submap view serialization works now properly.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1493561 13f79535-47bb-0310-9956-ffa450edef68

src/test/java/org/apache/commons/collections4/map/LazySortedMapTest.java

@@ -51,18 +51,12 @@ public class LazySortedMapTest<K, V> extends AbstractSortedMapTest<K, V> {
         return lazySortedMap(new TreeMap<K,V>(), FactoryUtils.<V>nullFactory());
     }
 
-    @Override
-    public boolean isSubMapViewsSerializable() {
-        // TODO TreeMap sub map views have a bug in deserialization.
-        return false;
-    }
-
     @Override
     public boolean isAllowNullKey() {
         return false;
     }
 
-    // from TestLazyMap
+    // from LazyMapTest
     //-----------------------------------------------------------------------
     @Override
     public void testMapGet() {