simple simulation problem using java

[standing]

Hello
I am a newbie to java swarm and I have problems with it.
I have made a simple supply chain swarm simulation.

the simulation is about the performance of different mode of market.
In this model, there are 3 agent classes, customer, manufacturer, and
supplier.  The other two classes are order and trust.  Order is create
by modelswarm and assign to customer.  Then customer query price and
deliver time to manufacturer.  Manufacturrer query to supplier, and
supplier quote to manufacturer.  After get the supplier's quote,
manufacture return the price to customer. 
 Then Customer(Manufacturer)  choice the best Manufacturer(Supplier) and
start to produce the order.  At final, customer(manufacture) update the
trust history to Trust class.

Can you pleas have a look at it and help me.

Scn4Simple.zip
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