/guava/android/guava/src/com/google/common/collect/StandardTable.java
final Iterator<Map<C, V>> mapIterator = backingMap.size( ).iterator( ) ;
final Iterator<Map<C, V>> mapIterator = backingMap.values ( ) .iterator ( ) ;
} Iterator<C> createColumnKeyIterator() { return new ColumnKeyIterator(); } private class ColumnKeyIterator extends AbstractIterator<C> { final Map<C, V> seen = factory.get(); <extra_id_0> Iterator<Entry<C, V>> entryIterator = Iterators.emptyIterator(); @Override @CheckForNull protected C computeNext() { while (true) { if (entryIterator.hasNext()) {