<class name="clientes.Cliente" table="Clientes">   
         
         <id name="id" column="id" type="integer">
             <generator class="native"/>
          </id>
          
        <property name="Activo" column="Activo" not-null="true" type="boolean"/>                                                               
        <property name="Comentarios" column="Comentarios" not-null="false" length="400" type="string"/>               
      <property name="Direccion" column="Direccion" not-null="true" length="200" type="string"/>               
        <property name="EMail" column="EMail" not-null="false" length="50" type="string"/>               
        <property name="Fax" column="Fax" not-null="false" length="20" type="string"/>               
        <property name="Telefono" column="Telefono" not-null="true" length="20" type="string"/>                                       
         <property name="Login" column="Login" not-null="false" length="20" type="string" />                 
      <property name="Password" column="Password" not-null="false" length="20" type="string"/>       
      <property name="Nombre" column="Nombre" not-null="true" length="20" type="string"/>               
      <property name="Apellido" column="Apellido" not-null="false" length="20" type="string"/>                      
      <property name="TipoDocumento" column="TipoDocumento" not-null="true" type="integer"/>                      
         <property name="NumeroDocumento" column="NumeroDocumento" not-null="true" type="integer"/>            
      <property name="Celular" column="Celular" not-null="false" length="20" type="string"/>      
        <property name="CUILoCUIT" column="CUILoCUIT" not-null="true" type="boolean"/>                                                                            
      <property name="NumeroCUILoCUIT" column="NumeroCUILoCUIT" length="50" not-null="true" type="string"/>                             
        <property name="AccesoWeb" column="AccesoWeb" not-null="true" type="boolean"/>                                                                            

         <property name="idEmpresa" column="idEmpresa" not-null="true" type="integer"/> 
       
      <many-to-one name="Empresa" column="idEmpresa" class="clientes.Empresa" update="false" insert="false" />

   </class>

</hibernate-mapping>

session.merge(o);
session.flush();
session.refresh(o);

GRAVE: could not initialize proxy - the owning Session was closed
org.hibernate.LazyInitializationException: could not initialize proxy - the owning Session was closed
   at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:53)
   at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:84)
   at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:134)
   at clientes.Empresa$$EnhancerByCGLIB$$a57e897a.getDenominacion(<generated>)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:491)
   at ognl.OgnlRuntime.getMethodValue(OgnlRuntime.java:904)
   at ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:54)
   at ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:122)
   at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1616)
   at ognl.ASTProperty.getValueBody(ASTProperty.java:96)
   at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
   at ognl.SimpleNode.getValue(SimpleNode.java:190)
   at ognl.ASTChain.getValueBody(ASTChain.java:109)
   at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
   at ognl.SimpleNode.getValue(SimpleNode.java:190)
   at ognl.Ognl.getValue(Ognl.java:333)
   at com.opensymphony.xwork.util.OgnlValueStack.findValue(OgnlValueStack.java:167)
   at com.opensymphony.webwork.views.jsp.PropertyTag.doStartTag(PropertyTag.java:55)
   at org.apache.jsp.WEB.Clientes.clientesLoad_jsp._jspx_meth_ww_property_2(org.apache.jsp.WEB.Clientes.clientesLoad_jsp:425)
   at org.apache.jsp.WEB.Clientes.clientesLoad_jsp._jspx_meth_ww_if_1(org.apache.jsp.WEB.Clientes.clientesLoad_jsp:402)
   at org.apache.jsp.WEB.Clientes.clientesLoad_jsp._jspx_meth_ww_form_0(org.apache.jsp.WEB.Clientes.clientesLoad_jsp:277)
   at org.apache.jsp.WEB.Clientes.clientesLoad_jsp._jspService(org.apache.jsp.WEB.Clientes.clientesLoad_jsp:138)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
   at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
   at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
   at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
   at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
   at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
   at com.opensymphony.webwork.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:81)
   at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:109)
   at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:263)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:187)
   at com.opensymphony.xwork.interceptor.DefaultWorkflowInterceptor.intercept(DefaultWorkflowInterceptor.java:55)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at seguridad.ZeroPoint.intercept(ZeroPoint.java:48)
   at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
   at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)
   at com.opensymphony.webwork.dispatcher.ServletDispatcher.serviceAction(ServletDispatcher.java:272)
   at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:237)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
   at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
   at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
   at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
   at java.lang.Thread.run(Unknown Source)

[b]Name and version of the database you are using:[/b]
Microsoft SQL Server 2000