Hi, I had the same problem. I checked the hibernate config for HistoryTask (jbpm.history.hbm.xml) and could not find an attribute called startTime. Additionally I could find a member of that name in the HistoryTask class. But I found a member and a mapping for CreateTime! After I changed the hql() method in HistoryTaskQueryImpl it worked: | if (startedBefore!=null) { | appendWhereClause(" ht.createTime < :startedBefore ", hql); | } | | if (startedAfter!=null) { | appendWhereClause(" ht.createTime > :startedAfter ", hql); | } | HTH Torsten View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4256496#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...