Henry, 

Try using basic objects (strictly-typed POJOs) and object arrays, and
stay away from Java-specific types and generalized collection types.

For example, you could use an array of:

public class MyHashEntry {
        String key;
        MyObject value;
        ...
}

Also, generalized collections will either not work or cause interop
problems.

Thanks, 

Nadeem 

-----Original Message-----
From: Henry Lu [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, April 08, 2008 12:00 AM
To: [email protected]
Subject: passing Map object and return Map object

I had problems to pass/return a Map/HashMap object to/from services. On
the server side, it recieved an empty map object, on the client side, it
returned an empty Map object. I used TCPMON to look at the xml data,
there is no data passing at all.

Any Ideas?

-Henry

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