Properties properties = new Properties();

            properties.setProperty("java.naming.factory.initial",
                    "com.sun.enterprise.naming.SerialInitContextFactory");

            properties.setProperty(
                    "org.omg.CORBA.ORBInitialHost",
                    "172.16.1.192");

            properties.setProperty(
                    "org.omg.CORBA.ORBInitialPort",
                    "3700");

            InitialContext initialContext = new InitialContext(properties);
            

            DebugRemoteSessionBeanRemote drsbr=(DebugRemoteSessionBeanRemote)initialContext.lookup("DebugRemoteSessionBean");
            System.out.println(drsbr.debug_get_singleton_string());
            drsbr.debug_set_singleton_string("_7");
            //System.out.println(drsbr.debug_get_singleton_string());
            drsbr.debug_set_singleton_string("_8");
            System.out.println(drsbr.debug_get_singleton_string());

@Stateless(name = "DebugRemoteSessionBean", mappedName = "DebugRemoteSessionBean")
public class DebugRemoteSessionBean implements DebugRemoteSessionBeanRemote, DebugRemoteSessionBeanLocal {

    String debug_str="Hello";
    
    
    @Override
    public String debug_get_singleton_string(){
        return debug_str;
    }
    
    @Override
    public void debug_set_singleton_string(String str){
        debug_str+=str;
    }
    
}

            Map properties = new HashMap();
            properties.put("javax.persistence.jdbc.driver", "oracle.jdbc.OracleDriver");
            properties.put("javax.persistence.jdbc.user", IMCConfigs.getConfig(IMCConfigs.SERVER_SQL_USER));
            properties.put("javax.persistence.jdbc.password", IMCConfigs.getConfig(IMCConfigs.SERVER_SQL_PASSWORD));
            properties.put("javax.persistence.jdbc.url", IMCConfigs.getConfig(IMCConfigs.SERVER_SQL_URL));
            properties.put("eclipselink.jdbc.connections.initial", "1");
            properties.put("eclipselink.jdbc.connections.min", "1");
            properties.put("eclipselink.jdbc.connections.max", "4");
            EntityManagerFactoryForSave = Persistence.createEntityManagerFactory("ServerPUsave", properties);

    @PersistenceContext(unitName = "ServerPU")
    private EntityManager em;
    @PersistenceContext(unitName = "SysdbfPU")
    private EntityManager sysdbfem;
    @Resource(name = "medfin_con")
    private DataSource ds;
    private EntityManagerFactory EntityManagerFactoryForSave;
    private EntityManager ems;