Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 686
  • Last Modified:

RMI Unmarshall Exception

Hi,

I am creating a java program which implements an interface to export functions over RMI. All my classes have been defined to be in the package jblog, including the interface class.

Unfortunately I am getting an exception (which I am catching) when running the program.
I am using the following commands:

#rmiregistry &
#java -classpath . jblog/BlogServer

 *** Server exception: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
        java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
        java.lang.ClassNotFoundException: jblog.BlogServerInterface

Open in new window


The exception seems to suggest that the BlogServerInterface class cannot be found, however this class file is in the same directory as the BlogServer class.

Here is the code for BlogServer and I have pointed out where the exception is being thrown:

		try
		{
			//create an object of current class and get stub
			BlogServer obj = new BlogServer();
			BlogServerInterface stub = (BlogServerInterface) UnicastRemoteObject.exportObject(obj, 0);

			// Bind the remote object's stub in the registry
			Registry registry = LocateRegistry.getRegistry();
			registry.rebind("BlogServerInterface", stub); // EXCEPTION THROWN HERE

			//server ready, now waiting for calls
			printToConsole("Server ready for remote calls");
		} catch (Exception e)
		{
				printToConsole("Server exception: " + e.toString());
		}

Open in new window


Any help much appreciated, thanks.
0
SnowCrash89
Asked:
SnowCrash89
  • 2
2 Solutions
 
sweetfa2Commented:
Does your registry server know about the interface class?
0
 
objectsCommented:
you need to make the classes network accessible

http://download.oracle.com/javase/tutorial/rmi/running.html
0
 
SnowCrash89Author Commented:
Yes thanks looks like I need to edit the codebase so that the interface class is found. I went for the easier option for now and removed all my classes from the jblog package (so now package is specified). This way it seems to have no trouble finding the class as the program works fine.
0
 
SnowCrash89Author Commented:
correction: *so no package is specified
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now