Cannot use @timestamp annotation on a java.sql.Timestamp field when declaring metadata for an existing Java type ---------------------------------------------------------------------------------------------------------------- Key: DROOLS-10 URL: https://issues.jboss.org/browse/DROOLS-10 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Reporter: Ken Warkentyne Assignee: Edson Tirelli Fix For: 6.0.0.Alpha1 We have a Java class that uses java.sql.Timestamp to record time values. In Drools 5.0.1, we were able to use the @timestamp annotation as follows: {code} declare StateEvent @role( event ) @timestamp( startTime ) @duration( duration ) end {code} StateEvent contains the following: {code} import java.sql.Timestamp; ... private Timestamp startTime; private Long duration; public Timestamp getStartTime() { return startTime; } public void setStartTime(Timestamp st) { startTime = st; } public Long getDuration() { return duration; } public void setDuration(Long d) { duration = d; } .... {code} We load the rules from a .drl file as follows: {code} KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kbuilder.add(ResourceFactory.newClassPathResource("path-to-file", ResourceType.DRL); {code} In 5.4.0, this no longer works and we get the error message: {code} Annotated type StateEvent - undefined property in @annotation timestamp: java.sql.Timestamp.value(); {code} Also tested with 5.5.0.Final and 5.5.0.CR1