[xwiki-devs] Multiselect DBList custom mapping

Hi Today I tried to create a custom mapping for a class. One field of the class is a DBList with the "Multiple Select" option activated. To save the values to the DB I wanted to use a string field like I'm used to with static lists and non multi select DB lists. Now I get the following exception when trying to save a Document with an object attached: "java.util.ArrayList cannot be cast to java.lang.String" How could I custom map a DBList field if String ist not possible? or is there even a simple Solution I missed? A hint in the right direction would be appreciated Edo