Index: jackrabbit-core/src/main/java/org/apache/jackrabbit/core/cache/ConcurrentCache.java
===================================================================
--- jackrabbit-core/src/main/java/org/apache/jackrabbit/core/cache/ConcurrentCache.java	(revision 1049925)
+++ jackrabbit-core/src/main/java/org/apache/jackrabbit/core/cache/ConcurrentCache.java	(revision )
@@ -67,7 +67,10 @@
                 @Override
                 protected boolean removeEldestEntry(Map.Entry<K, E<V>> eldest) {
                     if (isTooBig()) {
-                        recordSizeChange(-eldest.getValue().size);
+                        E<V> val = eldest.getValue();
+                        if (val != null) {
+                            recordSizeChange(-val.size);
+                        }
                         return true;
                     } else {
                         return false;