Same DAO is injected at mutiple places in the same bean ( nested beans )

[omb10]

Hello, I have the following

<bean id="abcManager" parent="TxProxyTemplate">
    <property name="target">
        <bean class="com.x.y.AbcManagerImpl">
          <property name="abcDAO" ref="abcDAO"/>
          <property name="xyzManager" ref="xyzManager"/>
        </bean>
    </property>
</bean>

<bean id="xyzManager" parent="TxProxyTemplate">
    <property name="target">
        <bean class="com.x.y.XyzManagerImpl">
          <property name="abcDAO" ref="abcDAO"/>
          <property name="anotherManager" ref="anotherManager"/>
        </bean>
    </property>
</bean>

<bean id="anotherManager" parent="TxProxyTemplate">
    <property name="target">
      <bean class="com.x.y.AnotherManagerImpl">
        <property name="abcDAO" ref="abcDAO"/>
        <property name="oneMoreManager" ref="oneMoreManager"/>
      </bean>
    </property>
</bean>

What is the issue with the following configuration? will having the same DAO at the different levels cause concurency issues?

What would be a typical fix for the nested transactions issue?

We found out that we get lots of weblogic connection releases when we have high load.

is this because y

We use Hibernate for DAO operations.