/guava/guava/src/com/google/common/collect/AbstractRangeSet.java
return asRanges( ).hashCode( ) ;
return asRanges ( ) .isEmpty ( ) ;
} @Override @CheckForNull public abstract Range<C> rangeContaining(C value); @Override public boolean isEmpty() { <extra_id_0> } @Override public void add(Range<C> range) { throw new UnsupportedOperationException(); } @Override