--- old/jdk/src/share/classes/java/lang/Thread.java	2013-05-08 19:23:18.989021791 +0400
+++ new/jdk/src/share/classes/java/lang/Thread.java	2013-05-08 19:23:18.845021788 +0400
@@ -137,6 +137,7 @@
  * @see     #stop()
  * @since   JDK1.0
  */
+@sun.misc.Contended
 public
 class Thread implements Runnable {
     /* Make sure registerNatives is the first thing <clinit> does. */