Guys, we were able to solve this problem. If you have a look at the JBoss Manual (chapter 9), you will see that the hashes from jboss are Base64-Encoded. The hashes I used were Hex-Encoded, so as you can see, that doesn't fit together. How can you now change them to Base64-Encoding? Make a short database-script with the following code: ------ | set sqlblanklines on; | set serveroutput on; | | DECLARE | | BEGIN | -- read password field as hex-encoded raw data and convert data using base64 encoding | update users set password=utl_raw.cast_to_varchar2(utl_encode.base64_encode(utl_raw.cast_to_raw(utl_raw.cast_to_varchar2(password)))); | END; | ------ | After this, you should be able to login. Hope that helps. Maybe there is anyone out there how thinks this is useful. Best regards! View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4265785#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...