Index: src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>windows-1252
===================================================================
--- src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java	(revision 1378039)
+++ src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java	(revision )
@@ -21,6 +21,7 @@
 import static org.apache.jackrabbit.oak.kernel.CoreValueMapper.fromJsopReader;
 import static org.apache.jackrabbit.oak.kernel.CoreValueMapper.listFromJsopReader;
 
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
@@ -124,6 +125,10 @@
             } while (reader.matches(','));
             reader.read('}');
             reader.read(JsopReader.END);
+            // optimize for empty childNodes
+            if (childNodes.isEmpty()) {
+                childNodes = Collections.emptyMap();
+            }
         }
     }