--- a/jdk/src/java.base/share/classes/sun/util/resources/OpenListResourceBundle.java	Wed Jul 05 21:09:59 2017 +0200
+++ b/jdk/src/java.base/share/classes/sun/util/resources/OpenListResourceBundle.java	Mon Dec 21 20:54:00 2015 +0100
@@ -164,6 +164,6 @@
         return new HashSet<>();
     }
 
-    private volatile Map<String, Object> lookup = null;
+    private volatile Map<String, Object> lookup;
     private volatile Set<String> keyset;
 }