JSAGA

I get exception for the code below:

import org.ogf.saga.context.*;
import org.ogf.saga.namespace.*;
import org.ogf.saga.session.*;
import org.ogf.saga.url.*;

public class MyProxy {

    public static void main(String[] args) {
        try {
            URL url = URLFactory.createURL("gsiftp://dpm.hpcc.sztaki.hu:2811/tmp");
            Session session = SessionFactory.createSession(false);
            Context ctx = ContextFactory.createContext("MyProxy"); // context type
            ctx.setAttribute(Context.SERVER, "myproxy.hpcc.sztaki.hu"); // server address (port: 7512)
            ctx.setAttribute(Context.USERID, "ahajnal"); // user id to get proxy from myproxy server
            ctx.setAttribute("MyProxyPass", "***"); // password to get proxy from myproxy server
            ctx.setAttribute("DelegationLifeTime", "PT12H"); // of the generated by proxy (optional?)
            //ctx.setAttribute(Context.USERPROXY, "myproxyfilename"); // java.io.FileNotFoundException: myproxyfilename
            ctx.setAttribute(Context.CERTREPOSITORY, "C:/Documents and Settings/Akos Hajnal/.globus/certificates/"); // cert dir 
            session.addContext(ctx);
            NSDirectory dir = NSFactory.createNSDirectory(session, url);
            for (URL dirEntry: dir.list()) System.out.println(dirEntry.getPath());
            dir.close();
        } catch (Exception e) { e.printStackTrace(); }
    }
}

The exception is:

NoSuccess: java.io.FileNotFoundException: null.myproxy (The system cannot find the file specified)
    at fr.in2p3.jsaga.adaptor.security.MyProxySecurityAdaptor.createSecurityCredential(MyProxySecurityAdaptor.java:196)
    at fr.in2p3.jsaga.impl.context.ContextImpl.createCredential(ContextImpl.java:282)
    at fr.in2p3.jsaga.impl.session.SessionImpl.addContext(SessionImpl.java:63)
    at MyProxy.main(MyProxy.java:20)
Caused by: java.io.FileNotFoundException: null.myproxy (The system cannot find the file specified)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:120)
    at fr.in2p3.jsaga.adaptor.security.MyProxySecurityAdaptor.load(MyProxySecurityAdaptor.java:273)
    at fr.in2p3.jsaga.adaptor.security.MyProxySecurityAdaptor.createSecurityCredential(MyProxySecurityAdaptor.java:181)
    ... 3 more

Regards,
Akos Hajnal