<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
   "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping
   package="shop.admin">

   <class name="Item" table="ITEMS" lazy="true">
      <id name="id" column="ITEM_ID">
         <generator class="uuid.string"/>
      </id>
      
      
      <property
         name="name"
         column="NAME"
         not-null="true"
         unique="false"
         type="string"/>
         
      <many-to-one
         name="order"
         column="ORDER_ID"
         class="Order"
         cascade="all"/>
         
      <property
         name="price"
         column="PRICE"
         not-null="true"
         unique="false"
         type="integer"/>
         
      <component name="vendor" class="Vendor">

         <property name="customer_name" column="CUST_NAME"/>
         <property name="customer_lastName" column="CUST_LAST"/>
         <property name="customer_code" column="CUST_CODE"/>
      </component>
         
         
      
   </class>
   
</hibernate-mapping>

package shop.admin;

public class Item{
   private String id;
   private String name;
   private int price;
   private Order order;
   private Vendor vendor;
   
   public void setVendor(Vendor vendor){
      this.vendor = vendor;
   }
   public Vendor getVendor(){
      return vendor;
   }
   
   public Item(){
   }
   
   public String getId(){
      return id;
   }
......
......

package shop.admin;

public class Vendor{

   private String customer_name;
   private String customer_lastName;
   private String customer_code;


      
      public void setCustomer_name(String name){
      this.customer_name = name;      

      }
      public void setCustomer_lastName(String last){
         this.customer_lastName = last;

      }
      public void setCustomer_code(String code){

         this.customer_code = code;
      }

      public String getCustomer_name(){
         return customer_name;      

      }
      public String getCustomer_lastName(){

         return customer_lastName;

      }
      public String getCustomer_code(){

         return customer_code;
      }   

}

18:43:17,703 INFO  [Configuration] Searching for mapping documents in jar: HibernateTest.har
18:43:17,703 INFO  [Configuration] Found mapping documents in jar: Item.hbm.xml
18:43:17,718 INFO  [Binder] Mapping class: shop.admin.Item -> ITEMS
18:43:17,718 ERROR [Configuration] Could not compile the mapping document
net.sf.hibernate.PropertyNotFoundException: field not found: vendor
        at net.sf.hibernate.property.DirectPropertyAccessor.getField(DirectPropertyAccessor.java:74)
        at net.sf.hibernate.property.DirectPropertyAccessor.getField(DirectPropertyAccessor.java:80)
        at net.sf.hibernate.property.DirectPropertyAccessor.getGetter(DirectPropertyAccessor.java:88)
        at net.sf.hibernate.util.ReflectHelper.getter(ReflectHelper.java:81)
        at net.sf.hibernate.util.ReflectHelper.reflectedPropertyClass(ReflectHelper.java:90)
        at net.sf.hibernate.cfg.Binder.propertiesFromXML(Binder.java:1049)
        at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:361)
        at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1253)
        at net.sf.hibernate.cfg.Configuration.add(Configuration.java:249)
        at net.sf.hibernate.cfg.Configuration.addInputStream(Configuration.java:285)
        at net.sf.hibernate.cfg.Configuration.addJar(Configuration.java:393)
        at org.jboss.hibernate.jmx.Hibernate.buildSessionFactory(Hibernate.java:459)
        at org.jboss.hibernate.jmx.Hibernate.startService(Hibernate.java:436)
        at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:271)
        at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:221)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
        at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
        at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
        at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:236)
        at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)
        at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:848)
        at $Proxy0.start(Unknown Source)
        at org.jboss.system.ServiceController.start(ServiceController.java:373)
        at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
        at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
        at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
        at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:236)
        at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)
        at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
        at $Proxy4.start(Unknown Source)
        at org.jboss.deployment.SARDeployer.start(SARDeployer.java:261)
        at org.jboss.deployment.MainDeployer.start(MainDeployer.java:935)
        at org.jboss.deployment.MainDeployer.start(MainDeployer.java:927)