DFC Code - Obtain Docbase Session

package dctm1;

import com.documentum.com.DfClientX;
import com.documentum.com.IDfClientX;
import com.documentum.fc.client.DfClient;
import com.documentum.fc.client.IDfClient;
import com.documentum.fc.client.IDfFolder;
import com.documentum.fc.client.IDfSession;
import com.documentum.fc.client.IDfSessionManager;
import com.documentum.fc.client.IDfSysObject;
import com.documentum.fc.common.DfException;
import com.documentum.fc.common.IDfLoginInfo;

public class testsession extends kavidoc {

public static void main(String[] args) throws DfException {
// TODO Auto-generated method stub

IDfClientX cx=new DfClientX();
IDfClient c=cx.getLocalClient();
IDfSessionManager sm=c.newSessionManager();
IDfLoginInfo login=cx.getLoginInfo();
login.setUser(uname);
login.setPassword(pwd);
sm.setIdentity(docbase, login);
IDfSession s=sm.getSession(docbase);
if(s!=null)
{
System.out.println("Session obtained succesfull");
System.out.println(s);
sm.release(s);
}
else
{
System.out.println("Login failed");
}
}

}