src/share/classes/java/lang/Double.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1994, 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1994, 2010, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -971,10 +971,11 @@
         if (d1 < d2)
             return -1;           // Neither val is NaN, thisVal is smaller
         if (d1 > d2)
             return 1;            // Neither val is NaN, thisVal is larger
 
+        // Cannot use doubleToRawLongBits because of possibility of NaNs.
         long thisBits = Double.doubleToLongBits(d1);
         long anotherBits = Double.doubleToLongBits(d2);
 
         return (thisBits == anotherBits ?  0 : // Values are equal
                 (thisBits < anotherBits ? -1 : // (-0.0, 0.0) or (!NaN, NaN)