diff --git a/src/main/java/org/springframework/samples/petclinic/model/BaseEntity.java b/src/main/java/org/springframework/samples/petclinic/model/BaseEntity.java index 14603c1ff..0fcc0b8e0 100644 --- a/src/main/java/org/springframework/samples/petclinic/model/BaseEntity.java +++ b/src/main/java/org/springframework/samples/petclinic/model/BaseEntity.java @@ -15,6 +15,8 @@ */ package org.springframework.samples.petclinic.model; +import java.io.Serializable; + import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @@ -27,7 +29,7 @@ import javax.persistence.MappedSuperclass; * @author Juergen Hoeller */ @MappedSuperclass -public class BaseEntity { +public class BaseEntity implements Serializable { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) protected Integer id;