Updates work but save throws java.lang.ClassCastException: java.lang.String incompatible

[Jay Abrahm]

I have a hibernate object

Class A {
@Id
@Column(name="ID")
private String id;
	
@Column(name="GLOBAL_KEY")
private Integer globalKey;
	
@Column(name="LOCAL_KEY")
private Integer localKey;

Updates work but saves throw an exception java.lang.ClassCastException: java.lang.String incompatible with com.project.test.A

[Vijitha Kumara]

Updates work but saves throw an exception...

How do you get it to save before the update anyway? Or you may need to tell more details about this scenario...

[Jay Abrahm]

I fixed this issue but it looks like a hack to me.. I used native SQL query to insert.

sb.append("INSERT INTO ...
query = sessionFactory.getCurrentSession().createSQLQuery(
query.executeUpdate();

Hey Vijitha, To test the update I manually inserted the values into the database and then did an update. It worked, so basically sessionFactory.getCurrentSession().update works but sessionFactory.getCurrentSession().save throws a class cast exception.

[Jay Abrahm]

I think it has something to do with the primary key. It fails for all the tables where I don't have a sequence number generator and I manually enter the primary key.