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Hibernate acessing table in schema other than dbo results with Schema-validation: missing table

I have a datasource that has two schemas: dbo and example.
I've created a table in dbo schema called A, and mapped it in hibernate:
#Entity
#Table(name = "A")
public class ATable {
private Integer id;
#Id
#Column(name = "id")
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
}
It runs without any errors as expected, I then proceeded to move the table to example schema with the following statement (runs successfully):
alter schema example transfer dbo.A
And changed the hibernate class as well:
#Entity
#Table(name = "A", schema = "example")
public class ATable {
private Integer id;
#Id
#Column(name = "id")
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
}
But upon running it, it throws the following exception, and exit the program.
INFO: HHH000262: Table not found: A
Exception in thread "main" org.hibernate.tool.schema.spi.SchemaManagementException: Schema-validation: missing table [A]
at org.hibernate.tool.schema.internal.SchemaValidatorImpl.validateTable(SchemaValidatorImpl.java:130)
at org.hibernate.tool.schema.internal.SchemaValidatorImpl.performValidation(SchemaValidatorImpl.java:100)
at org.hibernate.tool.schema.internal.SchemaValidatorImpl.doValidation(SchemaValidatorImpl.java:65)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:184)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:65)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:459)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:465)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:711)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:727)
at com.venditio.Application.main(Application.java:21)
I also tried using the following table annotation instead:
#Table(name = "example.A")
But it throws somewhat the same exception:
INFO: HHH000262: Table not found: example.A
Sep 22, 2017 3:53:36 PM org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl processGetTableResults
INFO: HHH000262: Table not found: example.A
Exception in thread "main" org.hibernate.tool.schema.spi.SchemaManagementException: Schema-validation: missing table [example.A]
at org.hibernate.tool.schema.internal.SchemaValidatorImpl.validateTable(SchemaValidatorImpl.java:130)
at org.hibernate.tool.schema.internal.SchemaValidatorImpl.performValidation(SchemaValidatorImpl.java:100)
at org.hibernate.tool.schema.internal.SchemaValidatorImpl.doValidation(SchemaValidatorImpl.java:65)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:184)
at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:65)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:459)
at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:465)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:711)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:727)
at com.venditio.Application.main(Application.java:21)
It seems that I need to somehow configure hibernate to support the extra schema, but don't understand how.
Application:
public class Application {
private static SessionFactory sessionFactory;
public static void main(String[] args) {
Configuration configuration = new Configuration().configure();
sessionFactory = configuration.buildSessionFactory();
sessionFactory.openSession().close();
}
}
And hibernate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!--MSSQL-->
<property name="hibernate.connection.url">jdbc:jtds:sqlserver://localhost:1433/d1</property>
<property name="connection.driver_class">net.sourceforge.jtds.jdbc.Driver</property>
<property name="hibernate.connection.username">a</property>
<property name="hibernate.connection.password">1</property>
<property name="dialect">org.hibernate.dialect.SQLServerDialect</property>
<!--Global-->
<property name="hibernate.connection.pool_size">10</property>
<property name="show_sql">true</property>
<property name="hibernate.hbm2ddl.auto">validate</property>
<property name="hibernate.current_session_context_class">thread</property>
<mapping class="com.a.A" />
</session-factory>
</hibernate-configuration>

Turns out, removing the following line from hibernate.cfg.xml did the trick
<property name="hibernate.hbm2ddl.auto">validate</property>

Hibernate AnnotationException Thrown when SessionFactory is Created

I am having a problem with hibernate. I am updating a previously created database created in Oracle SQL in order to get some practice with hibernate. The thing is that I am getting an AnnotationException that one class object is trying to reference something from the other class. Here is the error:
org.hibernate.AnnotationException: #OneToOne or #ManyToOne on com.revature.bank.POJO.BankAccount.customer references an unknown entity: com.revature.bank.POJO.Customer
at org.hibernate.cfg.ToOneFkSecondPass.doSecondPass(ToOneFkSecondPass.java:107)
at org.hibernate.cfg.Configuration.processEndOfQueue(Configuration.java:1580)
at org.hibernate.cfg.Configuration.processFkSecondPassInOrder(Configuration.java:1503)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1419)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1856)
at com.revature.bank.POJO.DataFuncImp.createCustomer(DataFuncImp.java:16)
at com.revature.bank.POJO.Main.main(Main.java:9)
So, this is pointing to the line:
SessionFactory sf = new Configuration().configure().buildSessionFactory();
I have read that it might be happening because the annotations but none of the previously asked questions here seemed to work.
Here are my two classes: (i will only put the variables as that's where the error points to):
Customer.java
#Entity
#Table(name="USER_TABLE")
public class Customer {
#Id
#GeneratedValue
private int user_id;
#Column
private String user_fname;
#Column
private String user_lname;
#Column
private String user_email;
#Column
private String user_address;
#Column
private String user_city;
#Column
private String user_state;
#Column
private long cell_num;
#OneToMany(cascade= {CascadeType.ALL}, mappedBy="customer")
#JoinColumn(name="user_id")
private List<BankAccount> bacct;
BankAccount.java
#Entity
#Table(name="USER_ACCOUNT")
public class BankAccount {
#Id
#GeneratedValue
private long acct_id;
#Column
private double balance;
#ManyToOne
#JoinColumn(name="user_id")
private Customer customer;
And here is my hibernate config file as well(edited out the database connection info):
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:#localhost:1521:xe</property>
<property name="hibernate.connection.username">adminone</property>
<property name="hibernate.connection.password">adminpass</property>
<property name="hibernate.dialect">org.hibernate.dialect.Oracle11gDialect</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<!-- <property name="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</property> -->
<!-- <mapping resource="students.hbm.xml"></mapping> -->
<mapping class="com.revature.bank.POJO.Customer"></mapping>
<mapping class="com.revature.bank.POJO.BankAccount"></mapping>
</session-factory>
</hibernate-configuration>
I am using hibernate 3.0. Like i mentioned earlier, i have been trying to figure out the error but none of the online help seemed to fix it. As you can see, I'm not even trying to do anything to the database yet and it is throwing that exception. Any idea on why is this happening? Thank you in advance!!

You shouldn't have JoinColumn on both sides. Just on the owner side, so remove it from the Customer class.
Customer.java:
#OneToMany(cascade= {CascadeType.ALL}, mappedBy="customer")
private List<BankAccount> bacct;
BankAccount.java:
#ManyToOne
#JoinColumn(name="user_id")
private Customer customer;

Hibernate Table doesn't exist error

I really need your help.
I'm new t hibernate. Trying to save an object but all the time i'm getting error:
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'hibernate.person' doesn't exist
Here is domain object:
#Table(name = "Person")
#Entity
public class Person {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private String id;
#Column(name = "Person_age")
private int age;
#Column(name = "Person_name")
private String name;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Here is my hibernate config file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property>
<property name="connection.username">root</property>
<property name="connection.password">******</property>
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<!-- Show all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<!-- Mapping files -->
<mapping class="ua.macko.domain.Person" />
</session-factory>
</hibernate-configuration>
The error i am getting is: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'hibernate.person' doesn't exist.
I was trying to set hbm2ddl.auto parameter to create and to update but that gave me no result.
Please tell me what am i doing wrong?
Thnx in advance

After adding javassist library the issue has been solved. Thanks to all for help!

<property name="hbm2ddl.auto">create</property>
Is wrong for hibernate.cfg.xml, use
<property name="hibernate.hbm2ddl.auto">create</property>
instead.

Is it necessary to use AnnotationConfiguration for Hibernate Configuration?

I want to use Configuration() methot. But I get this error:
Initial SessionFactory creation failed.org.hibernate.MappingException: An AnnotationConfiguration instance is required to use <mapping class="com.example.domain.Lesson"/>
If I use AnnotationConfiguratin() method, Hibernate can read my classes. I don't understand this:
Why when I use Configuration method, Hibernate can't see <mapping class="com.example.Lesson"/> definition?
My hibernate.cfg.xml file :
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.password">****</property>
<property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/DB</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<mapping resource="com.example/Lesson.hbm.xml" />
<mapping class="com.example.Lesson"/>
</session-factory>
</hibernate-configuration>
My Lesson class :
public class Lesson implements java.io.Serializable {
private int id;
private String lesson;
private Set lessons = new HashSet(0);
public Lesson() {
}
public Lesson(int id, String lesson, Set lessons) {
this.id = id;
this.id = id;
this.lessons = lessons;
}
continue..
}
I had bhm.xml files from reverse engineering. So, I don't want to use Annotation.
Any idea?

Just remove <mapping class="com.example.Lesson"/> from hibernate.cfg.xml. It is not necessary because Lesson.hbm.xml is present.

how to connect to MySql with Hbernate using Eclipse

I'm new to the hibernate and eclipse. I successfully did it with Derby by watching a youtube video. Now I want to do it with MySql.
I was successful to connect MySQL to eclips
Next i wrote simple persistant class person
import javax.persistence.Entity;
import javax.persistence.Id;
#Entity
public class Person {
private String name;
private int id;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
#Id
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
Next I wrote a test class for that
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
public class PersonTest {
/**
* #param args
*/
public static void main(String[] args) {
AnnotationConfiguration cfg = new AnnotationConfiguration();
cfg.addAnnotatedClass(Person.class);
cfg.configure("hibernate.cfg.xml");
new SchemaExport(cfg).create(true, true);
SessionFactory factory = cfg.buildSessionFactory();
Session session = factory.getCurrentSession();
session.beginTransaction();
Person person = new Person();
person.setName("Alex");
person.setId(1);
session.save(cfg);
session.getTransaction().commit();
}
}
My Hibernate configuration file
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/ruwaKuppi</property>
<property name="connection.username">root</property>
<property name="connection.password">1234</property>
<property name="hibernate.default_schema">ruwaKuppi</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">2</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping resource="person.hbm.xml"/>
</session-factory>
</hibernate-configuration>
My Mapping file
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="Person" table="PERSON">
<id name="id" type="int" column="ID" >
<generator class="assigned"/>
</id>
<property name="name">
<column name="NAME" />
</property>
</class>
</hibernate-mapping>
Now I'm getting this error....
![enter image description here][2]
13:13:17,795 INFO Version:15 - Hibernate Annotations 3.4.0.GA
13:13:17,818 INFO Environment:560 - Hibernate 3.3.2.GA
13:13:17,821 INFO Environment:593 - hibernate.properties not found
13:13:17,825 INFO Environment:771 - Bytecode provider name : javassist
13:13:17,830 INFO Environment:652 - using JDK 1.4 java.sql.Timestamp handling
13:13:17,927 INFO Version:14 - Hibernate Commons Annotations 3.1.0.GA
13:13:17,949 INFO Configuration:1474 - configuring from resource: hibernate.cfg.xml
13:13:17,950 INFO Configuration:1451 - Configuration resource: hibernate.cfg.xml
13:13:18,059 INFO Configuration:600 - Reading mappings from resource : person.hbm.xml
13:13:18,147 INFO Configuration:1589 - Configured SessionFactory: null
13:13:18,173 INFO Dialect:175 - Using dialect: org.hibernate.dialect.MySQLDialect
13:13:18,307 INFO HbmBinder:322 - Mapping class: Person -> PERSON
13:13:18,326 INFO AnnotationBinder:419 - Binding entity from annotated class: Person
13:13:18,364 INFO Mappings:161 - duplicate import: Person->Person
13:13:18,367 INFO EntityBinder:422 - Bind entity Person on table Person
Exception in thread "main" org.hibernate.DuplicateMappingException: Duplicate class/entity mapping Person
at org.hibernate.cfg.Mappings.addClass(Mappings.java:141)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:789)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:546)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:291)
at org.hibernate.cfg.Configuration.generateDropSchemaScript(Configuration.java:803)
at org.hibernate.tool.hbm2ddl.SchemaExport.(SchemaExport.java:128)
at org.hibernate.tool.hbm2ddl.SchemaExport.(SchemaExport.java:91)
at PersonTest.main(PersonTest.java:18)
Please can any one help me to get out from this mess... Thank you very much for your concern..
p.s :I know that last code is not clear....I think this is the important line of above
13:13:18,367 INFO EntityBinder:422 - Bind entity Person on table Person
Exception in thread "main" org.hibernate.DuplicateMappingException: Duplicate class/entity mapping Person
at org.hibernate.cfg.Mappings.addClass(Mappings.java:141)

You tell Hibernate to load the mapping from the hibernate.cfg.xml file:
cfg.configure("hibernate.cfg.xml");
But you also tell it to add the Person class as a mapped-trough annotations entity:
cfg.addAnnotatedClass(Person.class);
Decide if you want to map the Person entity using annotations or using XML. If you choose XML, then remove the cfg.addAnnotatedClass(Person.class); line. If you choose annotations, then remove the <class name="Person" table="PERSON"> (and all its sub-elements of course) from the XML file.

person class file
#Entity public class Person {
private String name;
#Id
private int id;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
test class
public class PersonTest {
/**
* #param args
*/
public static void main(String[] args) {
Person person = new Person();
person.setName("Alex");
person.setId(1);
SessionFactory factory = Configuration().configure().buildSessionFactory();
Session session = factory.openSession();
session.beginTransaction();
session.save(person);
session.getTransaction().commit();
}
}
hibernate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/ruwaKuppi</property>
<property name="connection.username">root</property>
<property name="connection.password">1234</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create</property>
<!-- Names the annotated entity class -->
<mapping class="Put your package name and class name here"/>
</session-factory>
</hibernate-configuration>
no need to add mapping file
make sure your hibernate jars are included with jdbc jar.
include jar from lib-bytecode-javassist,
jpa and required.
check hibernate.cfg.xml file,itshould include in src folder

Remove annotation '#id' from getter of id of Person class