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Hibernate SQLite: Cannot get a connection as the driver manager is not properly initialized

I try to make use a Database system without have to run a separate database program.
I decided to use Hibernate SQLite. And I'm getting desperate here.
can someone pls tell me what i am doing whrong, or where i can find more help? I Faild with google, and ChatGPT was as always not helpfull to.
And for every one how try to convince me to use for example MariaDB, no. I need it to be one java application. Not more, not less...
src\main\resources\hibernate.cfg.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!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>
<!-- <property name="hibernate.connection.url">jdbc:sqlite:path/to/your/database.db</property> -->
<property name="hibernate.connection.driver_class">org.sqlite.JDBC</property>
<property name="hibernate.connection.url">jdbc:sqlite:database.db</property>
<property name="hibernate.dialect">org.hibernate.dialect.SQLiteDialect</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.hbm2ddl.auto">create</property>
<mapping class="de.minetrain.kekbot.database.test.Person"/>
</session-factory>
</hibernate-configuration>
src\main\resources\persistence.xml:
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd" version="2.2">
<persistence-unit name="my-persistence-unit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<class>de.minetrain.kekbot.database.test.Person</class>
<!-- <class>com.example.MyOtherEntity</class> -->
<properties>
<property name="hibernate.connection.driver_class" value="org.sqlite.JDBC" />
<!-- <property name="hibernate.connection.url" value="jdbc:sqlite:path/to/your/database.db" /> -->
<property name="hibernate.connection.url" value="jdbc:sqlite:database.db" />
<property name="hibernate.connection.username" value="" />
<property name="hibernate.connection.password" value="" />
<property name="hibernate.dialect" value="org.hibernate.dialect.SQLiteDialect" />
<property name="hibernate.hbm2ddl.auto" value="update" />
<!-- <property name="hibernate.show_sql" value="true" /> -->
</properties>
</persistence-unit>
</persistence>
pom.xml
</ependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.6.1.Final</version>
</dependency>
<dependency>
<groupId>org.xerial</groupId>
<artifactId>sqlite-jdbc</artifactId>
<version>3.34.0</version>
</dependency>
</dependencies>
HibernateUtil class:
package de.minetrain.kekbot.database.test;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HibernateUtil {
private static final Logger logger = LoggerFactory.getLogger(HibernateUtil.class);
private static final SessionFactory sessionFactory = buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
Class.forName("org.sqlite.JDBC");
} catch (ClassNotFoundException e) {
logger.error("Dant find class: ",e);
}
try {
Configuration configuration = new Configuration().configure("hibernate.cfg.xml"); // may wrong?
StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
return configuration.buildSessionFactory(builder.build());
} catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}
Entity class:
package de.minetrain.kekbot.database.test;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
#Entity
public class Person {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
private String name;
private int age;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
And the class i try to whrite into the database:
package de.minetrain.kekbot.database.test;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
public class Database {
public static void test(){
SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
Session session = sessionFactory.openSession();
// Verwenden Sie die Session, um Datenbankoperationen auszuführen
// session.close();
Transaction tx = null;
try {
tx = session.beginTransaction();
Person person = new Person();
person.setName("Max Mustermann");
person.setAge(30);
session.save(person);
tx.commit();
} catch (HibernateException ex) {
if (tx != null) {
tx.rollback();
}
ex.printStackTrace();
} finally {
session.close();
}
}
}
I just wanna lern to use SQLite, and try to Whrite a new person object into a database file.
Errors:
[20:00:15] >> WARN << [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator] - HHH000342: Could not obtain connection to query metadata java.lang.IllegalStateException: Cannot get a connection as the driver manager is not properly initialized
Initial SessionFactory creation failed.org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [org.hibernate.dialect.SQLiteDialect] as strategy [org.hibernate.dialect.Dialect]
Caused by: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [org.hibernate.dialect.SQLiteDialect]
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.hibernate.dialect.SQLiteDialect
I've managed to change the Exeptions. With the help from #andrewJames I found out, that I have to use a dialect, which I didn't know. I also noticed that I am using old versions of Hibernate and co.
And sorry in advance, for every experienced coder how gets headaches from my stupidity. I am not new to coding, but I am very new to databases and dealing with dependency's outside from just API package things. I tried to google as much as I could find, and testing every thing I could. But I ended up having to ask again. I am very sorry.
Iive changed stuff around and now have this pom.xml:
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>6.1.6.Final</version>
</dependency>
<dependency>
<groupId>org.xerial</groupId>
<artifactId>sqlite-jdbc</artifactId>
<version>3.40.0.0</version>
</dependency>
<dependency>
<groupId>com.github.gwenn</groupId>
<artifactId>sqlite-dialect</artifactId>
<version>0.1.2</version>
</dependency>
I've changed the dialect in the hibernate.cfg.xml:
<property name="hibernate.dialect">org.sqlite.hibernate.dialect.SQLiteDialect</property>
persistence.xml:
<property name="hibernate.dialect" value="org.sqlite.hibernate.dialect.SQLiteDialect" />
However, now I get the benefit of dealing with this exception:
[00:07:48] >> INFO << [org.hibernate.Version] - HHH000412: Hibernate ORM core version 6.1.6.Final
Initial SessionFactory creation failed.java.util.ServiceConfigurationError: org.hibernate.boot.spi.MetadataBuilderInitializer: Provider org.sqlite.hibernate.dialect.SQLiteMetadataBuilderInitializer could not be instantiated
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: java.util.ServiceConfigurationError: org.hibernate.boot.spi.MetadataBuilderInitializer: Provider org.sqlite.hibernate.dialect.SQLiteMetadataBuilderInitializer could not be instantiated
Caused by: java.lang.NoClassDefFoundError: org/hibernate/dialect/function/SQLFunction
Caused by: java.lang.ClassNotFoundException: org.hibernate.dialect.function.SQLFunction

ERROR: HHH000346: Caused by org.hibernate.exception.ConstraintViolationException and java.sql.SQLIntegrityConstraintViolationException

I am learning Hibernate as a beginner,I am working with maven + hibernate + oracle11g
I am receiving error when i run the following code
Here is the code which i am working on :
Pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.wipro.HibernateDemp</groupId>
<artifactId>HibernateDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>HibernateDemo</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.3.0.1</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>com.sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.20.0-GA</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.11.Final</version>
<type>pom</type>
</dependency>
<!-- https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-impl -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.oracle.database.jdbc/ojdbc6 -->
<dependency>
<groupId>com.oracle.database.jdbc</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.4</version>
</dependency>
</dependencies>
</project>
Department.java
package com.hibernate.bean;
import org.hibernate.Hibernate;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class Department
{
private int depno;
private String depName;
private int locationid;
private int managerid;
public Department() {
}
public Department(int depno, String depName, int locationid, int managerid) {
super();
this.depno = depno;
this.depName = depName;
this.locationid = locationid;
this.managerid = managerid;
}
public int getDepno() {
return depno;
}
public void setDepno(int depno) {
this.depno = depno;
}
public String getDepName() {
return depName;
}
public void setDepName(String depName) {
this.depName = depName;
}
public int getLocationid() {
return locationid;
}
public void setLocationid(int locationid) {
this.locationid = locationid;
}
public int getManagerid() {
return managerid;
}
public void setManagerid(int managerid) {
this.managerid = managerid;
}
#Override
public String toString() {
return "Department [depno=" + depno + ", depName=" + depName + ", locationid=" + locationid + ", managerid="
+ managerid + "]";
}
}
DepartmentAdmin.java
package com.wipro.services;
import javax.transaction.Transaction;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import com.hibernate.bean.Department;
public class DepartmentAdmin {
public static void main(String args[]) {
Configuration cfg = new Configuration().configure();
SessionFactory sf = cfg.buildSessionFactory();
Session session =sf.openSession();
org.hibernate.Transaction transaction = session.beginTransaction();
Department deptobj = new Department(280,"CSE", 116,1830);
session.save(deptobj);
transaction.commit();
System.out.println("Record inserted");
System.out.println(deptobj);
session.close();
}
}
department.hbm.xml
<?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="com.wipro.bean.Department" table="Departments">
<id name="depno" column="DEPARTMENT_ID" type="int">
<generator class="assigned"></generator>
</id>
<property name="depName" column="DEPARTMENT_NAME" type="string"></property>
<property name="locationid" column="LOCATION_ID" type="int"></property>
<property name="managerid" column="MANAGER_ID" type="int"></property>
</class>
</hibernate-mapping>
hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration SYSTEM
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">oracle.jdbc.OracleDriver</property>
<property name="hibernate.connection.url">jdbc:oracle:thin:#localhost:1521:xe</property>
<property name="hibernate.connection.username">hr</property>
<property name="hibernate.connection.password">hr</property>
<property name="hibernate.dialect">org.hibernate.dialect.Oracle8iDialect</property>
<property name="hibernateshow_sql">true</property>
<mapping resource="department.hbm.xml"/>
</session-factory>
</hibernate-configuration>
I am receiving the following when i run the code:
May 28, 2022 11:58:17 AM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.2.11.Final}
May 28, 2022 11:58:17 AM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
May 28, 2022 11:58:17 AM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
May 28, 2022 11:58:17 AM org.hibernate.boot.jaxb.internal.stax.LocalXmlResourceResolver resolveEntity
WARN: HHH90000012: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/hibernate-mapping. Use namespace http://www.hibernate.org/dtd/hibernate-mapping instead. Support for obsolete DTD/XSD namespaces may be removed at any time.
May 28, 2022 11:58:17 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
May 28, 2022 11:58:17 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [oracle.jdbc.OracleDriver] at URL [jdbc:oracle:thin:#localhost:1521:xe]
May 28, 2022 11:58:17 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {password=****, user=hr}
May 28, 2022 11:58:17 AM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
May 28, 2022 11:58:17 AM org.hibernate.engine.jdbc.connections.internal.PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
May 28, 2022 11:58:18 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.Oracle8iDialect
May 28, 2022 11:58:18 AM org.hibernate.search.engine.Version <clinit>
INFO: HSEARCH000034: Hibernate Search 5.8.0.Final
May 28, 2022 11:58:18 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
WARN: SQL Error: 2291, SQLState: 23000
May 28, 2022 11:58:18 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions
ERROR: ORA-02291: integrity constraint (HR.DEPT_MGR_FK) violated - parent key not found
May 28, 2022 11:58:18 AM org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl release
INFO: HHH000010: On release of batch it still contained JDBC statements
May 28, 2022 11:58:18 AM org.hibernate.internal.ExceptionMapperStandardImpl mapManagedFlushFailure
ERROR: HHH000346: Error during managed flush [org.hibernate.exception.ConstraintViolationException: could not execute statement]
Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:149)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:157)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:164)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1443)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:493)
at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3207)
at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2413)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:467)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:156)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38)
at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231)
at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:68)
at com.wipro.services.DepartmentAdmin.main(DepartmentAdmin.java:19)
Caused by: org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:59)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:111)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:97)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:178)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:45)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3013)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3513)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:89)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:589)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:463)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:337)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:39)
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1437)
... 9 more
Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-02291: integrity constraint (HR.DEPT_MGR_FK) violated - parent key not found
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208)
at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:1046)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1336)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3694)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1354)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:175)
... 18 more
Table departments structure:
Name | Null? | Type |
:---------------|:--------:| ------------ :|
DEPARTMENT_ID | NOT NULL | NUMBER(4) |
DEPARTMENT_NAME | NOT NULL |VARCHAR2(30) |
MANAGER_ID | |NUMBER(6) |
LOCATION_ID | | NUMBER(4) |
I have no idea what is happening here...anyhelp is most welcomed...

The problem is that you didn't map the association correctly. Given the name of the table and constraint, I think there's not a manager matching the id you have specified.
A relationship between Department and Manager (assuming a department has only one manager) should look something like:
#Entity
public class Department {
....
#ManyToOne // Assuming a manager can manage multiple departments
Manager manager;
}
#Entity
public class Manager {
// ... id, fields, getters/setters
}
I've used annotations because I find it easier (and probably more common) but you can do the same with XML.
I would suggest to check the Hibernate ORM documentation to figure out how to map associations.

Hibernate error: java.lang.ClassNotFoundException: Could not load requested class

I am new in Hibernate and facing some problem during execution first programme:
java.lang.ClassNotFoundException: Could not load requested class : com.mysql.jdbc.Driver. I was following tutorial about Hibernate, did everything same(even copied everything and tried to run).I've been searching for answers all over the internet, but none of them helped me.
persistence.xml:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<class>com.newthinktank.JEETut3.Customer</class>
<properties>
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost/test4" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password" value="myPassword!" />
</properties>
</persistence-unit>
</persistence>
pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.newthinktank</groupId>
<artifactId>JEETut3</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>JEETut3</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.4.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.4.1.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.15</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
*Customer:*
package com.newthinktank.JEETut3;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
#Entity
#Table(name = "customer")
public class Customer implements Serializable {
private static final long serialVersionUID = 1L;
#Id
private int id;
#Column(name = "firstName", nullable = false)
private String fName;
#Column(name = "lastName", nullable = false)
private String lName;
public int getID() {
return id;
}
public void setID(int id) {
this.id = id;
}
public String getFName() {
return fName;
}
public void setFName(String fName) {
this.fName = fName;
}
public String getLName() {
return lName;
}
public void setLName(String lName) {
this.lName = lName;
}
}
TestSystem:
package com.newthinktank.JEETut3;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.NoResultException;
import javax.persistence.Persistence;
import javax.persistence.TypedQuery;
public class TestSystem {
private static final EntityManagerFactory ENTITY_MANAGER_FACTORY = Persistence
.createEntityManagerFactory("JEETut3");
public static void main(String[] args) {
addCustomer(1, "Sue", "Smith");
addCustomer(2, "Sam", "Smith");
addCustomer(3, "Sid", "Smith");
addCustomer(4, "Sally", "Smith");
getCustomer(1);
getCustomers();
changeFName(4, "Mark");
deleteCustomer(3);
ENTITY_MANAGER_FACTORY.close();
}
public static void addCustomer(int id, String fname, String lname) {
EntityManager em = ENTITY_MANAGER_FACTORY.createEntityManager();
EntityTransaction et = null;
try {
et = em.getTransaction();
et.begin();
Customer cust = new Customer();
cust.setID(id);
cust.setFName(fname);
cust.setLName(lname);
em.persist(cust);
et.commit();
} catch (Exception ex) {
if (et != null) {
et.rollback();
}
ex.printStackTrace();
} finally {
em.close();
}
}
public static void getCustomer(int id) {
EntityManager em = ENTITY_MANAGER_FACTORY.createEntityManager();
String query = "SELECT c FROM Customer c WHERE c.id = :custID";
TypedQuery<Customer> tq = em.createQuery(query, Customer.class);
tq.setParameter("custID", id);
Customer cust = null;
try {
cust = tq.getSingleResult();
System.out.println(cust.getFName() + " " + cust.getLName());
} catch (NoResultException ex) {
ex.printStackTrace();
} finally {
em.close();
}
}
public static void getCustomers() {
EntityManager em = ENTITY_MANAGER_FACTORY.createEntityManager();
String strQuery = "SELECT c FROM Customer c WHERE c.id IS NOT NULL";
TypedQuery<Customer> tq = em.createQuery(strQuery, Customer.class);
List<Customer> custs;
try {
custs = tq.getResultList();
custs.forEach(cust -> System.out.println(cust.getFName() + " " + cust.getLName()));
} catch (NoResultException ex) {
ex.printStackTrace();
} finally {
em.close();
}
}
public static void changeFName(int id, String fname) {
EntityManager em = ENTITY_MANAGER_FACTORY.createEntityManager();
EntityTransaction et = null;
Customer cust = null;
try {
et = em.getTransaction();
et.begin();
cust = em.find(Customer.class, id);
cust.setFName(fname);
em.persist(cust);
et.commit();
} catch (Exception ex) {
if (et != null) {
et.rollback();
}
ex.printStackTrace();
} finally {
em.close();
}
}
public static void deleteCustomer(int id) {
EntityManager em = ENTITY_MANAGER_FACTORY.createEntityManager();
EntityTransaction et = null;
Customer cust = null;
try {
et = em.getTransaction();
et.begin();
cust = em.find(Customer.class, id);
em.remove(cust);
et.commit();
} catch (Exception ex) {
if (et != null) {
et.rollback();
}
ex.printStackTrace();
} finally {
em.close();
}
}
}
Error:
lip 24, 2020 1:42:49 PM org.hibernate.jpa.internal.util.LogHelper logPersistenceUnitInformation
INFO: HHH000204: Processing PersistenceUnitInfo [name: JEETut3]
lip 24, 2020 1:42:49 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.4.3.Final}
lip 24, 2020 1:42:49 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
lip 24, 2020 1:42:49 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:175)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:118)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:900)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:931)
at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:56)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
at com.newthinktank.JEETut3.TestSystem.<clinit>(TestSystem.java:15)
Caused by: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [com.mysql.jdbc.Driver]
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:136)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.loadDriverIfPossible(DriverManagerConnectionProviderImpl.java:149)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildCreator(DriverManagerConnectionProviderImpl.java:105)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.buildPool(DriverManagerConnectionProviderImpl.java:89)
at org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:73)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:107)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:246)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.buildJdbcConnectionAccess(JdbcEnvironmentInitiator.java:145)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:66)
at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35)
at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263)
... 14 more
Caused by: java.lang.ClassNotFoundException: Could not load requested class : com.mysql.jdbc.Driver
at org.hibernate.boot.registry.classloading.internal.AggregatedClassLoader.findClass(AggregatedClassLoader.java:210)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:416)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:133)
... 26 more
Does anyone know how to resolve problem?

I have tested your code and the problem is in the mysql maven dependency you need to remove scope provided because you are saying it will be provided while running but that is not the case.
These are the changes I did to make it run.
Remove provided scope to mysql maven dependency
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.15</version>
</dependency>
Change your jdbc driver in persistence.xml as the one you use is deprecated
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
You are also missing a mandatory part of persistence.xml code
<persistence-unit name="JEETut3" transaction-type="RESOURCE_LOCAL">
I have also added the dialect of database in the persistence.xml
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
In case you want the tables to be created automatically on each execution you can add
<property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
In summary this is the persistence I used
<persistence-unit name="JEETut3" transaction-type="RESOURCE_LOCAL">
<class>com.newthinktank.JEETut3.Customer</class>
<properties>
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost/test4"/>
<property name="javax.persistence.jdbc.user" value="root"/>
<property name="javax.persistence.jdbc.password" value="myPassword!"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
<property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
</properties>
</persistence-unit>
This is the result you will get in the database
I hope this helps you solving your issue

"QuerySyntaxException: User is not mapped" when adding an entity from another package

I've made a Hibernate configuration maven project (built with the maven-shade-plugin) to allow my codebase to use one unified "database class". However, the class does not seem to map (throws a org.hibernate.hql.internal.ast.QuerySyntaxException: User is not mapped exception at runtime) when called from outside the running project.
When ran within the project, everything works fine. However, Hibernate fails to map the entity when run from outside the project.
CommonDB.java (part of the maven package meta1203-data)
package com.meta1203.microservices;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class CommonDB <C extends BaseEntity> {
private Configuration cfg;
private SessionFactory sf;
private Session session;
private Class<C> c;
public CommonDB(Class<C> anoClass) {
String jdbcUrl = String.format(
"jdbc:mysql://%s/%s",
System.getenv("DB_URL"),
System.getenv("DB_NAME"));
cfg = new Configuration()
.setProperty("hibernate.connection.url", jdbcUrl)
.setProperty("hibernate.connection.username", System.getenv("DB_USERNAME"))
.setProperty("hibernate.connection.password", System.getenv("DB_PASSWORD"))
.setProperty("hibernate.connection.driver_class", "com.mysql.jdbc.Driver")
.setProperty("hibernate.connection.pool_size", "1")
.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect")
.setProperty("hibernate.hbm2ddl.auto", "update")
.setProperty("hibernate.show_sql", "true")
.addAnnotatedClass(anoClass.getClass());
c = anoClass;
}
public void open() {
sf = cfg.buildSessionFactory();
session = sf.openSession();
}
public void close() {
session.close();
sf.close();
}
public C findOneBy(String field, String o) {
String query = "select u from " + c.getSimpleName() + " u where u." + field + " = :id";
return session.createQuery(query, c).setParameter("id", o).getSingleResult();
}
// other CRUD functions
}
TestDB.java (part of the maven package meta1203-userservice)
package com.meta1203.microservices.user;
import com.meta1203.microservices.CommonDB;
import com.meta1203.microservices.user.model.User;
public class TestDB {
public static void main(String[] args) {
TestDB tdb = new TestDB();
CommonDB<User> db = new CommonDB<User>(User.class);
db.open();
User hunter = db.findOneBy("username", "hunter");
System.out.println(hunter.getUsername());
System.out.println(db.countBy("username", "hunter"));
db.close();
}
}
User.java (part of the maven package meta1203-userservice)
package com.meta1203.microservices.user.model;
import java.util.Set;
import javax.persistence.ElementCollection;
import javax.persistence.Entity;
import javax.persistence.Table;
import com.meta1203.microservices.BaseEntity;
#Entity
#Table(name = "users")
public class User extends BaseEntity {
private String username;
private String textNotificationList;
private String emailNotificationList;
#ElementCollection
private Set<Long> ignoredAlerts;
#ElementCollection
private Set<Long> clients;
// to be parsed with DateTimeFormatter.ISO_OFFSET_DATE_TIME
private String lastItineraryUpdate;
// getters and setters
}
parent's pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.meta1203</groupId>
<artifactId>meta1203-services</artifactId>
<packaging>pom</packaging>
<version>0.0.1</version>
<properties>
<java.version>1.8</java.version>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-lambda-java-core</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>com.meta1203</groupId>
<artifactId>meta1203-data</artifactId>
<version>0.0.1</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.3.11.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.36</version>
</dependency>
</dependencies>
<modules>
<module>meta1203-userservice</module>
</modules>
</project>
Sep 07, 2019 2:36:13 AM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {[WORKING]}
Sep 07, 2019 2:36:13 AM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Sep 07, 2019 2:36:13 AM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.4.Final}
Sep 07, 2019 2:36:14 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
Sep 07, 2019 2:36:14 AM org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl getIsolatedConnection
INFO: HHH10001501: Connection obtained from JdbcConnectionAccess [org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess#329dbdbf] for (non-JTA) DDL execution was not in auto-commit mode; the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode.
Sep 07, 2019 2:36:14 AM org.hibernate.hql.internal.QueryTranslatorFactoryInitiator initiateService
INFO: HHH000397: Using ASTQueryTranslatorFactory
Exception in thread "main" java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: User is not mapped [select u from User u where u.username = :id]
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:138)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:188)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:729)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:745)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:104)
at com.meta1203.microservices.CommonDB.findOneBy(CommonDB.java:72)
at com.meta1203.microservices.user.TestDB.main(TestDB.java:12)
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: User is not mapped [select u from User u where u.username = :id]
at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:79)
at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:103)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:219)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:143)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:119)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:80)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:153)
at org.hibernate.internal.AbstractSharedSessionContract.getQueryPlan(AbstractSharedSessionContract.java:611)
at org.hibernate.internal.AbstractSharedSessionContract.createQuery(AbstractSharedSessionContract.java:720)
... 4 more
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: User is not mapped
at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:169)
at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:91)
at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:79)
at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:331)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3695)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3584)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:720)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:576)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:313)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:261)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:271)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:191)
... 10 more

#Entity
#Table(name = "users")
public class User extends BaseEntity {
Your entity is called User but its mapped to a table called users.
Either change the entity to Users or table to user.
That should do it.

Try:
Configuration configuration = new Configuration().configure();
for (Class cls : getEntityClassesFromPackage("com.example.hib.entities")) {
configuration.addAnnotatedClass(cls);
}

Whelp, I found out what was going on. My galaxy brain decided to do addAnnotatedClass(anoClass.getClass()) on a Class object, so I was trying to declare java.lang.Class as a Hibernate Entity... Oh well, I'm just an idiot. Changed it to just addAnnotatedClass(anoClass) and it works just fine.

Hibernate not connecting with MySql

Stuck at this place I am new to hibernate and making a sample code after watching tutorial However I am stuck connecting hibernate with MySql.
Here is hibernate.cfg.xml placed in the source folder
<?xml version='1.0' encoding='utf-8'?>
<!-- ~ Hibernate, Relational Persistence for Idiomatic Java ~ ~ License:
GNU Lesser General Public License (LGPL), version 2.1 or later. ~ See the
lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>. -->
<hibernate-configuration
xmlns="http://www.hibernate.org/xsd/hibernate-configuration"
xsi:schemaLocation="http://www.hibernate.org/xsd/hibernate-configuration
hibernate-configuration-4.0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/test</property>
<property name="connection.username">root</property>
<property name="connection.password">root</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>
<!-- 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.internal.NoCacheProvider
</property>
<property name="current_session_context_class">thread</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>
<mapping class="com.javapapers.UserDetails" />
</session-factory>
</hibernate-configuration>
And here is my HibernateTest.java file
package com.javapapers;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
UserDetails user=new UserDetails();
user.setUserId(1);
user.setUserName("Mannu");
System.out.println("Here");
SessionFactory sessionFactory=new Configuration().configure().buildSessionFactory();
System.out.println("Not even printed");
Session session=sessionFactory.openSession();
session.beginTransaction();
session.save(user);
session.getTransaction().commit();
}
}
Here is UserDetails.java
package com.javapapers;
import javax.persistence.Entity;
import javax.persistence.Id;
#Entity
public class UserDetails {
#Id
private int userId;
private String userName;
public int getUserId() {
return userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
And Here is Error Report
Here
Nov 11, 2015 2:23:03 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.0.2.Final}
Nov 11, 2015 2:23:03 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Nov 11, 2015 2:23:03 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Exception in thread "main" org.hibernate.internal.util.config.ConfigurationException: Unable to perform unmarshalling at line number 10 and column 56 in RESOURCE hibernate.cfg.xml. Message: cvc-elt.1: Cannot find the declaration of element 'hibernate-configuration'.
at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(JaxbCfgProcessor.java:133)
at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(JaxbCfgProcessor.java:65)
at org.hibernate.boot.cfgxml.internal.ConfigLoader.loadConfigXmlResource(ConfigLoader.java:57)
at org.hibernate.boot.registry.StandardServiceRegistryBuilder.configure(StandardServiceRegistryBuilder.java:163)
at org.hibernate.cfg.Configuration.configure(Configuration.java:259)
at org.hibernate.cfg.Configuration.configure(Configuration.java:245)
at com.javapapers.HibernateTest.main(HibernateTest.java:15)
Caused by: javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException; lineNumber: 10; columnNumber: 56; cvc-elt.1: Cannot find the declaration of element 'hibernate-configuration'.]
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.handleStreamException(UnmarshallerImpl.java:420)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:401)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:374)
at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(JaxbCfgProcessor.java:126)
... 6 more
Caused by: org.xml.sax.SAXParseException; lineNumber: 10; columnNumber: 56; cvc-elt.1: Cannot find the declaration of element 'hibernate-configuration'.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:134)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:437)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:325)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1906)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:746)
at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHandlerImpl.startElement(ValidatorHandlerImpl.java:570)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.ValidatingUnmarshaller.startElement(ValidatingUnmarshaller.java:86)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.InterningXmlVisitor.startElement(InterningXmlVisitor.java:60)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.StAXEventConnector.handleStartElement(StAXEventConnector.java:246)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.StAXEventConnector.bridge(StAXEventConnector.java:115)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:398)
... 8 more

Create SessionFactory like that. It worked at Hibernate 4.3.
Configuration configuration = new Configuration();
configuration.configure();
private static ServiceRegistry serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();
private static SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);
And it's total violation of factory pattern to do that in main. Make separate class for it.