HistoryComment exposes the method getUserId() ... which has the corresponding DB column of USERID_ in the jbpm4_hist_detail table. But there is no way (that I can see) of actually setting the user id of a comment. The TaskService only exposes the following: addTaskComment(java.lang.String taskId, java.lang.String message) ... with no sign of a user id! Is this an oversight with the API ... or is it an oversight on my ability to read the Javadocs? Etienne View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4267184#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...