public SortedSet headSet(Object toElement) { return getSortedSet().headSet(toElement); }
public SortedSet tailSet(Object fromElement) { return getSortedSet().tailSet(fromElement); }
public Object first() { return getSortedSet().first(); }
public Object last() { return getSortedSet().last(); }
public Comparator comparator() { return getSortedSet().comparator(); }
public Object first() { return getSortedSet().first(); }
public Object last() { return getSortedSet().last(); }
public SortedSet headSet(Object toElement) { return getSortedSet().headSet(toElement); }
public Comparator comparator() { return getSortedSet().comparator(); }
public SortedSet tailSet(Object fromElement) { return getSortedSet().tailSet(fromElement); }
public SortedSet subSet(Object fromElement, Object toElement) { return getSortedSet().subSet(fromElement, toElement); }
public SortedSet subSet(Object fromElement, Object toElement) { return getSortedSet().subSet(fromElement, toElement); }
public SortedSet tailSet(Object fromElement) { return getSortedSet().tailSet(fromElement); }
public Object last() { return getSortedSet().last(); }
public Comparator comparator() { return getSortedSet().comparator(); }
public Object last() { return getSortedSet().last(); }
public Object last() { return getSortedSet().last(); }
public SortedSet headSet(Object toElement) { return getSortedSet().headSet(toElement); }
public Comparator comparator() { return getSortedSet().comparator(); }
public SortedSet subSet(Object fromElement, Object toElement) { return getSortedSet().subSet(fromElement, toElement); }