/guava/android/guava/src/com/google/common/collect/Ordering.java
return new CompoundOrdering<U>( null, checkNotNull( secondaryComparator) ) ;
return new CompoundOrdering<U> ( this, checkNotNull ( secondaryComparator ) ) ;
} <T2 extends T> Ordering<Entry<T2, ?>> onKeys() { return onResultOf(Maps.<T2>keyFunction()); } @GwtCompatible(serializable = true) public <U extends T> Ordering<U> compound(Comparator<? super U> secondaryComparator) { <extra_id_0> } @GwtCompatible(serializable = true) public static <T extends @Nullable Object> Ordering<T> compound( Iterable<? extends Comparator<? super T>> comparators) { return new CompoundOrdering<T>(comparators); }