Class of an osgi:service defined in a spring config file cannot be instantiated
by Spring CGLIB classes
-------------------------------------------------------------------------------------------------------
Key: SMX4-248
URL: https://issues.apache.org/activemq/browse/SMX4-248
Project: ServiceMix 4
Issue Type: Bug
Reporter: Charles Moulliard
This error is generated :
s...@root:/> Exception in thread "SpringOsgiExtenderThread-14"
org.springframework.beans.factory.BeanCreationException: Error creating bean
with name '
activemq': FactoryBean threw exception on object creation; nested exception is
java.lang.NoClassDefFoundError: org/springframework/core/task/TaskExecu
tor
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport$1.run(FactoryBeanRegistrySupport.java:127)
at java.security.AccessController.doPrivileged(Native Method)
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116)
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:91)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1288)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:217)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:425)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at
org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationCont
ext.java:68)
at
org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.ja
va:343)
at
org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
at
org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplication
Context.java:308)
at
org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(Dependen
cyWaiterApplicationContextExecutor.java:138)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NoClassDefFoundError:
org/springframework/core/task/TaskExecutor
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2395)
at java.lang.Class.getDeclaredMethod(Class.java:1907)
at net.sf.cglib.proxy.Enhancer.getCallbacksSetter(Enhancer.java:627)
at net.sf.cglib.proxy.Enhancer.setCallbacksHelper(Enhancer.java:615)
at net.sf.cglib.proxy.Enhancer.setThreadCallbacks(Enhancer.java:609)
at net.sf.cglib.proxy.Enhancer.createUsingReflection(Enhancer.java:631)
at net.sf.cglib.proxy.Enhancer.firstInstance(Enhancer.java:538)
at
net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:225)
at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377)
at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:285)
at
org.springframework.aop.framework.Cglib2AopProxy.getProxy(Cglib2AopProxy.java:201)
at
org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:110)
at
org.springframework.osgi.service.util.internal.aop.ProxyUtils$1.run(ProxyUtils.java:65)
at java.security.AccessController.doPrivileged(Native Method)
at
org.springframework.osgi.service.util.internal.aop.ProxyUtils.createProxy(ProxyUtils.java:62)
at
org.springframework.osgi.service.util.internal.aop.ProxyUtils.createProxy(ProxyUtils.java:39)
at
org.springframework.osgi.service.importer.support.AbstractServiceProxyCreator.createServiceProxy(AbstractServiceProxyCreator.java:107)
at
org.springframework.osgi.service.importer.support.OsgiServiceProxyFactoryBean.createProxy(OsgiServiceProxyFactoryBean.java:185)
at
org.springframework.osgi.service.importer.support.AbstractServiceImporterProxyFactoryBean.getObject(AbstractServiceImporterProxyFactoryBean
.java:86)
at
org.springframework.osgi.service.importer.support.OsgiServiceProxyFactoryBean.getObject(OsgiServiceProxyFactoryBean.java:141)
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport$1.run(FactoryBeanRegistrySupport.java:121)
... 15 more
When an interface is not declared (which is the case here because we would like
to export the class : org.apache.activemq.camel.component.ActiveMQComponent),
then Spring uses CGLIB. What we see here is that CGLIB does not find spring
core classes (which are deployed as bundle in SMX4 - Spring )
Here is the spring xml file
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:osgi="http://www.springframework.org/schema/osgi";
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/osgi
http://www.springframework.org/schema/osgi/spring-osgi.xsd
http://camel.apache.org/schema/spring
http://camel.apache.org/schema/spring/camel-spring.xsd";>
<bean id="activemq"
class="org.apache.activemq.camel.component.ActiveMQComponent">
<property name="brokerURL"
value="tcp://localhost:61616" />
</bean>
<osgi:service id="activemqservice" ref="activemq"
auto-export="all-classes"/>
</beans>
and spring osgi bundles
s...@root:osgi> list |grep Spring
ID State Spring Level Name
[ 21] [Active ] [ ] [ 30] Spring Context (2.5.6)
[ 25] [Active ] [ ] [ 30] Spring Core (2.5.6)
[ 30] [Active ] [ ] [ 30] Spring Beans (2.5.6)
[ 38] [Active ] [ ] [ 30] Spring AOP (2.5.6)
[ 39] [Active ] [Started] [ 30] Apache ServiceMix Kernel :: Spring
Deployer (1.1.0.SNAPSHOT)
[ 48] [Active ] [ ] [ 60] Spring Transaction (2.5.6)
[ 52] [Active ] [ ] [ 60] Spring JMS (2.5.6)
s...@root:osgi> list |grep spring
[ 16] [Active ] [ ] [ 30] spring-osgi-io (1.2.0.m2)
[ 34] [Active ] [ ] [ 30] spring-osgi-extender (1.2.0.m2)
[ 41] [Active ] [ ] [ 30] spring-osgi-core (1.2.0.m2)
[ 49] [Active ] [ ] [ 60] camel-spring (2.0.0.SNAPSHOT)
[ 91] [Active ] [ ] [ 60] xbean-spring (3.4.3)
[ 108] [Active ] [ ] [ 60] Apache ServiceMix Bundles: cglib-2.1.3
(2.1.3)
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