ServiceMix + Camel事务生产者

Question

我正在尝试从部署到ServiceMix 5.4.0的Web服务向ActiveMQ队列发送一个消息。出于这个原因，我从camel上下文中获取了一个生成器模板，并按以下方式发送消息：

ProducerTemplate template = camelContext.createProducerTemplate();
template.send(
    "activemq://ExecutePaymentInputQueue",
    new Processor() {
        @Override
        public void process(Exchange exchange) throws Exception {
            exchange.getIn().setBody(
                ...
            );
        }
    }
);

blueprint.xml中的相关部分：

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0"
    xmlns:jpa="http://aries.apache.org/xmlns/jpa/v1.1.0"
    xmlns:tx="http://aries.apache.org/xmlns/transactions/v1.0.0"
    xsi:schemaLocation="
  http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
  http://www.osgi.org/xmlns/blueprint-ext/v1.1.0 https://svn.apache.org/repos/asf/aries/tags/blueprint-0.3.1/blueprint-core/src/main/resources/org/apache/aries/blueprint/ext/blueprint-ext.xsd  
  http://cxf.apache.org/blueprint/jaxws http://cxf.apache.org/schemas/blueprint/jaxws.xsd
  http://cxf.apache.org/blueprint/jaxrs http://cxf.apache.org/schemas/blueprint/jaxrs.xsd
  http://cxf.apache.org/blueprint/core http://cxf.apache.org/schemas/blueprint/core.xsd
  http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd
  ">

    <!-- Transaction manager setup -->
    <reference id="jtaTransactionManager" interface="javax.transaction.TransactionManager"/>

    <bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">
        <argument ref="jtaTransactionManager"/>
    </bean>

    <!-- Transaction policy setup -->
    <bean id="DefaultTransactionPolicy" class="org.apache.camel.spring.spi.SpringTransactionPolicy">
        <property name="transactionManager" ref="transactionManager"/>
    </bean>

    <!-- BEGIN ActiveMQ -->

    <bean id="activemqConnectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory">
        <property name="brokerURL" value="tcp://localhost:61616" />
        <property name="userName" value="smx"/>
        <property name="password" value="smx"/>

        <property name="redeliveryPolicy">
            <bean class="org.apache.activemq.RedeliveryPolicy">
                <property name="maximumRedeliveries" value="360"/>
                <property name="redeliveryDelay" value="10000"/>
            </bean>
        </property>
    </bean>

    <bean id="jmsConfig" class="org.apache.camel.component.jms.JmsConfiguration">
        <property name="connectionFactory" ref="activemqConnectionFactory"/>
        <property name="concurrentConsumers" value="8"/>
        <property name="maxConcurrentConsumers" value="16"/>
        <property name="transactionManager" ref="transactionManager"/>
    </bean>

    <bean id="activemq" class="org.apache.activemq.camel.component.ActiveMQComponent">
        <property name="configuration" ref="jmsConfig" />
    </bean>

    <!-- JMS component setup -->
    <!--<reference id="connectionFactory" interface="javax.jms.ConnectionFactory" />-->

    <!-- END ActiveMQ -->

    <!-- BEGIN SERVICE EXPORTS -->
    <service interface="com.bssys.ebpp.core.api.PaymentService" >
        <bean class="com.bssys.ebpp.core.services.impl.PaymentServiceImpl">
            <tx:transaction method="*" value="Required"/>
        </bean>
    </service>
    <!-- END SERVICE EXPORTS -->

    <camelContext id="camelContext" xmlns="http://camel.apache.org/schema/blueprint"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="http://camel.apache.org/schema/blueprint/camel-blueprint-2.13.2.xsd">

       ...

    </camelContext>

</blueprint>

当发送消息时，应该有一个打开的JTA事务（参见blueprint.xml中的声明性aries配置）。

问题是生产者似乎忽略了jta事务，并且消息被放到该事务之外的目标队列中（紧接在send方法返回之后）。如何更改此行为并使生产者加入JTA事务？