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From Krzysztof Sobkowiak <krzys.sobkow...@gmail.com>
Subject ActiveMQ and Camel 2.17.x on Karaf
Date Wed, 27 Apr 2016 22:27:01 GMT
Hi

I have tried to install activemq-broker-noweb and activemq-camel features (5.13.2, 5.13.3
and current master) with Camel 2.17.0 on Karaf 4.0.5 but with no success:

karaf@root()> feature:repo-add camel 2.17.0
Adding feature url mvn:org.apache.camel.karaf/apache-camel/2.17.0/xml/features
karaf@root()> feature:repo-add activemq 5.13.2
Adding feature url mvn:org.apache.activemq/activemq-karaf/5.13.2/xml/features
karaf@root()> feature:install activemq-broker-noweb
karaf@root()> activemq:list
brokerName = amq-broker

karaf@root()> feature:install activemq-camel
karaf@root()> activemq:list
karaf@root()>

The activemq-osgi bundle is refreshed and and cannot be resolved anymore

There is following entry in log

Caused by: java.lang.ClassNotFoundException: org.apache.xbean.spring.context.v2.XBeanNamespaceHandler
not found by org.apache.activemq.activemq-osgi [61]
    at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1574)[org.apache.felix.framework-5.4.0.jar:]
    at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:79)[org.apache.felix.framework-5.4.0.jar:]
    at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2018)[org.apache.felix.framework-5.4.0.jar:]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)[:1.7.0_80]
    at org.apache.felix.framework.Felix.loadBundleClass(Felix.java:1925)[org.apache.felix.framework-5.4.0.jar:]
    at org.apache.felix.framework.BundleImpl.loadClass(BundleImpl.java:978)[org.apache.felix.framework-5.4.0.jar:]
    at org.springframework.osgi.util.BundleDelegatingClassLoader.findClass(BundleDelegatingClassLoader.java:99)[124:org.springframework.osgi.core:1.2.1]
    ... 36 more

There is a bundle providing this package

karaf@root()> exports | grep org.apache.xbean.spring.context.v2
org.apache.xbean.spring.context.v2                       | 3.18.0                        
    | 91  | org.apache.xbean.spring
org.apache.xbean.spring.context.v2c                      | 3.18.0                        
    | 91  | org.apache.xbean.spring

It looks like activemq-osgi doesn't import this package. But setting dynamic-imports on it
causes further error

Caused by: java.lang.ClassNotFoundException: org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext
not found by org.apache.activemq.activemq-osgi [61]
    at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1574)[org.apache.felix.framework-5.4.0.jar:]
    at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:79)[org.apache.felix.framework-5.4.0.jar:]
    at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2018)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)[:1.7.0_80]
    ... 46 more

There is a bundle providing this package available

karaf@root()> exports | grep org.springframework.osgi.context.support
org.springframework.osgi.context.support                 | 1.2.1                         
    | 124 | org.springframework.osgi.core

One another interesting thing - headers command on activemq-osgi shows following import

org.springframework.osgi.context.support;resolution:=optional;version="[3,5)"

but in ActiveMQ code there is following entry

org.springframework.osgi*;version="[1,4]";resolution:=optional

I think, the range [3,5) is the reason why the package org.springframework.osgi.context.supportcannot
be resolved, because it's provided in version 1.2.1

Do you have any ideas why this problem happens? I think, it's something connected with the
changes in Spring dependencies in Camel 2.17.0

Regards
Krzysztof


-- 
Krzysztof Sobkowiak (@ksobkowiak)

JEE & OSS Architect, Integration Architect
Apache Software Foundation Member (http://apache.org/)
Apache ServiceMix Committer & PMC Member (http://servicemix.apache.org/)
Senior Solution Architect @ Capgemini SSC (http://www.capgeminisoftware.pl/)

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