Usually, the RMI client is an RMI client only in that it specifies the true store zone for certificates. For example, you can use any certificate available to System.setProperty:

("javax.net.ssl.trustStore","SSLcert"); System.setProperty("javax.net.ssl.trustStorePassword","e1002qa2"); 

In this example, the remote interface is SumaInterface and there’s only one remote method called Suma:

import java.rmi.*;import java.rmi.server.*;import javax.rmi.ssl.SslRMIServerSocketFactory;import javax.rmi.ssl.SslRMIClientSocketFactory;public class SumaImpl extends UnicastRemoteObject implements SumaInterface{//constructorpublic SumaImpl(int port,RMIClientSocketFactory rmiC, RMIServerSocketFactory rmiS)throws RemoteException       {       //optional       super(port,rmiC,rmiS);       }         //implementing the Suma methodpublic int Suma(int a,int b)throws RemoteException{  return (a+b);    }    public static void main(String[] args)      {            SumaImpl SI=null;            System.setProperty("javax.net.ssl.keyStore","SSLcert");      System.setProperty("javax.net.ssl.keyStorePassword","e1002qa2");      RMIClientSocketFactory rmiClientSocketFactory=new SslRMIClientSocketFactory();     RMIServerSocketFactory rmiServerSockeyFactory=new SslRMIServerSocketFactory();      //create the remote object      try{         SI=new SumaImpl(0,rmiClientSocketFactory,rmiServerSockeyFactory);                }catch(java.rmi.RemoteException e)            {System.out.println(e.getMessage());}      	//registration of SI object      try{                 Naming.bind("rmi://localhost:1099/Adunare",SI);         }catch(java.rmi.AlreadyBoundException e)            {System.out.println(e.getMessage());         }catch(java.net.MalformedURLException e)                {System.out.println(e.getMessage());         }catch(java.rmi.RemoteException e)            {System.out.println(e.getMessage());}                  }}