Not getting a password when starting Java application with -debug option

Question

I want to attach jdb to an already running Java VM, so when I start the program I want to debug, I start it like so on host computer myHost:

java -debug myProgram

And I'm supposed to get a password myPassword I can use jdb like so:

jdb -host myHost -password myPassword

But I don't see any password after I type the first line above. Anybody know what I'm doing wrong? Thanks.