Camel hang while using camel-JPA with split under transaction

    <camelContext id="animal" xmlns="http://camel.apache.org/schema/spring">
        <route id="split-jpa-test">
            <from id="_from1" uri="direct:split-jpa-test"/>
            <transacted id="_transacted1"/>
            <split id="_split1" parallelAggregate="false"
                parallelProcessing="false" shareUnitOfWork="true" streaming="false">
                <xpath>//records/record</xpath>
                <log id="_log1" message="${body}"/>
                <process id="_process1" ref="generateOrder"/>
                <to id="_to1" uri="jpa:entityType"/>
            </split>
        </route>
    </camelContext>

10:20:31.076 [main] INFO  o.a.camel.spring.SpringCamelContext - Total 1 routes, of which 1 are started
10:20:31.077 [main] INFO  o.a.camel.spring.SpringCamelContext - Apache Camel 2.23.2.fuse-7_10_0-00020-redhat-00001 (CamelContext: MyCamel) started in 0.376 seconds
10:20:31.158 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Creating new transaction with name [null]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT
10:20:31.159 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Opened new EntityManager [SessionImpl(90646816<open>)] for JPA transaction
10:20:31.162 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Exposing JPA transaction as JDBC [org.springframework.orm.jpa.vendor.HibernateJpaDialect$HibernateConnectionHandle@5068a2b1]
10:20:31.168 [main] INFO  o.a.camel.builder.xml.XPathBuilder - Created default XPathFactory com.sun.org.apache.xpath.internal.jaxp.XPathFactoryImpl@6142b9dd
10:20:31.217 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Found thread-bound EntityManager [SessionImpl(90646816<open>)] for JPA transaction
10:20:31.217 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Participating in existing transaction
10:20:31.269 [main] INFO  split-jpa-test - <record id="1"><value>1</value></record>
10:20:31.272 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Found thread-bound EntityManager [SessionImpl(90646816<open>)] for JPA transaction
10:20:31.272 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Participating in existing transaction
10:20:31.301 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Found thread-bound EntityManager [SessionImpl(90646816<open>)] for JPA transaction
10:20:31.301 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Participating in existing transaction
10:20:31.302 [main] INFO  split-jpa-test - <record id="2"><value>2</value></record>
10:20:31.302 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Found thread-bound EntityManager [SessionImpl(90646816<open>)] for JPA transaction
10:20:31.302 [main] DEBUG o.s.orm.jpa.JpaTransactionManager - Participating in existing transaction