Hi

> 2. If the application scale up to cluster, this design seems can't deal
with it
> (because the client always invoke remote object that was downloaded to
> cache, which is not dynamically locate by app. server in a cluster
> environment.)

Is this really an issue? Maybe I do not understand you correctly.
Is this the scenario you are thinking of:

When plugin is initialized it uses J2EE Server A to get the remote object.
Meantime J2EE Server A breaks down. Do you mean that remote object would not
be accessible anylonger?
I do not think this is an issue. It mmust be up to the J2EE Server to "hide"
clustering from the clients (here the plugin class)

I can see an issue in clustering though..The J2EE server must be able to
share/distribute ServletContexts across clusters...but isn't that a part of
the J2EE specs?

Any thoughts...also from others...

Regards

Henrik


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