Allows the ORB to pass the stream format
version for RMI/IDL custom value types. If the ORB
calls this method, it must pass a stream format version
between 1 and the value returned by the
getMaximumStreamFormatVersion method inclusive,
or else a BAD_PARAM exception with standard minor code
will be thrown.
If the ORB calls the older ValueHandler.writeValue(OutputStream,
Serializable) method, stream format version 1 is implied.
The ORB output stream passed to the ValueHandlerMultiFormat.writeValue
method must implement the ValueOutputStream interface, and the
ORB input stream passed to the ValueHandler.readValue method must
implement the ValueInputStream interface.