--- old/src/share/classes/java/lang/System.java	2013-04-29 21:12:09.630988789 -0700
+++ new/src/share/classes/java/lang/System.java	2013-04-29 21:12:09.430988779 -0700
@@ -1246,6 +1246,9 @@
             public StackTraceElement getStackTraceElement(Throwable t, int i) {
                 return t.getStackTraceElement(i);
             }
+            public String newStringUnsafe(char[] chars) {
+                return new String(chars, true);
+            }
         });
     }
 }
--- old/src/share/classes/sun/misc/JavaLangAccess.java	2013-04-29 21:12:10.318988822 -0700
+++ new/src/share/classes/sun/misc/JavaLangAccess.java	2013-04-29 21:12:10.114988812 -0700
@@ -97,4 +97,14 @@
      * Returns the ith StackTraceElement for the given throwable.
      */
     StackTraceElement getStackTraceElement(Throwable t, int i);
+
+    /**
+     * Returns a new string backed by the provided character array. The
+     * character array is not copied and must never be modified after the
+     * String is created in order to fulfill String's contract.
+     *
+     * @param chars the character array to back the string
+     * @return a newly created string whose content is the character array
+     */
+    String newStringUnsafe(char[] chars);
 }