RMI server to judge the host name of client which called it

Question

I have the below program of Spring RMI in which the client send its port no which i s received at the Server end and is being displayed , I am using spring rmi to achieve that now i want is there any way since i want to remove the hard coding that is client would notsent it hostname now simply client would call the servre RMI server and RMI server should be smart enough to judge that the client host name , please advise f in the below program i stop passing the hostname from client side then how would be the server would be smart enough to judge the client hostname itself

calculation interface there should be a method that takes a String as a parameter.

public interface Calculation {  
void print(String text );  
void registerIpAddress(String ip);
} 

public class CalculationImpl implements Calculation {

@Override
void print(String text) {
    System.out.println(text);
}
    @Override
    void registerIpAddress(String ip){
            List.add(ip);//or whatever you want
}

your xml files for both client and host are right ApplicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd">

<bean id="calculationBean" class="com.javatpoint.CalculationImpl"></bean>
<bean class="org.springframework.remoting.rmi.RmiServiceExporter">
    <property name="service" ref="calculationBean"></property>
    <property name="serviceInterface" value="com.javatpoint.Calculation"></property>
    <property name="serviceName" value="CalculationService"></property>
    <property name="replaceExistingBinding" value="true"></property>
    <property name="registryPort" value="1099"></property>
</bean>
</beans>

client-beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd">

<bean id="calculationBean" class="org.springframework.remoting.rmi.RmiProxyFactoryBean">
<property name="serviceUrl" value="rmi://localhost:1099/CalculationService"></property>
<property name="serviceInterface" value="com.javatpoint.Calculation"></property>
</bean>
</beans>

create a new instance of applicaionContext in order for this to work

class server {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
    }
}

need to run your client

public static void main(String[] args) {
    ApplicationContext context = new ClassPathXmlApplicationContext("client-beans.xml");
    Calculation calculation = (Calculation) context.getBean("calculationBean");
    calculation.print("Copied&Pasted!");

    try {
        calculation.registerIpAddress(InetAddress.getLocalHost().getHostAddress());
    } catch (UnknownHostException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

upon googling i can see the method

public static String getClientHost()
                            throws ServerNotActiveException

now for this i need to extend remote server class can't i achieve same thing in spring rmi itself