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https://issues.apache.org/jira/browse/CAMEL-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13093519#comment-13093519
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Claus Ibsen commented on CAMEL-4213:
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A patch is of course welcome, but an osgi blueprint unit tests in
camel-itest-osgi would be great.
> camel-jpa can't find entities when using blueprint in OSGi
> ----------------------------------------------------------
>
> Key: CAMEL-4213
> URL: https://issues.apache.org/jira/browse/CAMEL-4213
> Project: Camel
> Issue Type: Bug
> Components: camel-jpa, osgi
> Affects Versions: 2.7.2
> Environment: Apache Karaf 2.2.2
> Reporter: Jonas Bengtsson
> Fix For: 2.9.0
>
>
> When using the following simple route, the entity classes can't be found:
> {code}
> public void configure() throws Exception {
> from("direct:test-in").to("jpa:mypackage.MyEntity1");
> from("jpa:mypackage.MyEntity2").to("log:test-out");
> }
> {code}
> The error message is:
> 09:43:55,417 | WARN | rint Extender: 3 | ObjectHelper |
> g.apache.camel.util.ObjectHelper 698 | 78 - org.apache.camel.camel-core -
> 2.7.2 | Cannot find class: mypackage.MyEntity1
> 09:43:55,467 | WARN | rint Extender: 3 | ObjectHelper |
> g.apache.camel.util.ObjectHelper 698 | 78 - org.apache.camel.camel-core -
> 2.7.2 | Cannot find class: mypackage.MyEntity2
> followed by many warnings about that the entityType is not known for the
> consumer.
> The errors only occur when using blueprint to bootstrap the route. When using
> spring-dm everything works fine. The entity classes are located in the same
> bundle as the route. My guess is that it uses the wrong classloader.
> JPA works fine otherwise. It is only the camel-jpa component I have problems
> with. camel-jpa is a very spring-centric module, using a spring
> TransactionManager and all, so I hope that my use case makes sense.
> For completeness here is my blueprint-file:
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0";
> default-activation="eager"
> xmlns:jpa="http://aries.apache.org/xmlns/jpa/v1.1.0";>
> <camelContext xmlns="http://camel.apache.org/schema/blueprint";>
> <package>mypackage</package>
> </camelContext>
> <bean id="jpa" class="org.apache.camel.component.jpa.JpaComponent">
> <property name="entityManagerFactory"
> ref="entityManagerFactory" />
> <property name="transactionManager" ref="transactionManager" />
> </bean>
> <bean id="transactionManager"
> class="org.springframework.orm.jpa.JpaTransactionManager">
> <property name="entityManagerFactory"
> ref="entityManagerFactory" />
> </bean>
> <reference id="entityManagerFactory"
> interface="javax.persistence.EntityManagerFactory"
> filter="(osgi.unit.name=myunit)" />
> </blueprint>
> {code}
> The EntityManagerFactory is created by Aries Jpa, but it shouldn't be
> relevant for the question.
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