core/src/main/resources/META-INF/cloudstack/system/spring-core-system-context.xml

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<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                      http://www.springframework.org/schema/beans/spring-beans.xsd
                      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
                      http://www.springframework.org/schema/context
                      http://www.springframework.org/schema/context/spring-context.xsd"
                      >

  <!--
    Managed Context
  -->
  <bean id="ManagedContext" class="org.apache.cloudstack.managed.context.impl.DefaultManagedContext" >
    <property name="listeners">
        <list>
            <!-- Put CallContext listener first because it will open and then close a DB connection.
                If you put it after the TransactionContextListener, the thread will hold open a DB 
                connection for the life of the thread -->
            <bean class="org.apache.cloudstack.context.CallContextListener" />
            <bean class="org.apache.cloudstack.context.LogContextListener" />
            <bean class="com.cloud.utils.db.TransactionContextListener" />
        </list>
    </property>
  </bean>
  
  <bean class="org.apache.cloudstack.managed.context.ManagedContextRunnable" factory-method="initializeGlobalContext" 
    autowire-candidate="false" >
    <constructor-arg><ref bean="ManagedContext"/></constructor-arg>
  </bean>

</beans>