Can't find the storageproxy using jconsole

[Mingfan Lu]

I am using Jconsole to access JMX and find out that I can't find
storageproxy under mbean tab while I can get information of
storageservice.
It is very interesting that I find the storageproxy has been
registered in source code.

private StorageProxy() {}
    static
    {
        MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
        try
        {
            mbs.registerMBean(new StorageProxy(), new
ObjectName("org.apache.cassandra.service:type=StorageProxy"));
        }
        catch (Exception e)
        {
            throw new RuntimeException(e);
        }
   }

my cassandra is 0.6.3