How to use

remove

method

in

org.jfree.ui.action.DowngradeActionMap

/**
 * Adds a binding for <code>key</code> to <code>action</code>.
 * If <code>action</code> is null, this removes the current binding
 * for <code>key</code>.
 * <p>In most instances, <code>key</code> will be
 * <code>action.getValue(NAME)</code>.
 *
 * @param key the key for the action.
 * @param action the action to be added.
 */
public void put(final Object key, final Action action) {
  if (action == null) {
    remove(key);
  }
  else {
    if (this.actionMap.containsKey(key)) {
      remove(key);
    }
    this.actionMap.put(key, action);
    this.actionList.add (key);
  }
}

/**
 * Adds a binding for <code>key</code> to <code>action</code>.
 * If <code>action</code> is null, this removes the current binding
 * for <code>key</code>.
 * <p>In most instances, <code>key</code> will be
 * <code>action.getValue(NAME)</code>.
 *
 * @param key the key for the action.
 * @param action the action to be added.
 */
public void put(final Object key, final Action action) {
  if (action == null) {
    remove(key);
  }
  else {
    if (this.actionMap.containsKey(key)) {
      remove(key);
    }
    this.actionMap.put(key, action);
    this.actionList.add (key);
  }
}

/**
 * Adds a binding for <code>key</code> to <code>action</code>.
 * If <code>action</code> is null, this removes the current binding
 * for <code>key</code>.
 * <p>In most instances, <code>key</code> will be
 * <code>action.getValue(NAME)</code>.
 *
 * @param key the key for the action.
 * @param action the action to be added.
 */
public void put(final Object key, final Action action) {
  if (action == null) {
    remove(key);
  }
  else {
    if (this.actionMap.containsKey(key)) {
      remove(key);
    }
    this.actionMap.put(key, action);
    this.actionList.add (key);
  }
}