identityName
            }
        }
    }

    private class DummyAdapter implements HierarchicalElementAdapter<DummyElement> {
        String getName(DummyElement element) {
            return element.name
        }

        String getIdentityName(DummyElement element) {
            return element.identityName

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