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problems in programatically starting RMI Registry  RSS feed

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Posts: 180
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I want to start registry programmatically:-
I have written the Server class, but it gives me RuntimeException:


Strting Weather Service.....
Weather server Exception
java.rmi.server.ExportException: object already exported
at sun.rmi.transport.ObjectTable.putTarget(ObjectTable.java:172)
at sun.rmi.transport.Transport.exportObject(Transport.java:74)
at sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:229
at sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:393)
at sun.rmi.transport.LiveRef.exportObject(LiveRef.java:129)
at sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:19
at java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.
at java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.
at WeatherServiceImpl.main(WeatherServiceImpl.java:26)
Press any key to continue . . .

please help...
Posts: 1638
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You have only given the main method code. Can you give the entire WeatherServiceImpl code?
The issue does not seem to be with the RMI registry but with the export operation.
If your server extends UnicastRemoteObject, then it is automatically exported in the constructor, you do not need to export explicitly.
It is sorta covered in the JavaRanch Style Guide.
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