FULL PRODUCT VERSION :
1.6.0_02-b05

ADDITIONAL OS VERSION INFORMATION :
Windows XP SP2

A DESCRIPTION OF THE PROBLEM :
java.util.Date.equals(Object) method is not symmetric as required by the contract.
The behavior was observed on both 1.4 and 1.5 versions.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run the test class provided.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Should print:
false
false
ACTUAL -
true
false

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
class Test {
public static void main(String[] args) {
java.util.Date a = new java.util.Date();
java.sql.Timestamp b = new java.sql.Timestamp(a.getTime());
System.out.println(a.equals(b));
System.out.println(b.equals(a));
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
There is no workaround.