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Hibernate version: 3.2

Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="Student" table="student">
<id name="id" column="_indexno">
<generator class="native"/>
</id>
<property name="fname" type="text" column="_fname"/>
<property name="lname" type="text" column="_lname"/>
<property name="age" type="int" column="_age"/>
<property name="school" type="text" column="_school"/>
</class>

</hibernate-mapping>


Code between sessionFactory.openSession() and session.close():

public static void main(String[] args) {
StudentManager mgr = new StudentManager();
mgr.createAndStoreStudent();
HibernateUtil.getSessionFactory().close();
}

private void createAndStoreStudent() {

Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
Student s = new Student("janaka","priyadarshana", 23, "wrmmv");
session.save(s);
session.getTransaction().commit();
}

}


Full stack trace of any exception that occurs:


C:\Borland\JBuilder2006\jdk1.5\bin\javaw -classpath "C:\Documents and Settings\Janaka Priyadarshana\jbproject\HibernateTesting\classes;C:\hibernate-3.2\hibernate3.jar;C:\hibernate-3.2\lib\commons-collections-2.1.1.jar;C:\hibernate-3.2\lib\asm.jar;C:\hibernate-3.2\lib\syndiag2.jar;C:\hibernate-3.2\lib\cglib-2.1.3.jar;C:\hibernate-3.2\lib\jgroups-2.2.8.jar;C:\hibernate-3.2\lib\jta.jar;C:\hibernate-3.2\lib\swarmcache-1.0rc2.jar;C:\hibernate-3.2\lib\ant-1.6.5.jar;C:\hibernate-3.2\lib\jdbc2_0-stdext.jar;C:\hibernate-3.2\lib\hsqldb.jar;C:\hibernate-3.2\lib\proxool-0.8.3.jar;C:\hibernate-3.2\lib\log4j-1.2.11.jar;C:\hibernate-3.2\lib\antlr-2.7.6.jar;C:\hibernate-3.2\lib\ant-junit-1.6.5.jar;C:\hibernate-3.2\lib\jacc-1_0-fr.jar;C:\hibernate-3.2\lib\versioncheck.jar;C:\hibernate-3.2\lib\jboss-cache.jar;C:\hibernate-3.2\lib\jboss-system.jar;C:\hibernate-3.2\lib\jboss-common.jar;C:\hibernate-3.2\lib\cleanimports.jar;C:\hibernate-3.2\lib\ant-antlr-1.6.5.jar;C:\hibernate-3.2\lib\ant-swing-1.6.5.jar;C:\hibernate-3.2\lib\concurrent-1.3.2.jar;C:\hibernate-3.2\lib\commons-logging-1.0.4.jar;C:\hibernate-3.2\lib\c3p0-0.9.0.jar;C:\hibernate-3.2\lib\connector.jar;C:\hibernate-3.2\lib\ant-launcher-1.6.5.jar;C:\hibernate-3.2\lib\jboss-jmx.jar;C:\hibernate-3.2\lib\xerces-2.6.2.jar;C:\hibernate-3.2\lib\dom4j-1.6.1.jar;C:\hibernate-3.2\lib\junit-3.8.1.jar;C:\hibernate-3.2\lib\xml-apis.jar;C:\hibernate-3.2\lib\oscache-2.1.jar;C:\hibernate-3.2\lib\asm-attrs.jar;C:\hibernate-3.2\lib\javassist.jar;C:\hibernate-3.2\lib\ehcache-1.2.jar;C:\hibernate-3.2\lib\jaxen-1.1-beta-7.jar;C:\hibernate-3.2\lib\jaas.jar;C:\hibernate-3.2\lib\checkstyle-all.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\plugin.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\rt.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\ext\dnsns.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\ext\sunpkcs11.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\ext\sunjce_provider.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\ext\localedata.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\im\indicim.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\im\thaiim.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\javaws.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\deploy.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\jsse.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\jce.jar;C:\Borland\JBuilder2006\jdk1.5\jre\lib\charsets.jar;C:\Borland\JBuilder2006\jdk1.5\lib\tools.jar;C:\Borland\JBuilder2006\jdk1.5\lib\jconsole.jar;C:\Borland\JBuilder2006\jdk1.5\lib\htmlconverter.jar;C:\Borland\JBuilder2006\jdk1.5\lib\dt.jar" student.StudentManager
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.ExceptionInInitializerError
at util.HibernateUtil.<clinit>(HibernateUtil.java:17)
at student.StudentManager.createAndStoreStudent(StudentManager.java:17)
at student.StudentManager.main(StudentManager.java:11)
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource student/Student.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:523)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1511)Initial SessionFactory creation failed.org.hibernate.InvalidMappingException: Could not parse mapping document from resource student/Student.hbm.xml

at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1479)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1458)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1432)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1352)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1338)
at util.HibernateUtil.<clinit>(HibernateUtil.java:13)
... 2 more
Caused by: org.hibernate.MappingException: class Student not found while looking for property: id
at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:74)
at org.hibernate.mapping.SimpleValue.setTypeUsingReflection(SimpleValue.java:276)
at org.hibernate.cfg.HbmBinder.bindSimpleId(HbmBinder.java:401)
at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:334)
at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:273)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:144)
at org.hibernate.cfg.Configuration.add(Configuration.java:424)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:465)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:520)
... 9 more
Caused by: java.lang.ClassNotFoundException: Student
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:70)
... 17 more



Name and version of the database you are using:

postgresql 8.1

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:


Problems with Session and transaction handling?

Read this: http://hibernate.org/42.html

not a tooling question - use the user forum (or simply read and understand the exception)