why TTY doesn't work?

i am learning jdb (very new), when i compile and execute example of TTY, error says "handle is not available".

i use windows. i think i miss something because TTy code tries to load a file in user directory, but i don't have the file - if this is reason, what is content of the file?

thanks for all.

[319 byte] By [sameida] at [2007-9-29 13:36:01]