import HelloApp.*;import org.omg.CosNaming.*;import org.omg.CosNaming.NamingContextPackage.*;import org.omg.CORBA.*;import org.omg.PortableServer.*;import org.omg.PortableServer.POA;import java.util.Properties;class HelloImpl extends HelloPOA{  private ORB orb;  public void setORB(ORB orb_val){    orb = orb_val;  }    public String sayHello(){    return "\nHello world !!\n";  }    public void shutdown(){    orb.shutdown(false);  }}public class HelloServer{  public static void main(String args[]){    try{      // create and initialize the ORB      ORB orb = ORB.init(args, null);      // Get reference to rootpoa & activate the POAManager      POA rootpoa = POAHelper.narrow(orb.resolve_initial_references("RootPOA"));      rootpoa.the_POAManager().activate();      // create servant and register it with the ORB      HelloImpl helloImpl = new HelloImpl();      helloImpl.setORB(orb);       // create a tie, with servant being the delegate.      HelloPOATie tie = new HelloPOATie(helloImpl, rootpoa);      // obtain the objectRef for the tie      // this step also implicitly activates the       // the object      Hello href = tie._this(orb);	          // get the root naming context      org.omg.CORBA.Object objRef = orb.resolve_initial_references("NameService");            // Use NamingContextExt which is part of the Interoperable      // Naming Service specification.      NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);      // bind the Object Reference in Naming      String name = "Hello";      NameComponent path[] = ncRef.to_name( name );      ncRef.rebind(path, href);      System.out.println("HelloServer ready and waiting ...");      // wait for invocations from clients      orb.run();      }           catch (Exception e){      System.err.println("ERROR: " + e);      e.printStackTrace(System.out);    }        System.out.println("HelloServer Exiting ...");	  }}