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https://issues.apache.org/jira/browse/CAMEL-6699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13756140#comment-13756140
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Claus Ibsen commented on CAMEL-6699:
------------------------------------

Ah there was still a bug in camel-core-xml which I have fixed. Though it may be 
a common mistake for end users to expose a route builder as osgi service using 
its class name, I made that mistake at first. 
                
> camel-blueprint - Using routeContextRef to refer to a RouteBuilder in another 
> bundle causes ClassCastException
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-6699
>                 URL: https://issues.apache.org/jira/browse/CAMEL-6699
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-blueprint
>    Affects Versions: 2.11.0
>            Reporter: Claus Ibsen
>            Assignee: Claus Ibsen
>             Fix For: 2.10.7, 2.11.2, 2.12.0
>
>
> See
> http://camel.465427.n5.nabble.com/Referencing-OSGi-services-with-RouteBuilder-classes-for-use-in-CamelContext-tp5734660.html
> I can reproduce with stacktrace
> {code}
> Caused by: java.lang.ClassCastException: 
> Proxyfdf03102_b8fa_4caf_b44c_fa565998bb6e cannot be cast to 
> org.apache.camel.builder.RouteBuilder
>       at 
> org.apache.camel.model.RouteBuilderDefinition.createRouteBuilder(RouteBuilderDefinition.java:64)
>       at 
> org.apache.camel.core.xml.AbstractCamelContextFactoryBean.installRoutes(AbstractCamelContextFactoryBean.java:727)
>       at 
> org.apache.camel.core.xml.AbstractCamelContextFactoryBean.setupRoutes(AbstractCamelContextFactoryBean.java:299)
>       at 
> org.apache.camel.blueprint.CamelContextFactoryBean.afterPropertiesSet(CamelContextFactoryBean.java:300)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method)[:1.7.0_25]
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)[:1.7.0_25]
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.7.0_25]
>       at java.lang.reflect.Method.invoke(Method.java:606)[:1.7.0_25]
>       at 
> org.apache.aries.blueprint.utils.ReflectionUtils.invoke(ReflectionUtils.java:297)[7:org.apache.aries.blueprint.core:1.1.0]
>       at 
> org.apache.aries.blueprint.container.BeanRecipe.invoke(BeanRecipe.java:958)[7:org.apache.aries.blueprint.core:1.1.0]
>       at 
> org.apache.aries.blueprint.container.BeanRecipe.runBeanProcInit(BeanRecipe.java:712)[7:org.apache.aries.blueprint.core:1.1.0]
>       ... 40 more
> {code}

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