--- jsr166/src/main/java/util/Random.java	2008/05/18 23:59:57	1.22
+++ jsr166/src/main/java/util/Random.java	2010/09/05 21:32:19	1.26
@@ -1,5 +1,5 @@
 /*
- * Copyright 1995-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -18,9 +18,9 @@
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
  */
 
 package java.util;
@@ -32,7 +32,7 @@ import sun.misc.Unsafe;
  * An instance of this class is used to generate a stream of
  * pseudorandom numbers. The class uses a 48-bit seed, which is
  * modified using a linear congruential formula. (See Donald Knuth,
- * <i>The Art of Computer Programming, Volume 3</i>, Section 3.2.1.)
+ * <i>The Art of Computer Programming, Volume 2</i>, Section 3.2.1.)
  * <p>
  * If two instances of {@code Random} are created with the same
  * seed, and the same sequence of method calls is made for each, they
@@ -50,6 +50,18 @@ import sun.misc.Unsafe;
  * <p>
  * Many applications will find the method {@link Math#random} simpler to use.
  *
+ * <p>Instances of {@code java.util.Random} are threadsafe.
+ * However, the concurrent use of the same {@code java.util.Random}
+ * instance across threads may encounter contention and consequent
+ * poor performance. Consider instead using
+ * {@link java.util.concurrent.ThreadLocalRandom} in multithreaded
+ * designs.
+ *
+ * <p>Instances of {@code java.util.Random} are not cryptographically
+ * secure.  Consider instead using {@link java.security.SecureRandom} to
+ * get a cryptographically secure pseudo-random number generator for use
+ * by security-sensitive applications.
+ *
  * @author  Frank Yellin
  * @since   1.0
  */
@@ -504,7 +516,7 @@ class Random implements java.io.Serializ
 
         // The seed is read in as {@code long} for
         // historical reasons, but it is converted to an AtomicLong.
-        long seedVal = (long) fields.get("seed", -1L);
+        long seedVal = fields.get("seed", -1L);
         if (seedVal < 0)
           throw new java.io.StreamCorruptedException(
                               "Random: invalid seed");