Merging from -r468106:814127 of collections_jdk5_branch - namely where this code was generified; mostly in r738956.

Also see the following revisions:

    ------------------------------------------------------------------------
    r740150 | mbenson | 2009-02-02 15:24:00 -0800 (Mon, 02 Feb 2009) | 1 line
    
    make all [collections] maps implement IterableMap
    ------------------------------------------------------------------------


git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@815070 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/commons/collections/map/AbstractIterableMap.java

@@ -0,0 +1,38 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.collections.map;
+
+import org.apache.commons.collections.IterableMap;
+import org.apache.commons.collections.MapIterator;
+
+/**
+ * Provide a basic {@link IterableMap} implementation.
+ * @since Commons Collections 5
+ * @TODO fix version
+ * @version $Revision$ $Date$
+ *
+ * @author Matt Benson
+ */
+public abstract class AbstractIterableMap<K, V> implements IterableMap<K, V> {
+
+    /**
+     * {@inheritDoc}
+     */
+    public MapIterator<K, V> mapIterator() {
+        return new EntrySetToMapIteratorAdapter<K, V>(entrySet());
+    }
+}