Installation error in the password of the j2eadm password

Hi.

I´m installing SAP Web Application Server Java 6.40 SP11 and get this message and i can´t continue with the installation.

ERROR 2005-08-17 20:25:38

The password you entered for user JCRUZj2eadm is too short.

The minimum acceptable length is 8 characters.

this user doesn´t exists in my machine users

Can help me ?