org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.MappingException: Unknown entity: Stock
   org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:656)
   org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

root cause

org.hibernate.MappingException: Unknown entity: Stock
   org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:693)
   org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.getSQLLoadable(SQLQueryReturnProcessor.java:335)
   org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.processRootReturn(SQLQueryReturnProcessor.java:376)
   org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.processReturn(SQLQueryReturnProcessor.java:355)
   org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.process(SQLQueryReturnProcessor.java:171)
   org.hibernate.loader.custom.sql.SQLCustomQuery.<init>(SQLCustomQuery.java:87)
   org.hibernate.engine.query.NativeSQLQueryPlan.<init>(NativeSQLQueryPlan.java:67)
   org.hibernate.engine.query.QueryPlanCache.getNativeSQLQueryPlan(QueryPlanCache.java:166)
   org.hibernate.impl.AbstractSessionImpl.getNativeSQLQueryPlan(AbstractSessionImpl.java:160)
   org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
   org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:157)
   com.stockdomain.domain.StockDAOImpl.getRecord(StockDAOImpl.java:31)
   sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   java.lang.reflect.Method.invoke(Method.java:597)
   org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
   org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
   org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
   org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
   org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
   org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
   $Proxy13.getRecord(Unknown Source)
   com.stockdomain.bo.StockBO.getStock(StockBO.java:187)
   com.stockdomain.bo.StockBO.getStockHibernate(StockBO.java:113)
   com.stockdomain.controller.StockController.submitForm(StockController.java:96)
   sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   java.lang.reflect.Method.invoke(Method.java:597)
   org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
   org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)
   org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
   org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
   org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
   org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
   org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

<?xml version="1.0" encoding="UTF-8"?>
         
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:task="http://www.springframework.org/schema/task"
       xsi:schemaLocation="
           http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-3.0.xsd
           http://www.springframework.org/schema/task
           http://www.springframework.org/schema/task/spring-task-3.0.xsd">         
         
   <context:component-scan base-package="com.stockdomain">
       <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
   </context:component-scan>         

    <!-- dataSource -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
      <property name="driverClassName"><value>org.postgresql.Driver</value></property>
      <property name="url"><value>jdbc:postgresql://localhost/db_finance</value></property>
      <property name="username"><value>xxxx</value></property>
      <property name="password"><value>xxxx</value></property>
    </bean> 
 
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
      <property name="dataSource" ref="dataSource" />
      <property name="annotatedClasses">
           <list>
                <value>com.stockdomain.domain.Stock</value>
           </list>
      </property>
      <property name="hibernateProperties">
         <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">create</prop>
         </props>
      </property>
   </bean>
   
    <bean id="txManager"
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory">
               <ref bean="sessionFactory" />
        </property>
    </bean>
   
    <!-- Enable the configuration of transactional behavior based on annotations -->
    <tx:annotation-driven transaction-manager="txManager"/>            
   
</beans>

package com.stockdomain.domain;

import java.util.HashMap;
import java.util.List;

import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import com.stockdomain.util.DbUtilities;

@Transactional
@Repository
public class StockDAOImpl implements StockDAO {

   @Autowired
   SessionFactory sessionFactory;

   public void saveStock(Stock stock) {
      // getHibernateTemplate().saveOrUpdate(stock);
   }

   @SuppressWarnings("unchecked")
   public List<Stock> getRecord() {
      String sql = "SELECT * FROM stock ";
      Query query = sessionFactory.getCurrentSession().createSQLQuery(sql).addEntity("Stock");
      List<Stock> list = query.list();
      return list;
   }
}

package com.stockdomain.domain;

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.annotations.Entity;



@Entity
@Table(name = "stock")
public class Stock {

   @Id
   @GeneratedValue
   private int id;
   @Column
   private String code;
   @Column
   private String name;
   @Column
   private String isin;
   @Column
   private String exchangeCode;
   @Column
   private String countryCode;
   @Column
   private String subSectorCode;
   @Column
   private String active;
   @Column
   private String liquid;

   public void setId(int id) {
      this.id = id;
   }

   public int getId() {
      return id;
   }

   public String getCode() {
      return code;
   }

   public void setCode(String code) {
      this.code = code;
   }

   public String getName() {
      return name;
   }

   public void setName(String name) {
      this.name = name;
   }

   public String getIsin() {
      return isin;
   }

   public void setIsin(String isin) {
      this.isin = isin;
   }

   public String getExchangeCode() {
      return exchangeCode;
   }

   public void setExchangeCode(String exchangeCode) {
      this.exchangeCode = exchangeCode;
   }

   public String getCountryCode() {
      return countryCode;
   }

   public void setCountryCode(String countryCode) {
      this.countryCode = countryCode;
   }

   public String getSubSectorCode() {
      return subSectorCode;
   }

   public void setSubSectorCode(String subSectorCode) {
      this.subSectorCode = subSectorCode;
   }

   public String getActive() {
      return active;
   }

   public void setActive(String active) {
      this.active = active;
   }

   public String getLiquid() {
      return liquid;
   }

   public void setLiquid(String liquid) {
      this.liquid = liquid;
   }

}