With the fix pattern of 5103041, the implementation is not in line
with API saying.

http://java.sun.com/j2se/1.5.0/docs/api/java/sql/Timestamp.html#compareTo(java.util.Date)
----->
public int compareTo(Date o) Compares this Timestamp object to the
given Date, which must be a Timestamp object. If the argument is not a
Timestamp object, this method throws a ClassCastException
object. (Timestamp objects are comparable only to other Timestamp
objects.)
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Below is 5103041's source diff. It never throw ClassCastException though
specifying an object other than Timestamp in the argument.

----->
------- Timestamp.java -------
*** /tmp/geta5365 Tue Apr 24 01:22:01 2007
--- /tmp/getb5365 Tue Apr 24 01:22:01 2007
***************
*** 1,5 ****
  /*
! * %W% %E%
   *
   * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
   * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
--- 1,5 ----
  /*
! * @(#)Timestamp.java 1.58 04/05/18
   *
   * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
   * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
***************
*** 464,482 ****
       * and a value greater than <code>0</code> if this
       * <code>Timestamp</code> object is after the given argument.
       *
- * @exception ClassCastException if the argument is not a
- * <code>Timestamp</code> object
       * @since 1.5
       */
- // This forwarding method ensures that the compareTo(Date) method defined
- // in java.util.Date is not invoked on a Timestamp
      public int compareTo(java.util.Date o) {
          return compareTo((Timestamp)o);
      }
              
-
-
-
      static final long serialVersionUID = 2745179027874758501L;
  
  }
--- 464,485 ----
       * and a value greater than <code>0</code> if this
       * <code>Timestamp</code> object is after the given argument.
       *
       * @since 1.5
       */
      public int compareTo(java.util.Date o) {
+ if(o instanceof Timestamp) {
+ // When Timestamp instance compare it with a Timestamp
+ // Hence it is basically calling this.compareTo((Timestamp))o);
+ // Note typecasting is safe because o is instance of Timestamp
             return compareTo((Timestamp)o);
+ } else {
+ // When Date doing a o.compareTo(this)
+ // will give wrong results.
+ Timestamp ts = new Timestamp(o.getTime());
+ return this.compareTo(ts);
        }
+ }
  
      static final long serialVersionUID = 2745179027874758501L;
  
  }
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