mjhjmtu

I want to manage different cloud resources using opennebula API.
For that i installed opennebula sandbox based Centos 7 on a virtualbox.
I
when i tried to execute my class in the eclipse IDE that allocate a simple virtual machine, i failed:
this is the code:

package org.opennebula;

import org.opennebula.client.Client;

import org.opennebula.client.OneResponse;

import org.opennebula.client.vm.VirtualMachine;

public class Alloue

public static void main(String args)
Client oneClient;

try

 String one_auth="oneadmin:opennebula";
 String one_xmlrpc="http://localhost:2633/RPC2";

 oneClient=new Client(one_auth,one_xmlrpc);

 String vmTemplate =
 "NAME = vm_from_java CPU = 0.1 MEMORY = 64n";


 System.out.println("Virtual Machine Template:n" + vmTemplate);
 System.out.println();

 System.out.print("Trying to allocate the virtual machine... ");
 OneResponse rc = VirtualMachine.allocate(oneClient, vmTemplate);

 if( rc.isError() )
 
 System.out.println( "failed!");
 throw new Exception( rc.getErrorMessage() );
 

 else

 System.out.println("ok");



catch(Exception e) 

How can i resolve this problem ?
How can i manage openenbula-sandbox on virtualbox with opennebula API ?