public Entry<K, V> pollFirstEntry() {
    OMVRBTreeEntry<K, V> p = getFirstEntry();
    Map.Entry<K, V> result = exportEntry(p);
    if (p != null)
      deleteEntry(p);
    return result;
  }
public Entry < K , V > pollFirstEntry ( ) { OMVRBTreeEntry < K , V > p = getFirstEntry ( ) ; Map . Entry < K , V > result = exportEntry ( p ) ; if ( p != null ) deleteEntry ( p ) ; return result ; }
@since 1.6