RMI Required help

vivekr · 12-09-2005, 10:20 AM

Hai actually I am implementing a sort of mailserver with chat.
I have partially implemented it and it ran on another system. Now in my box

Code:

MailServerImpl-- the implementation class

G:\mailserver7>rmic MailServerImpl

G:\mailserver7>dir *stub*
 Volume in drive G is STUDIES
 Volume Serial Number is 403A-2012

 Directory of G:\mailserver7

10/06/2005  08:57 PM             6,305 MailImpl_Stub.class
10/06/2005  08:57 PM             9,811 MailBoxImpl_Stub.class
12/09/2005  09:41 PM             6,657 MailServerImpl_Stub.class
               3 File(s)         22,773 bytes
               0 Dir(s)   5,431,361,536 bytes free

G:\mailserver7>java MailServerImpl
java.rmi.ServerException: Server RemoteException; nested exception is:
        java.rmi.UnmarshalException: error unmarshalling arguments; nested excep
tion is:
        java.lang.ClassNotFoundException: MailServerImpl_Stub
        at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(Unknow
n Source)
        at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
        at sun.rmi.server.UnicastRef.invoke(Unknown Source)
        at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
        at java.rmi.Naming.rebind(Unknown Source)
        at MailServerImpl.main(Unknown Source)
Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested ex
ception is:
        java.lang.ClassNotFoundException: MailServerImpl_Stub
Caused by: java.lang.ClassNotFoundException: MailServerImpl_Stub

I have given the response spitted by the system. Also when I started the rmiregistry

Code:

security properties not found. using defaults.

the above msg popped up.

If u need info on code I am ready to post it.
I havent mastered rmi yet. So i may commit errors. Please help me

vireshwali · 12-19-2005, 02:48 AM

You need to make a security policy file and add that to java.security.policy system variable.
Are you doing it?

vivekr · 12-19-2005, 08:12 AM

Actually I know that sth has to be done with the security policy. But since I am doing all this by myself, and I couldnt get enough mateerials on how to deal with security policies of RMI, I am stranded. Now I got u. Can u jus tell me how to do that?

Thank u so much 4 ur response.
(But I have tried sth like java -Djava.SecurityPolicy. .... . Wont this have the same effect of adding security policy file to Sysvariable)