Method standardRemove

output/java_guava/1.4.18/ForwardingMap.java:170–182

A sensible, albeit inefficient, definition of #remove in terms of the iterator method of #entrySet. If you override #entrySet, you may wish to override #remove to forward to this implementation. Alternately, you may wish to override #remove with {@

(@Nullable Object key)

   */

  @Beta
  protected V standardRemove(@Nullable Object key) {
    Iterator<Entry<K, V>> entryIterator = entrySet().iterator();
    while (entryIterator.hasNext()) {
      Entry<K, V> entry = entryIterator.next();
      if (Objects.equal(entry.getKey(), key)) {
        V value = entry.getValue();
        entryIterator.remove();
        return value;
      }
    }
    return null;
  }

  /**
   * A sensible definition of {@link #clear} in terms of the {@code iterator}