svn commit: r1378182 - /jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java

[mreutegg]

Author: mreutegg
Date: Tue Aug 28 15:40:27 2012
New Revision: 1378182

URL: http://svn.apache.org/viewvc?rev=1378182&view=rev
Log:
OAK-284: Reduce memory usage of KernelNodeState

Modified:
    
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java

Modified: 
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java
URL: 
http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java?rev=1378182&r1=1378181&r2=1378182&view=diff
==============================================================================
--- 
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java
 (original)
+++ 
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/kernel/KernelNodeState.java
 Tue Aug 28 15:40:27 2012
@@ -21,6 +21,7 @@ package org.apache.jackrabbit.oak.kernel
 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 @@ public final class KernelNodeState exten
             } while (reader.matches(','));
             reader.read('}');
             reader.read(JsopReader.END);
+            // optimize for empty childNodes
+            if (childNodes.isEmpty()) {
+                childNodes = Collections.emptyMap();
+            }
         }
     }