fixed intermittent null scheduler

Author: tamu-sad-iii

src/main/java/edu/tamu/app/model/AbstractScheduler.java

@@ -13,8 +13,6 @@
 
 import org.hibernate.annotations.Fetch;
 
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-
 import edu.tamu.framework.model.BaseEntity;
 
 import static javax.persistence.InheritanceType.JOINED;
@@ -24,9 +22,8 @@
 @Inheritance(strategy = JOINED)
 public abstract class AbstractScheduler extends BaseEntity implements Scheduler {
 
-    @OneToMany(fetch = EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
+    @OneToMany(fetch = EAGER, cascade = { CascadeType.ALL }, orphanRemoval = true)
     @Fetch(value = SELECT)
-    @JsonIgnoreProperties("scheduler")
     private List<Schedule> schedules;
 
     @Column(nullable = false)

src/main/java/edu/tamu/app/model/Schedule.java

@@ -28,18 +28,19 @@ public class Schedule extends BaseEntity {
     @Column(nullable = false)
     private Long scheduledPostingEnd;
 
-    @ManyToOne
+    @ManyToOne(optional = false)
     @JsonIgnoreProperties("schedules")
     private AbstractScheduler scheduler;
 
     @ElementCollection(fetch = FetchType.EAGER)
     @MapKeyColumn(name = "key")
     @Column(name = "value")
     @CollectionTable(name = "schedule_data", joinColumns = @JoinColumn(name = "schedule_id"))
-    private Map<String, String> scheduleData = new HashMap<String, String>();
+    private Map<String, String> scheduleData;
 
     public Schedule() {
         super();
+        setScheduleData(new HashMap<String, String>());
     }
 
     public Schedule(Long start, Long end) {