Re: java.rmi.UnmarshalException

thanks Gregg,
i succeed to export my service . before i saw many examples which
only show how to provide services with the thing the proxy is the server

thank you again.

best regards

byron lee

2008/5/14, Gregg Wonderly <[email protected]>:
>
> liang li wrote:
>
>> thanks gregg.
>>     i will show your more detail:
>>
>
>    private void initializeJoinManager()
>>    {
>>        try
>>        {
>>            Log4JiniImpl impl = new Log4JiniImpl();
>>
>>            LookupDiscoveryManager manager = new LookupDiscoveryManager(
>>                    initialMemberGroups, null, null);
>>
>>
>>            JoinManager joinManager = new JoinManager(impl, null,
>>                    (Log4JiniImpl) impl, manager, null);
>>
>
> Here you are passing the join manager a non-exported object that is
> serializable.  So, that class must be present in the -dl.jar that you have
> specified in your codebase.  I am not sure, but I believe that you actually
> want to use an Exporter here, and if you do that, and use the
> BasicJeriExporter, you do not need to perform any RMIC operations because
> the _stub equivalent information is automatically generated by the exporter
> and provided to the remote client.
>
> So, my recommendation is to remove the Serializable declaration from
> Log4JiniImpl, and then replace your initializeJoinManager() method with the
> following code.
>
>    private volatile Exporter exp;
>    private volatile Remote svcObj;
>    private volatile Log4JiniImpl impl;
>    private void initializeJoinManager() {
>        try {
>            impl = new Log4JiniImpl();
>
>            LookupDiscoveryManager manager = new LookupDiscoveryManager(
>            initialMemberGroups, null, null);
>
>            // Get the exporter from config, but provide a default
>            exp = config.getEntry( COMPONENT, "exporter",
>                Exporter.class, new BasicJeriExporter(
>                TcpServerEndpoint.getInstance(0),
>                new BasicILFactory() ) );
>
>            // export the service
>            svcObj = exp.export( impl );
>
>            JoinManager joinManager = new JoinManager( svcObj, null,
>                (Log4JiniImpl) impl, manager, null);
>        } catch ( IOException ex ) {
>            log.log( Level.SEVERE, ex.toString(), ex );
>        }
>    }
>
> That will get you an exported service who's remote clients will only depend
> on the interface, and the types specified by the methods in that interface's
> declaration.
>
> All of these things are in the Jini documentation, and through Dan's
> plethora of information linked to from his website and from the
> http://jini.dev.java.net web site as well as http://www.jini.org.
>
> Gregg Wonderly
>

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