Spring Data JPA; save() auto increment primary key error

hibernate, jpa, mysql, spring, spring-data-jpa

Solution

Found my problem: I was using int in my setter and getter for userId, instead of Integer.

Problem

I have a USER table with UserId as primary key, which is int and auto incremented in MySQL. ``` @Id @GeneratedValue @Column(name="USER_ID") private Integer userId; ``` When I run userRepository.save(user); I am getting an error saying: org.springframework.beans.InvalidPropertyException: Invalid property 'userId' of bean class [com.mysite.model.User]: Getter for property 'userId' threw exception; nested exception is java.lang.reflect.InvocationTargetException If I just hard coded the user id I don't get this error. What am I doing wrong? ``` // hard code it user.setUserId(5); userRepository.save(user); ```

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