I have a webservice, which takes java.lang.object objects as parameters (because at runtime only know hte type of object)...after doing process, reply response setting java.lang.Object to it. I am able to send the reuest objects to webservice from calling program, but getting NotSerializable exception while building the response from webservice. I came to know that 'if we implement, java.io.serializable, the mebmers also should be serializable objects'... here Object isnot a serializable object..it doesn't impllement Serializable.... If anyone could guide mw with right solution..I wouold be thankful. Thanks Bhaskar