<!-- Commpany -->
<hibernate-mapping>
    <class name="manager.Company" table="empresa">
      <id name="cnpj" column="cnpj">
         <generator class="assigned"/>
      </id>
      <property name="name" column="nome"/>
      <property name="corporateName" column="razao_social"/>
      <property name="address" column="logradouro"/>
      <property name="number" column="numero"/>
      <property name="complement" column="complemento"/>
      <property name="burgh" column="bairro"/>
        <many-to-one name="city" column="id_cidade"
         class="manager.City"/>
         <one-to-one name="transactionTax" class="transaction.TransactionTax"
            constrained="false" outer-join="true"/>
        <bag name="monthlyFees" inverse="true" lazy="false">
         <key column="cnpj"/>
         <one-to-many class="access.MonthlyFee"/>
        </bag>
    </class>
</hibernate-mapping>


<!-- transactionTax -->

<hibernate-mapping>
    <class name="transaction.TransactionTax" table="transacao_taxa">
        <id name="cnpj" column="cnpj">
           <generator class="foreign">
              <param name="property">company</param>
           </generator>
         </id>
         <one-to-one constrained="true" outer-join="false" name="company"
            class="manager.Company"/>
        <property name="fgTransactionTax" column="fg_transacao_taxa"/>
        <property name="value" column="valor"/>
        <property name="percentage" column="porcentagem"/>
        <property name="limit" column="limite"/>
    </class>
</hibernate-mapping>


<!-- monthlyFees -->

<hibernate-mapping>
    <class name="access.MonthlyFee" table="mensalidade">
      <id name="idMonthlyFee" column="id_mensalidade">
         <generator class="assigned"/>
      </id>
        <many-to-one name="company" column="cnpj"
           class="manager.Company"/>
      <many-to-one name="expirationDay" column="id_dia_vencimento"
         class="access.ExpirationDay"/>
        <property name="value" column="valor"/>
      <many-to-one name="monthlyFeeStatus" column="id_mensalidade_status"
         class="access.MonthlyFeeStatus"/>
      <many-to-one name="companyStatus" column="id_empresa_status"
         class="manager.CompanyStatus"/>     
        <property name="dtPayment" column="dt_pagamento"/>
        <property name="dtExpiration" column="dt_vencimento"/>
      <property name="tpCharge" column="tp_cobranca"/>
      <property name="agency" column="agencia"/>
      <property name="cdCustomer" column="cd_cliente"/>
      <property name="dtGeneration" column="dt_geracao"/>      
      <bag name="parcels" inverse="true" lazy="false">
         <key column="id_mensalidade"/>
         <one-to-many class="trip.Parcel"/>
        </bag>       
      <bag name="tolls" inverse="true" lazy="false">
         <key column="id_mensalidade"/>
         <one-to-many class="trip.Toll"/>
        </bag>       
    </class>
</hibernate-mapping>

            session = dataSource.openSession();
            tx = session.beginTransaction();

         // --- inserts the company ---
         dataSource.insert(company, session);
         
         // --- inserts the unique Monthlyfee from the list ---
         MonthlyFee monthlyFee = (MonthlyFee) company.getMonthlyFees().get(0);
         
         dataSource.insert(monthlyFee, session);

         // --- inserts the transaction tax ---
         TransactionTax transactionTax = company.getTransactionTax();
         
         dataSource.insert(transactionTax, session);

net.sf.hibernate.HibernateException: Found shared references to a collection

2005-01-26 09:18:46,031 - INFO STDOUT - Hibernate: insert into empresa (nome, razao_social, logradouro, numero, complemento, bairro, id_cidade, cnpj) values (?, ?, ?, ?, ?, ?, ?, ?)