--- old/src/java.base/share/classes/java/time/ZoneId.java	2015-02-22 20:39:44.555107230 +0100
+++ new/src/java.base/share/classes/java/time/ZoneId.java	2015-02-22 20:39:44.456108970 +0100
@@ -61,6 +61,8 @@
  */
 package java.time;
 
+import sun.misc.SharedSecrets;
+
 import java.io.DataOutput;
 import java.io.IOException;
 import java.io.InvalidObjectException;
@@ -271,7 +273,7 @@
      * @throws ZoneRulesException if the converted zone region ID cannot be found
      */
     public static ZoneId systemDefault() {
-        return TimeZone.getDefault().toZoneId();
+        return SharedSecrets.getJavaUtilTimeZoneAccess().getDefaultRef().toZoneId();
     }
 
     /**