I would guess that means that no recognizers are installed. Did you install any? I fairly certain that JavaSpeech does not come with any recognizers - it's just an API, but with no implementation.
Last time I looked (which was a while ago, and I didn't look very hard) I didn't notice any freely available speech recognition engines for JavaSpeech. (There's a free synthesis engine called FreeTTS on SourceForge, though.)
Morning came much too soon and it brought along a friend named Margarita Hangover, and a tiny ad.
a bit of art, as a gift, the permaculture playing cards