Enable subclasses to be serializable

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@131624 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -32,13 +32,21 @@ import org.apache.commons.collections.OrderedMapIterator;
  * But, you might want that loophole, so this class is kept simple.
  *
  * @since Commons Collections 3.0
- * @version $Revision: 1.6 $ $Date: 2004/02/18 01:13:19 $
+ * @version $Revision: 1.7 $ $Date: 2004/04/02 21:17:48 $
  * 
  * @author Stephen Colebourne
  */
 public abstract class AbstractOrderedMapDecorator
         extends AbstractMapDecorator implements OrderedMap {
 
+    /**
+     * Constructor only used in deserialization, do not use otherwise.
+     * @since Commons Collections 3.1
+     */
+    protected AbstractOrderedMapDecorator() {
+        super();
+    }
+
     /**
      * Constructor that wraps (not copies).
      *

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

@@ -31,13 +31,21 @@ import java.util.SortedMap;
  * But, you might want that loophole, so this class is kept simple.
  *
  * @since Commons Collections 3.0
- * @version $Revision: 1.4 $ $Date: 2004/02/18 01:13:19 $
+ * @version $Revision: 1.5 $ $Date: 2004/04/02 21:16:50 $
  * 
  * @author Stephen Colebourne
  */
 public abstract class AbstractSortedMapDecorator
         extends AbstractMapDecorator implements SortedMap {
 
+    /**
+     * Constructor only used in deserialization, do not use otherwise.
+     * @since Commons Collections 3.1
+     */
+    protected AbstractSortedMapDecorator() {
+        super();
+    }
+
     /**
      * Constructor that wraps (not copies).
      *