3.15.2.1.1. Holder Class Example
public final class IntHolder
implements org.omg.CORBA.portable.Streamable
{
  public int value;

  public IntHolder () { }
  public IntHolder (int o) { value = o; }

  public TypeCode _type ()
  {
    return ORB.init ().get_primitive_tc (TCKind.tk_long);
  }

  public void _read (org.omg.CORBA.portable.InputStream in)
  {
    value = in.read_long ();
  }

  public void _write (org.omg.CORBA.portable.OutputStream out)
  {
    out.write_long (value);
  }
}