rmi

After upgraded from JRE 1.7.0_21 to 1.7.0_25-b15 my application started to throw NullPointerException in SwingUtilities.invokeLater(...) when it is run from Java WebStart. Surprisingly when it is executed as a standalone application (outside JWS), it works great. Here is the top of the stack: Exception in thread "AWT-EventQueue-2" java.lang.NullPointerException at sun.awt.SunToolkit.getSystemEventQueueImplPP(SunToolkit.java:1011) at sun.awt.SunToolkit.getSystemEventQueueImplPP(SunToolkit.java:1007) at sun.awt.SunToolkit.getSystemEventQueueImpl(SunToolkit.java:1002) at java.awt.Toolkit

Hi I have RMI application and now I try to invoke some methods at server from my client. I have following code: public static void main(final String[] args) { try { //Setting the security manager System.setSecurityManager(new RMISecurityManager()); IndicatorsService server = (IndicatorsService) Naming .lookup("rmi://localhost/" + IndicatorsService.SERVICE_NAME); DataProvider provider = new OHLCProvider(server); server.registerOHLCProvider(provider); } catch (MalformedURLException e) { e.printStackTrace(); } catch (RemoteException e) { e.printStackTrace(); } catch (NotBoundException e) { e

May I know what port is used by Java RMI connection? If I want to connect a Java client application to a Java server application using RMI connection, what port I need to open at the server machine so that the client application can connect to it? I want to set up a firewall in the server machine but I don't know which port I should open. skaffman RMI generally won't work over a firewall, since it uses unpredictable ports (it starts off on 1099, and then runs off with a random port after that). In these situations, you generally need to resort to tunnelling RMI over HTTP, which is described

I am trying to learn RMI coding and when I run server side of RMI I get connection refused. This is my server main method public static void main(String[] args)throws Exception { Implementation impl=new Implementation(); Naming.rebind("//localhost:2020/RMI", impl); System.out.println("Implementation has been bind to the name RMI and is ready for use"); } I believe that the code for Implementation does not matter as it simply is the implemented interface that will run the code. The exception I am getting is this Exception in thread "main" java.rmi.ConnectException: Connection refused to host:

I want someone to tell me where to search for how to make a session between the client(s) and the server in RMI, i.e what is the name of that concept for searching purposes? I named this the Remote Session pattern in my 2001 book. The idea is to have a singleton RMI object, bound in the Registry, with nothing but a login() method. That method, if successful, returns a new RemoteSession object for every call, that contains the API you need for the session. RemoteSession is another remote interface of course. It also contains a logout() method, which unexports the object, and it also implements

I have used RMI in my code : import java.rmi.*; public interface AddServerIntf extends Remote { double add(double d1,double d2) throws RemoteException; } import java.rmi.*; import java.rmi.server.*; public class AddServerImpl extends UnicastRemoteObject implements AddServerIntf { public AddServerImpl() throws RemoteException { } public double add(double d1,double d2) throws RemoteException { return d1+d2; } } import java.net.*; import java.rmi.*; public class AddServer { public static void main(String args[]) { try { AddServerImpl addServerImpl=new AddServerImpl(); Naming.rebind("AddServer"