SerializationException « Data Type « JPA Q&A

1. SerializationException: could not deserialize

Hi, I've got an entity class which contains a java.util.UUID. Since my database is MySQL and it does not support the UUID type I have explicitly declared the column definition to be a varchar(36). My code looks like the following: Code: @Entity @Table(name = "my_table") public class MyClass { private UUID uuid; @Column(columnDefinition ...

2. SerializationException: could not deserialize

I got the following exception (Hibernate 3.5.6): org.hibernate.type.SerializationException: could not deserialize at org.hibernate.util.SerializationHelper.doDeserialize( at org.hibernate.util.SerializationHelper.deserialize( .... Caused by: invalid stream header: 35353530 at at at org.hibernate.util.SerializationHelper$CustomObjectInputStream.( at org.hibernate.util.SerializationHelper$CustomObjectInputStream.( at org.hibernate.util.SerializationHelper.doDeserialize( ... Code: @Entity @Table(name="problem") public class Problem implements Serializable, Cloneable { private Set screenMetaproperties = new HashSet(); @OneToMany(cascade=CascadeType.ALL,orphanRemoval=true,mappedBy="id.problem") ...

3. SerializationException: could not deserialize

I'm very new to Hibernate, so please forgive me if this is an elementary problem (I actually kind of hope it is). I have a table called RES_RESOURCE with 4 records stored in a MySQL database. RES_RESOURCE has 2 foreign keys, RES_INL_CODE, RES_INC_CODE . My XML mapping file for RES_RESOURCE is as follows:

4. getting SerializationException: could not deserialize

I am getting following error though my IData and other objects are Serializable. Hibernate version: 2.1 Mapping documents:

5. SerializationException: could not deserialize

Hi, I added a unique constraint over two non-key columns and I am getting a nasty error while retrieving from the DB (insert worked ok). I really don't know where to start. I've searched the forums but could not find anything similar. Once I remove the unique constraint, I can read from the DB. thank you, Martn 3.0: Mapping documents: Code: ...

6. SerializationException could not deserialize

Newbie Joined: Sun Jul 24, 2005 7:01 pm Posts: 3 I don't even know how to start debugging this. Thanks in advance. Hibernate version: 3 Mapping documents: Code:

7. SerializationException: could not deserialize

Beginner Joined: Thu Apr 20, 2006 11:51 am Posts: 44 Hello this is my validator rule. I verify that the email insert by an user is still present in the database. Code: public static boolean emailPresent (Object bean, ValidatorAction va, Field field, ActionMessages errors, Validator validator, HttpServletRequest request) { ...