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diff --git a/libjava/classpath/javax/swing/ActionMap.java b/libjava/classpath/javax/swing/ActionMap.java
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+/* ActionMap.java --
+   Copyright (C) 2002, 2004, 2006, Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package javax.swing;
+
+import java.io.Serializable;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+
+/**
+ * Maps arbitrary keys (usually Strings) to {@link Action} instances. This
+ * is used in combination with {@link InputMap}s.
+ *
+ * If a component receives an input event, this is looked up in
+ * the component's <code>InputMap</code>. The result is an object which
+ * serves as a key to the components <code>ActionMap</code>. Finally
+ * the <code>Action</code> that is stored is executed.
+ *
+ * @author Andrew Selkirk
+ * @author Michael Koch
+ */
+public class ActionMap
+  implements Serializable
+{
+  private static final long serialVersionUID = -6277518704513986346L;
+
+  /**
+   * actionMap
+   */
+  private Map actionMap = new HashMap();
+
+  /**
+   * parent
+   */
+  private ActionMap parent;
+
+  /**
+   * Creates a new <code>ActionMap</code> instance.
+   */
+  public ActionMap()
+  {
+    // Nothing to do here.
+  }
+
+  /**
+   * Returns an action associated with an object.
+   *
+   * @param key the key of the enty
+   *
+   * @return the action associated with key, may be null
+   */
+  public Action get(Object key)
+  {
+    Object result = actionMap.get(key);
+
+    if (result == null && parent != null)
+      result = parent.get(key);
+
+    return (Action) result;
+  }
+
+  /**
+   * Puts a new <code>Action</code> into the <code>ActionMap</code>.
+   * If action is null an existing entry will be removed.
+   *
+   * @param key the key for the entry
+   * @param action the action.
+   */
+  public void put(Object key, Action action)
+  {
+    if (action == null)
+      actionMap.remove(key);
+    else
+      actionMap.put(key, action);
+  }
+
+  /**
+   * Remove an entry from the <code>ActionMap</code>.
+   *
+   * @param key the key of the entry to remove
+   */
+  public void remove(Object key)
+  {
+    actionMap.remove(key);
+  }
+
+  /**
+   * Returns the parent of this <code>ActionMap</code>.
+   *
+   * @return the parent, may be null.
+   */
+  public ActionMap getParent()
+  {
+    return parent;
+  }
+
+  /**
+   * Sets a parent for this <code>ActionMap</code>.
+   *
+   * @param parentMap the new parent
+   */
+  public void setParent(ActionMap parentMap)
+  {
+    if (parentMap != this)
+      parent = parentMap;
+  }
+
+  /**
+   * Returns the number of entries in this <code>ActionMap</code>.
+   *
+   * @return the number of entries
+   */
+  public int size()
+  {
+    return actionMap.size();
+  }
+
+  /**
+   * Clears the <code>ActionMap</code>.
+   */
+  public void clear()
+  {
+    actionMap.clear();
+  }
+
+  /**
+   * Returns all keys of entries in this <code>ActionMap</code>.
+   *
+   * @return an array of keys
+   */
+  public Object[] keys()
+  {
+    if (size() != 0)
+      return actionMap.keySet().toArray();
+    return null;
+  }
+
+  /**
+   * Returns all keys of entries in this <code>ActionMap</code>
+   * and all its parents.
+   *
+   * @return an array of keys
+   */
+  public Object[] allKeys()
+  {
+    Set set = new HashSet();
+
+    if (parent != null)
+      set.addAll(Arrays.asList(parent.allKeys()));
+
+    set.addAll(actionMap.keySet());
+    if (set.size() != 0)
+      return set.toArray();
+    return null;
+  }
+
+}