A DESCRIPTION OF THE PROBLEM :
     @Entity
        public class ProgramManager {
        @Id int id;
        @OneToMany(mappedBy="jobInfo.pm")
        Collection<Employee> manages;
     }

should be
     @Entity
        public class ProgramManager {
        @Id int id;
        @OneToMany(mappedBy="jobInfo.pm")
        Collection<Employee> managers;
     }