java.rmi.ConnectException

[Jonathan Blok]

Hello everyone,

I am having a problem setting up my RMI connection. When executing this code:

try
		{
			if(java.rmi.registry.LocateRegistry.getRegistry()== null)
			{
				java.rmi.registry.LocateRegistry.createRegistry(1099);
			}
			System.out.println(">>> RMI registry on port: "+java.rmi.registry.LocateRegistry.getRegistry().REGISTRY_PORT);
			System.setProperty("java.security.policy", "server.policy");
			System.out.println(">>> RMI policy ready");
			
			if (System.getSecurityManager() == null)
			{
				System.setSecurityManager(new RMISecurityManager());
			}
			System.out.println(">>> SecurityManager ready.");
		
			Naming.rebind("rmi//127.0.0.1:1099/GraphHelperServer", new GraphHelperImplementation());
		}
		catch (MalformedURLException e)
		{
			e.printStackTrace();
			System.exit(0);
		}
		catch (RemoteException e)
		{
			e.printStackTrace();
			System.exit(0);
		}

I receive these errors:

java.rmi.ConnectException: Connection refused to host: 192.168.13.18; nested exception is: 
	java.net.ConnectException: Connection refused: connect
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601)
	at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)
	at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
	at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)
	at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
	at java.rmi.Naming.rebind(Naming.java:160)
	at de.ivu.rmi.GraphHelperServer.main(GraphHelperServer.java:45)
Caused by: java.net.ConnectException: Connection refused: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
	at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
	at java.net.Socket.connect(Socket.java:525)
	at java.net.Socket.connect(Socket.java:475)
	at java.net.Socket.<init>(Socket.java:372)
	at java.net.Socket.<init>(Socket.java:186)
	at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
	at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)
	... 6 more

When I telnet or portscan 192.168.13.18 (which is my ip address given to me by a switch), I am not able to connect. However when I telnet or portscan 127.0.0.1 I am able to connect to port 1099. The company I work at does use a proxy but I set Java to 'direct connection' in the Control Panel so I do not think the proxy is involved. I have also added an 'RMI' exception entry in my Windows XP firewall on port 1099. A tracert to 192.168.13.18 takes one hop so I do not think that the switch is the problem.

My questions are these:
>Why does RMI try to connect to 192.168.13.18 in stead of 127.0.0.1, where is this setting stored?
>Why doesn't 192.168.13.18 work while 127.0.0.1 does, any ideas what could be causing this?

Any help would be greatly appreciated.

[Martin Vanyavchich]

Hi,

I think you're missing a collon in URL for your RMI. Try it like this:

  Naming.rebind("rmi://127.0.0.1:1099/GraphHelperServer", new GraphHelperImplementation());    

Regards, Martin

[rajshkhr pandey]

Hello to all,

Actually I am getting same error while developing the RMI application few days ago, so when I removed the Security Manager and applied appropriate policy the application worked.
Or either your RMIRegistry is not running