in this function there is a hardcoded query string : List<ProcessInstanceLog> result = getEntityManager().createQuery( "from ProcessInstanceLog as log where log.processInstanceId = ? and log.end is null") .setParameter(1, processInstanceId).getResultList(); it gives the following error: <openjpa-2.0.1-r422266:989424 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: "Encountered "from" at character 1, but expected: ["DELETE", "SELECT", "UPDATE"]." while parsing JPQL "from ProcessInstanceLog as log where log.processInstanceId = ? and log.end is null". See nested stack trace for original parse error. This should be a named query and put in orm.xml. Thanks! juergen -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/JPAWorkingMemoryDbLog... Sent from the Drools - Dev mailing list archive at Nabble.com.