Folks,
I've continued to work on the problem (stubbornness + free time is a deadly combination) and have gotten a solution others might find helpful. In Java 1.5 (5.0 per their new numbering) there is a new ProcessBuilder class. It is a different way to create a runtime process that allows setting environmental variables. Of particular interest is the redirectErrorStream() method, which does just that - combines stderr with stdin. This simplifies matters - allowing the use of just one BufferedReader and lo and behold - the Password: prompt showed up. You can't readLine() it, but nevertheless, it is accessible.
Later!
Michael Schmidt