/guava/guava/src/com/google/common/collect/TreeRangeSet.java
result.addAll ( rangeSet ) ; return result;
@VisibleForTesting final NavigableMap<Cut<C>, Range<C>> rangesByLowerBound; public static <C extends Comparable<?>> TreeRangeSet<C> create() { return new TreeRangeSet<>(new TreeMap<Cut<C>, Range<C>>()); } public static <C extends Comparable<?>> TreeRangeSet<C> create(RangeSet<C> rangeSet) { TreeRangeSet<C> result = create(); <extra_id_0> } public static <C extends Comparable<?>> TreeRangeSet<C> create(Iterable<Range<C>> ranges) { TreeRangeSet<C> result = create(); result.addAll(ranges); return result; }