--- old/src/java.base/share/classes/java/lang/String.java	2014-12-19 12:15:39.319858004 +0300
+++ new/src/java.base/share/classes/java/lang/String.java	2014-12-19 12:15:39.179858009 +0300
@@ -128,6 +128,11 @@
      */
     private static final ObjectStreamField[] serialPersistentFields =
         new ObjectStreamField[0];
+    
+    /**
+     * a shared instance of the string value for empty strings.
+     */
+    private static final char[] EMPTY_STRING_VALUE = new char[0];
 
     /**
      * Initializes a newly created {@code String} object so that it represents
@@ -135,7 +140,7 @@
      * unnecessary since Strings are immutable.
      */
     public String() {
-        this.value = new char[0];
+        this.value = EMPTY_STRING_VALUE;
     }
 
     /**