/guava/android/guava/src/com/google/common/collect/AbstractNavigableMap.java
return Iterators.pollNext( ) ;
return Iterators.pollNext ( descendingEntryIterator ( ) ) ;
public Entry<K, V> pollFirstEntry() { return Iterators.pollNext(entryIterator()); } @Override @CheckForNull public Entry<K, V> pollLastEntry() { <extra_id_0> } @Override @ParametricNullness public K firstKey() { Entry<K, V> entry = firstEntry(); if (entry == null) {