org.dom4j.DocumentException: hibernate.org Nested exception: hibernate.org

I am new to hibernate.I am developing a struts application where i want to integerate hibernate.I am using SQL Server 2008 R2 as database.I have configured my hibernate configuration file and used annotations based entities.When i try to run my hibernate configuration file,I get this below error : Error ``` 12:49:41.752 [main] DEBUG org.hibernate.util.DTDEntityResolver - trying to resol ve system-id [http://hibernate.org/dtd/hibernate-configuration-3.0.dtd] Initial SessionFactory creation failed.org.hibernate.HibernateException: Could n ot parse configuration: hibernate.cfg.xml ``` I have given my files below : DAOImpl ``` package com.myProj.dao.impl; import java.util.logging.Logger; import com.googlecode.s2hibernate.struts2.plugin.annotations.SessionTarget; import com.googlecode.s2hibernate.struts2.plugin.annotations.TransactionTarget; import com.myProj.dao.StudentDetailsDAO; import com.myProj.entity.StudentDetails; import org.hibernate.Session; import org.hibernate.Transaction; public class StudentDetailsDAOImpl implements StudentDetailsDAO{ Logger LOGGER; @SessionTarget Session session; @TransactionTarget Transaction transaction; @Override public void saveOrUpdateStudentDetail(StudentDetails studDetails) { try{ session.saveOrUpdate(studDetails); }catch(Exception e){ transaction.rollback(); LOGGER.info("StudentDetailsDAOImpl : saveOrUpdateStudentDetail : Exception "+e.toString()); } } } ``` StudentDetails.java ``` package com.myProj.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="dbo.student_details") public class StudentDetails { @Id @GeneratedValue @Column(name="id") private int id; @Column(name="name") private String name; @Column(name="grade") private String grade; @Column(name="dob") private String dob; @Column(name="stud_address") private String stud_address; @Column(name="stud_language") private String stud_language; @Column(name="student_marks_id") private StudentMarks studentMarks; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getGrade() { return grade; } public void setGrade(String grade) { this.grade = grade; } public String getDob() { return dob; } public void setDob(String dob) { this.dob = dob; } public String getStud_address() { return stud_address; } public void setStud_address(String stud_address) { this.stud_address = stud_address; } public String getStud_language() { return stud_language; } public void setStud_language(String stud_language) { this.stud_language = stud_language; } public StudentMarks getStudentMarks() { return studentMarks; } public void setStudentMarks(StudentMarks studentMarks) { this.studentMarks = studentMarks; } } ``` StudentMark.java ``` package com.myProj.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="dbo.student_marks") public class StudentMarks { @Id @GeneratedValue @Column(name="id") private int id; @Column(name="english") private int english; @Column(name="physics") private int physics; @Column(name="chemistry") private int chemistry; @Column(name="biology") private int biology; @Column(name="maths") private int maths; public int getId() { return id; } public void setId(int id) { this.id = id; } public int getEnglish() { return english; } public void setEnglish(int english) { this.english = english; } public int getPhysics() { return physics; } public void setPhysics(int physics) { this.physics = physics; } public int getChemistry() { return chemistry; } public void setChemistry(int chemistry) { this.chemistry = chemistry; } public int getBiology() { return biology; } public void setBiology(int biology) { this.biology = biology; } public int getMaths() { return maths; } public void setMaths(int maths) { this.maths = maths; } } ``` HibernateUtil.java ``` package com.myProj.util; import org.hibernate.SessionFactory; import org.hibernate.cfg.AnnotationConfiguration; import com.myProj.entity.StudentDetails; public class HibernateUtil { private static final SessionFactory sessionFactory; static { try { AnnotationConfiguration config = new AnnotationConfiguration(); config.addAnnotatedClass(StudentDetails.class); config.configure("hibernate.cfg.xml"); //new SchemaExport(config).create(true,true); sessionFactory = config.buildSessionFactory(); } catch (Throwable ex) { // Log the exception. System.err.println("Initial SessionFactory creation failed." + ex); throw new ExceptionInInitializerError(ex); } } public static SessionFactory getSessionFactory() { return sessionFactory; } } ``` hibernate.cfg.xml ``` <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property> <property name="hibernate.connection.url"> jdbc:sqlserver://<myIp>:1433;databaseName=<myDatabase></property> <property name="hibernate.connection.username">root</property> <property name="connection.password">root</property> <property name="connection.pool_size">1</property> <property name="hibernate.dialect">org.hibernate.dialect.SQLServer2008Dialect</property> <property name="show_sql">true</property> <property name="hbm2ddl.auto">create</property> <mapping class="com.myProj.entity.StudentDetails" ></mapping> <mapping class="com.myProj.entity.StudentMarks" ></mapping> </session-factory> </hibernate-configuration> ``` I have given below the list of jar files that i am using : commons-beanutils-1.8.0.jar commons-chain-1.2.jar commons-digester-2.1.jar hibernate-3.5.3.jar javax.servlet-3.0.jar logback-classic-0.9.6.jar logback-core-0.9.6.jar ognl-3.0.6.jar slf4j-api-2.0.99.jar slf4j-log4j13-1.0.1.jar sqljdbc-1.2.0.jar struts-core-1.3.10.jar struts-taglib-1.3.10-sources.jar struts-taglib-1.3.5.jar struts2-core-2.3.8.jar struts2-json-plugin-2.3.8.jar struts2-tiles-plugin-2.1.8.1.jar xwork-2.0.4.jar xwork-core-2.3.12.jar Also when i check my apache server i get the following error in it Apache Server log ``` java.lang.ExceptionInInitializerError at com.myProj.util.HibernateUtil.<clinit>(HibernateUtil.java:27) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at java.lang.Class.newInstance0(Class.java:355) at java.lang.Class.newInstance(Class.java:308) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3744) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4252) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014) at org.apache.catalina.core.StandardHost.start(StandardHost.java:736) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:448) at org.apache.catalina.core.StandardServer.start(StandardServer.java:700) at org.apache.catalina.startup.Catalina.start(Catalina.java:552) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433) Caused by: org.hibernate.HibernateException: Could not parse configuration: hibernate.cfg.xml at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1586) at org.hibernate.cfg.AnnotationConfiguration.doConfigure(AnnotationConfiguration.java:1212) at org.hibernate.cfg.AnnotationConfiguration.doConfigure(AnnotationConfiguration.java:107) at org.hibernate.cfg.Configuration.configure(Configuration.java:1520) at org.hibernate.cfg.AnnotationConfiguration.configure(AnnotationConfiguration.java:1194) at com.myProj.util.HibernateUtil.<clinit>(HibernateUtil.java:19) ... 21 more Caused by: org.dom4j.DocumentException: hibernate.org Nested exception: hibernate.org at org.dom4j.io.SAXReader.read(SAXReader.java:484) at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1576) ... 26 more ```