How to use

remove

method

in

org.apache.commons.collections4.MultiMap

/**
 * Removes an object from the index.
 *
 * @param object the object to remove
 */
private void removeFromIndex(final C object) {
  index.remove(keyTransformer.transform(object));
}

private void replaceHeader(String name, Object value) {
  if (responseExpirationCalculator != null) {
    responseExpirationCalculator.addHeader(name, value);
  }
  headers.remove(name);
  headers.put(name, value);
}