Hibernate 4.3.0 Final和Spring 4.1

Question

Caused by: org.hibernate.type.SerializationException: could not deserialize
    at org.hibernate.internal.util.SerializationHelper.doDeserialize(SerializationHelper.java:262)
    at org.hibernate.internal.util.SerializationHelper.deserialize(SerializationHelper.java:306)
    at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.fromBytes(SerializableTypeDescriptor.java:155)
    at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.wrap(SerializableTypeDescriptor.java:130)
    at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.wrap(SerializableTypeDescriptor.java:44)
    at org.hibernate.type.descriptor.sql.VarbinaryTypeDescriptor$2.doExtract(VarbinaryTypeDescriptor.java:71)
    at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:64)
    at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:263)
    at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:259)
    at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:249)
    at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:334)
    at org.hibernate.loader.Loader.extractKeysFromResultSet(Loader.java:784)
    at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:720)
    at org.hibernate.loader.Loader.processResultSet(Loader.java:952)
    at org.hibernate.loader.Loader.doQuery(Loader.java:920)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:354)
    at org.hibernate.loader.Loader.doList(Loader.java:2551)
    at org.hibernate.loader.Loader.doList(Loader.java:2537)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2367)
    at org.hibernate.loader.Loader.list(Loader.java:2362)
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:496)
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387)
    at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:229)
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1260)
    at org.hibernate.internal.QueryImpl.list(QueryImpl.java:103)
    at org.springframework.orm.hibernate4.HibernateTemplate$29.doInHibernate(HibernateTemplate.java:875)
    at org.springframework.orm.hibernate4.HibernateTemplate$29.doInHibernate(HibernateTemplate.java:864)
    at org.springframework.orm.hibernate4.HibernateTemplate.doExecute(HibernateTemplate.java:340)
    ... 59 more
Caused by: java.io.EOFException
    at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2325)
    at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2794)
    at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:801)
    at java.io.ObjectInputStream.<init>(ObjectInputStream.java:299)
    at org.hibernate.internal.util.SerializationHelper$CustomObjectInputStream.<init>(SerializationHelper.java:328)
    at org.hibernate.internal.util.SerializationHelper$CustomObjectInputStream.<init>(SerializationHelper.java:318)
    at org.hibernate.internal.util.SerializationHelper.doDeserialize(SerializationHelper.java:237)
    ... 86 more

Geting the above exception.

Following is class.

@Entity
@Table(name = "USERS")
public class User implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "USER_ID", nullable = false)
    private Number userId;

    @Column(name = "USER_NAME", nullable = true)
    private String userName;

    @ManyToOne
    @JoinColumn(name="CLIENT_ID", unique=false, nullable=true, insertable=true, updatable=true)
    private Client client;

    @Column(name = "PASSWORD", nullable = true)
    private String password;

    @Column(name = "PASSWORD_CREATION_DATE", nullable = false)
    private Timestamp passwordCreationDate;

    @Column(name = "SALT", nullable = true)
    private String salt;

    @Column(name = "ADDRESS_ID", nullable = false)
    private Number addressId;

    @Column(name = "FIRST_NAME", nullable = true)
    private String firstName;

    @Column(name = "LAST_NAME", nullable = true)
    private String lastName;

    @Column(name = "EMAIL" , nullable = true)
    private String email;

    @Column(name = "IS_MADE_UP_USER_NAME"  , nullable = true)
    private boolean isMadeUpUserName;

    @Column(name = "CELL_PHONE" , nullable = true)
    private Number cellPhone;

    @Column(name = "LAST4SSN"  , nullable = true)
    private String last4SSN;

    @Column(name = "LOCKED" , nullable = false)
    private boolean locked;

    @Column(name = "FAILED_LOGIN_COUNT" , nullable = true)
    private Integer failedLoginCount;

    @Column(name = "DATE_CREATED" , nullable = false)
    private Timestamp dateCreated;

    @Column(name = "DATE_MODIFIED" , nullable = true)
    private Timestamp dateModified;

    @Column(name = "CREATED_BY_ID" , nullable = true)
    private Number createdBy;

    @Column(name = "MODIFIED_BY_ID" , nullable = true)
    private Number modifiedBy;

    @Column(name = "TIME_ZONE" , nullable = true)
    private String timeZone;

    @Column(name = "LANGUAGE"  , nullable = true)
    private String language;

    @Column(name = "USER_ENTERED_TEL"  , nullable = true)
    private Number userEnteredTel;

    @Column(name = "DO_NOT_NOTIFY"  , nullable = true)
    private boolean doNotNotify;
    enter code here
    @Column(name = "DISABLED"  , nullable = true)
    private boolean disabled;

    @Column(name = "TERMS_CONFIRMED" , nullable = true)
    private boolean termsConfirmed;

I don't know were am i wrong,please help me to solve the above. getting deserialization exception.Due to this desialixation its causing eof exception too.the error in the above class.

following is table structure

 `user_id` int(11) NOT NULL AUTO_INCREMENT,
  `user_name` varchar(50) CHARACTER SET utf8 DEFAULT NULL,
  `Password` varchar(256) DEFAULT NULL,
  `password_creation_date` datetime DEFAULT NULL,
  `salt` varchar(50) DEFAULT NULL,
  `address_id` decimal(10,0) NOT NULL,
  `client_id` int(11) DEFAULT NULL,
  `first_name` varchar(100) DEFAULT NULL,
  `last_name` varchar(100) DEFAULT NULL,
  `email` varchar(100) DEFAULT NULL,
  `is_made_up_user_name` tinyint(1) DEFAULT '0',
  `cell_phone` decimal(10,0) DEFAULT NULL,
  `dob` varchar(45) DEFAULT NULL,
  `last4ssn` varchar(45) DEFAULT NULL,
  `locked` tinyint(1) NOT NULL,
  `disabled` tinyint(1) DEFAULT '0',
  `failed_login_count` int(11) DEFAULT NULL,
  `date_created` date NOT NULL,
  `date_modified` date DEFAULT NULL,
  `created_by_id` decimal(10,0) DEFAULT NULL,
  `modified_by_id` decimal(10,0) DEFAULT NULL,
  `time_zone` varchar(256) DEFAULT NULL,
  `language` varchar(256) DEFAULT NULL,
  `user_entered_tel` decimal(10,0) DEFAULT NULL,
  `do_not_notify` tinyint(1) DEFAULT '1',
  `terms_confirmed` tinyint(1) DEFAULT '0',
  PRIMARY KEY (`user_id`),
  UNIQUE KEY `user_name` (`user_name`),
  KEY `client_id` (`client_id`),
  CONSTRAINT `USERS_ibfk_1` FOREIGN KEY (`client_id`)
                            REFERENCES `client` (`client_id`)

Answer 1

1. write a (j)unit test for it, eg just loading this class via some (maybe self-injected EntityManager )

2. comment out critical parts that could lead to this, eg any entity reference:

    //@ManyToOne //@JoinColumn(name="CLIENT_ID", unique=false, nullable=true, insertable=true, // updatable=true) //private Client client; 

   • and dependent methods inside
3. run the simple JPA bean, which should likely be fine

4. now check your 'Client' class, that it does not reference any other entity and comment in the above with the most basic settings , eg

    @ManyToOne @JoinColumn(name="CLIENT_ID") private Client client; 

5. now you should get closer to the declarations that cause the trouble

You should also enable hibernate sql logging and parameter logging to see whats going on underneath.

I got a the same error on a similar setup and it was caused by a wrong modeling/fiddling with the annotations and relationships where this source helped me out: http://levelup.lishman.com/hibernate/associations/many-to-one.php