property "com.sun.CORBA.MaxStreamFormatVersion" is not exposed as
ORB's property but exposed only as -D parameter

 Their ValueHandler does System.getProperty() and sets it as "2" if
there is no property defined in system.

            String propValue = (String) AccessController.doPrivileged(
                                        new PrivilegedAction() {
                public java.lang.Object run() {
                    return
System.getProperty(ValueHandlerImpl.FORMAT_VERSION_PROPERTY);
                }
            });

             // The property wasn't set
             if (propValue == null)
                 return MAX_SUPPORTED_FORMAT_VERSION; // this is (byte)2;