Hibernate version:
3

Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping
PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="Table" table="acq_mon_amb_sotter">
<composite-id>
<key-property name="Par_cod" column="PARAMETRO_CODICE"/>
<key-property name="Punto_cod" column="PUNTO_CODICE"/>
<key-property name="Data" column="DATA_PRELIEVO"/>
</composite-id>
<property name="Punto_nome" column="PUNTO_NOME"/>
<property name="Provincia">
<column name="PROVINCIA" />
</property>
<property name="Comune">
<column name="COMUNE"/>
</property>
<property name="Par_nome">
<column name="PARAMETRO_NOME" />
</property>
<property name="Valore">
<column name="VALORE_NUM"/>
</property>
</class>
</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():
public class HibernateUtil {

private static final SessionFactory sessionFactory;

static {
try {
// Create the SessionFactory
//.addClass(Cat.class)
//.addClass(Riga.class)
//Configuration cfg = new Configuration().configure();
Configuration cfg = new Configuration().addClass(nuovo.bean.Table.class);
sessionFactory=cfg.buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
throw new ExceptionInInitializerError(ex);
}
}

public static final ThreadLocal session = new ThreadLocal();

public static Session currentSession() throws HibernateException {
Session s = (Session) session.get();
// Open a new Session, if this Thread has none yet
if (s == null) {
s = sessionFactory.openSession();
session.set(s);
}
return s;
}

public static void closeSession() throws HibernateException {
Session s = (Session) session.get();
session.set(null);
if (s != null)
s.close();
}
When I launch my application this is what happens.
Full stack trace of any exception that occurs:
type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:222)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:479)

root cause

java.lang.ExceptionInInitializerError: java.lang.NoClassDefFoundError: Table (wrong name: nuovo/bean/Table)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:488)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:106)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1649)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:931)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1373)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1252)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
at org.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:77)
at org.hibernate.mapping.SimpleValue.setTypeUsingReflection(SimpleValue.java:225)
at org.hibernate.cfg.HbmBinder.createProperty(HbmBinder.java:1552)
at org.hibernate.cfg.HbmBinder.bindComponent(HbmBinder.java:1330)
at org.hibernate.cfg.HbmBinder.bindCompositeId(HbmBinder.java:1227)
at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:501)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:1848)
at org.hibernate.cfg.Configuration.add(Configuration.java:344)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:382)
at org.hibernate.cfg.Configuration.addClass(Configuration.java:448)
at nuovo.control.HibernateUtil.<clinit>(HibernateUtil.java:29)
at nuovo.component.QueryDraw.<init>(QueryDraw.java:40)
at nuovo.model.PostHelperURL.processRequest(PostHelperURL.java:94)
at nuovo.control.DispatcherHelper.directPost(DispatcherHelper.java:115)
at nuovo.control.DispatcherHelper.dispatch(DispatcherHelper.java:71)
at nuovo.control.FrontProva.doPost(FrontProva.java:65)
at nuovo.control.FrontProva.doGet(FrontProva.java:44)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:479)


Name and version of the database you are using:
Oracle 8.1.7
I do not know what to make!!!
Can anybody help me, please?
I'm completly in your hands!!!
Mara

I know it might sound stupid, but...

Does the class nuovo.bean.Table exist ? If it does, is it reachable by your application at runtime ? Verify your packages.

Another thing: I usually specify full class name in the hbm file for the class name attribute.

Like : <class name="nuovo.bean.Table" ... >

Giulio

PS: Forza Italia ;)