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From Sim IJskes - QCG <...@qcg.nl>
Subject Re: strange problem with DGC
Date Fri, 05 Mar 2010 10:51:21 GMT
Peter Firmstone wrote:
> Note that when you export your service it's proxy is stored in 
> Marshalled form until the client discovers it, while in Marshalled form 

Eh, that isn't exactly true is it? After export, you get a Proxy with a 
reference to a BasicInvocationHandler with a reference to a 
BasicObjectEndpoint with a reference to a ImplContainer with a reference 
to your service.

As long as you keep the reference to the exported service, the service 
is 'strongly reachable' from the exported service.

The problem starts when you marshall it in 
BasicInvocationDispatcher.marshalReturn(), and the reply has enough 
latency to arive 'late' at the client side.

In this window the service becomes 'weakly reachable' and if the GC 
kicks in before DgcServer.dirty the object gets finalized.

Gr. Sim


-- 
QCG, Software voor het MKB, 071-5890970, http://www.qcg.nl
Quality Consultancy Group b.v., Leiderdorp, Kvk Leiden: 28088397

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