Atmos + timezone problem?

Hello,

In the course of evaluating Atmos, I've tried to write a small java uploader, "translating" from the .NET version of the quick start guide. This is what I've come up with:

public class HelloAtmosWorld {
    public static void main(String[] args) {
        
        Logger  logger = Logger.getLogger(HelloAtmosWorld.class);
        BasicConfigurator.configure();
        logger.setLevel(Level.ALL);
        
        logger.info("Initializing connection...");
        EsuApi esu= new EsuRestApi( "accesspoint.emccis.com", 80, "my token", "my shared" );
        UploadHelper helper = new UploadHelper( esu, null );
        logger.info("Done!");
        
        logger.info("Initializing upload...");
        ObjectId id = helper.createObject( new File( "/home/readme.txt" ), null, null );
        logger.info("Done!");
        
        logger.info("Object contents:");
        System.out.println( esu.readObject(id, null, null));
        logger.info("Done!");
    
    }
}

where "my token" = subtenantid/tokenid (tried all combinations - only subtenant/only token) and "my secret"=shared secret as per the confirmation e-mail.

Unfortunately, I end up with something like this:

0 [main] INFO gr.ntua.cslab.atmos.test.HelloAtmosWorld  - Initializing connection...
51 [main] DEBUG com.emc.esu.api.rest.EsuRestApi  - TZ: sun.util.calendar.ZoneInfo[id="GMT",offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
57 [main] DEBUG com.emc.esu.api.rest.EsuRestApi  - Date: Τρι, 26 Μαϊ 2009 12:31:09 GMT
59 [main] DEBUG com.emc.esu.api.rest.EsuRestApi  - Hashing: 
GET

Τρι, 26 Μαϊ 2009 12:31:09 GMT
/rest/namespacenull?metadata/system
x-emc-uid:c936ea05fce94111914de4d593f2fcc5/NTUA0F21D9CF00B06914
338 [main] DEBUG com.emc.esu.api.rest.EsuRestApi  - Hash: hOlmZW2PlhCpaw3UFL+j0sLGW5Q=
813 [main] DEBUG com.emc.esu.api.rest.EsuRestApi  - Error response: 

    1031
    The request timestamp was outside the valid time window.
867 [main] DEBUG com.emc.esu.api.rest.EsuRestApi  - Error: 1031 message: The request timestamp was outside the valid time window.

So the question is am I doing something wrong during the initialization fase? Should I try to mess with the calendar info, the metadata, or is it simply an access denied error?

Thanks in advance!