Index: jackrabbit-core/src/main/java/org/apache/jackrabbit/core/persistence/bundle/util/NodePropBundle.java
===================================================================
--- jackrabbit-core/src/main/java/org/apache/jackrabbit/core/persistence/bundle/util/NodePropBundle.java	(revision 642065)
+++ jackrabbit-core/src/main/java/org/apache/jackrabbit/core/persistence/bundle/util/NodePropBundle.java	(working copy)
@@ -471,7 +471,7 @@
         //      + string: 20 + length
         //  + parentId: 160
         //  + id: 160
-        return 500 + size + 300 * (childNodeEntries.size() + properties.size() + 3);
+        return 500 + size + 300 * (childNodeEntries.size() + properties.size() + 3L);
     }
 
     /**