Hi, I have a strange error. When I get my final roster, I do: System.out.println(final_roster.getShiftAssignmentList()); I get a list of all the employees (with their names) assigned to a certain shift on a certain date. Now I would like to iterate over this list to save it to my database, so I do the following to test: for (ShiftAssignment shiftAssignment : roster.getShiftAssignmentList()) { System.out.println("Shift assignment: " + shiftAssignment.getEmployee() + " - " + shiftAssignment.getShiftDate() + " - " + shiftAssignment.getShift().getLabel()); } But now the shiftAssignment.getEmployee() returns null. How can this happen? Thanks -- View this message in context: http://drools.46999.n3.nabble.com/Optaplanner-ShiftAssignment-Employee-is... Sent from the Drools: User forum mailing list archive at Nabble.com.