Method putInBothMaps

output/java_guava/1.4.17/AbstractBiMap.java:132–147

(@Nullable K key, @Nullable V value, boolean force)

  }

  private V putInBothMaps(@Nullable K key, @Nullable V value, boolean force) {
            checkKey(key);
            checkValue(value);
            boolean containedKey = containsKey(key);
            if (containedKey && Objects.equal(value, get(key))) {
              return value;
            }
            if (force) {
              inverse().remove(value);
            } else {
              checkArgument(!containsValue(value), "value already present: %s", value);
            }
            V oldValue = delegate.put(key, value);
            updateInverseMap(key, containedKey, oldValue, value);
            return oldValue;
  }

  private void updateInverseMap(K key, boolean containedKey, V oldValue, V newValue) {
    if (containedKey) {