src/share/classes/java/util/Collections.java

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2011, 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
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2012, 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
*** 1861,1870 ****
--- 1861,1872 ----
              super(list, mutex);
              this.list = list;
          }
  
          public boolean equals(Object o) {
+             if (this == o) 
+                 return true;
              synchronized (mutex) {return list.equals(o);}
          }
          public int hashCode() {
              synchronized (mutex) {return list.hashCode();}
          }