java.lang.ClassCastException: com.cup.model.Product
   at com.cup.model.ProductHome.findById(ProductHome.java:133)
   at com.cup.servlet.StartpageController.handleRequest(StartpageController.java:61)
   at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44)
   at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:675)
   at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:623)
   at org.springframework.web.servlet.FrameworkServlet.serviceWrapper(FrameworkServlet.java:384)
   at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:344)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
   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.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
   at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
   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:869)
   at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
   at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
   at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
   at java.lang.Thread.run(Thread.java:595)

package com.cup.model;

// Generated 02.jun.2006 22:55:56 by Hibernate Tools 3.1.0.beta5

/**
* Product generated by hbm2java
*/
public class Product implements java.io.Serializable {

    // Fields   

    /**
     *
     */
    private static final long serialVersionUID = 6300486666868987926L;

    private String id;

    private Integer amount;

    private Double price;

    private String name;

    // Constructors

    /** default constructor */
    public Product() {}

    /** minimal constructor */
    public Product(String id) {
        this.id = id;
    }

    /** full constructor */
    public Product(String id, Integer amount, Double price, String name) {
        this.id = id;
        this.amount = amount;
        this.price = price;
        this.name = name;
    }

    // Property accessors
    public String getId()
    {
        return this.id;
    }

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

    public Integer getAmount()
    {
        return this.amount;
    }

    public void setAmount(Integer amount)
    {
        this.amount = amount;
    }

    public Double getPrice()
    {
        return this.price;
    }

    public void setPrice(Double price)
    {
        this.price = price;
    }

    public String getName()
    {
        return this.name;
    }

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

}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 02.jun.2006 22:55:56 by Hibernate Tools 3.1.0.beta5 -->
<hibernate-mapping>
    <class name="com.cup.model.Product" table="product">
        <id name="id" type="string">
            <column name="id" length="32" />
            <generator class="assigned" />
        </id>
        <property name="amount" type="java.lang.Integer">
            <column name="amount"></column>
        </property>
        <property name="price" type="java.lang.Double">
            <column name="price" precision="22" scale="0"></column>
        </property>
        <property name="name" type="string">
            <column name="name" length="100"></column>
        </property>
    </class>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
   <session-factory name="SessionFactory">
      <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/resultservice</property>
      <property name="hibernate.cglib.use_reflection_optimizer">true</property>
      <property name="hibernate.connection.username">****</property>
      <property name="hibernate.connection.password">*******</property>
      <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
      <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
      <property name="hibernate.connection.pool_size">4</property>

      <property name="hibernate.show_sql">true</property>
      <!-- Disable the second-level cache  -->
      <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>


      <property name="transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>

      <!-- mapping files -->
      <mapping resource="com/cup/model/Product.hbm.xml" />
      
   </session-factory>
</hibernate-configuration>

public Product findById(java.lang.String id)
{
   try
   {
          Product instance = (Product) session.get("com.cup.model.Product", id);
          if (instance == null)
          {
         log.debug("get successful, no instance found");
          } else
          {
         log.debug("get successful, instance found");
          }
          return instance;
   } catch (RuntimeException re)
   {
       log.error("get failed", re);
       throw re;
   }
}