Help with java.rmi.server.codebase

I'm trying to setup my RMI server so it can load some if the needed
classes off an http server rather than having to put them on the local
system. Please note that I'm not interested in having the client load
these remote classes, only the RMI server. The script that's starting
this server looks like:

 

#!/bin/sh

export CLASSPATH=.

java -Djava.security.policy="policy.txt"
-Djava.rmi.server.codebase="http://mySrcServer/javasrc/dao/bin/
http://mySrcServer/javasrc/rmi/bin/"
-Djava.rmi.server.hostname="localhost"
com.ugs.xme.rmi.dto.proxy.DTOProxyServer

 

The policy.txt file I'm using looks like:

 

grant {

  permission java.net.SocketPermission "*", "accept, connect, listen,
resolve";

  permission java.util.PropertyPermission "*", "read";

  permission java.io.FilePermission "<<ALL FILES>>", "read, read, write,
delete, execute";

  permission java.lang.RuntimePermission "setIO";

};

 

And I have the following line in my server class:

 

System.setSecurityManager(new java.rmi.RMISecurityManager());

 

The error that I get when I try to start the service is:

 

Exception in thread "main" java.lang.NoClassDefFoundError:
com/ugs/xme/dto/Library

        at java.lang.Class.getDeclaredMethods0(Native Method)

        at java.lang.Class.privateGetDeclaredMethods(Class.java:2365)

        at java.lang.Class.privateGetPublicMethods(Class.java:2488)

        at java.lang.Class.getMethods(Class.java:1406)

        at sun.rmi.server.Util.getRemoteInterfaces(Util.java:221)

        at sun.rmi.server.Util.getRemoteInterfaces(Util.java:193)

        at sun.rmi.server.Util.createProxy(Util.java:126)

        at
sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:169)

        at
java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.jav
a:293)

        at
java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.jav
a:235)

        at
java.rmi.server.UnicastRemoteObject.<init>(UnicastRemoteObject.java:133)

        at
java.rmi.server.UnicastRemoteObject.<init>(UnicastRemoteObject.java:119)

        at
com.ugs.xme.rmi.dto.proxy.DTOProxyServerImpl.<init>(DTOProxyServerImpl.j
ava:21)

        at
com.ugs.xme.rmi.dto.proxy.DTOProxyServer.<init>(DTOProxyServer.java:17)

        at
com.ugs.xme.rmi.dto.proxy.DTOProxyServer.main(DTOProxyServer.java:52)

 

The Library class it's trying to load is located on the http server
(http://mySrcServer/javasrc/dao/bin/). I don't know if my problem is in
the security manager setup/permissions or if I'm just not using the
codebase property correctly. It looks like the Stub class for my
implementation is being loaded from off the http server but the Library
class is not.

 

Can someone tell me what I'm doing wrong here, any help would be
appreciated.

 

Thanks,

David


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