How to open an existing message (email) programmatically on BlackBerry

Question

I am trying to open an existing message from my application so that the native email client can display the content of said message, but I cannot find any way to do that. I have found a way to open a newly created message with

Invoke.invokeApplication(Invoke.APP_TYPE_MESSAGE,
       new MessageArguments (MessageArguments.ARG_NEW, "to", "subject", "body"));

But trying to open an existing message triggers an ObjectGroupReadOnlyException.

So, how can I do this? Any suggestions?