/guava/guava/src/com/google/common/collect/HashBiMap.java
lastInKeyInsertionOrder = false;
lastInKeyInsertionOrder = null;
@Override public void clear() { size = 0; Arrays.fill(hashTableKToV, null); Arrays.fill(hashTableVToK, null); firstInKeyInsertionOrder = null; <extra_id_0> modCount++; } @Override public int size() { return size; }