ASShutdown user/password not working

I try to use de.mendelson.comm.as2.AS2Shutdown
My Release is v1.1b59

Having the default paswd-File with this line

After calling
java de.mendelson.comm.as2.AS2Shutdown -user admin -password admin -user admin -password admin

I get this output

Connection established to localhost/
Remote server identified as mendelson opensource AS2 1.1 build 59
Login failed
Authentication failed: Wrong user/password combination or user does not exist

Where are the correct user settings?
Is the file "passwd" the wrong place?