| interface org.springframework.aop.SpringProxy is not visible from class loader [message #724213] |
Sun, 11 September 2011 13:25  |
 Branden Visser
Messages: 5
Registered: September 2011 |
Junior Member |
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Hi Everyone,
I'm converting a couple spring projects to run in an OSGi container and decided to use Eclipse Gemini, what a great tool!
I've run into a problem though, which maybe has to do with using annotation-driven transactions. Here is the stack-trace:
10.09.2011 23:36:27.704 *ERROR* [EclipseGeminiBlueprintExtenderThread-4] org.eclipse.gemini.blueprint.extender.internal.activator.ContextLoaderListener Application context refresh failed (OsgiBundleXmlApplicationContext(bundle=com.filterengine.client, config=osgibundle:/META-INF/spring/*.xml)) org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.filterengine.entity.api.EntityDao' defined in URL [bundle://106.0:0/META-INF/spring/dao-context.xml]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: interface org.springframework.aop.SpringProxy is not visible from class loader
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationContext.java:60)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:325)
at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:290)
at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:137)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IllegalArgumentException: interface org.springframework.aop.SpringProxy is not visible from class loader
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:353)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:581)
at org.springframework.aop.framework.JdkDynamicAopProxy.getProxy(JdkDynamicAopProxy.java:117)
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:112)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:476)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:362)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:407)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1426)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
... 13 more
10.09.2011 23:36:27.706 *INFO* [EclipseGeminiBlueprintExtenderThread-4] org.eclipse.gemini.blueprint.context.support.OsgiBundleXmlApplicationContext Application Context service already unpublished
10.09.2011 23:36:27.706 *INFO* [EclipseGeminiBlueprintExtenderThread-4] org.eclipse.gemini.blueprint.extender.internal.activator.ContextLoaderListener Application context succesfully closed (OsgiBundleXmlApplicationContext(bundle=com.filterengine.client, config=osgibundle:/META-INF/spring/*.xml))
10.09.2011 23:36:27.706 *ERROR* [EclipseGeminiBlueprintExtenderThread-4] org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor Unable to create application context for [com.filterengine.client], unsatisfied dependencies: none org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.filterengine.entity.api.EntityDao' defined in URL [bundle://106.0:0/META-INF/spring/dao-context.xml]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: interface org.springframework.aop.SpringProxy is not visible from class loader
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationContext.java:60)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:325)
at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:290)
at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:137)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IllegalArgumentException: interface org.springframework.aop.SpringProxy is not visible from class loader
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:353)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:581)
at org.springframework.aop.framework.JdkDynamicAopProxy.getProxy(JdkDynamicAopProxy.java:117)
at org.springframework.aop.framework.ProxyFactory.getProxy(ProxyFactory.java:112)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.createProxy(AbstractAutoProxyCreator.java:476)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:362)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:407)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1426)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
... 13 more
This is how I declare my transaction support:
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="javax.sql.DataSource" />
</bean>
<tx:annotation-driven transaction-manager="txManager"/>
This is how my bean is created:
<bean id="com.filterengine.entity.api.EntityDao"
class="com.filterengine.entity.impl.SpringJdbcEntityDaoImpl"
init-method="init">
<property name="dataSource" ref="javax.sql.DataSource" />
<property name="sqlManager" ref="com.filterengine.sql.SqlManager" />
<property name="ddlService" ref="ca.mrvisser.dynamicdb.api.DdlService" />
<property name="ddbSupport" ref="com.filterengine.data.impl.DynamicDBSupport" />
</bean>
And finally, in the EntityDao bean, the "ddlService" property is actually an external service registered in the context:
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans ...>
<reference id="ca.mrvisser.dynamicdb.api.DdlService" interface="ca.mrvisser.dynamicdb.api.DdlService" availability="mandatory"/>
<reference id="ca.mrvisser.dynamicdb.api.DmlService" interface="ca.mrvisser.dynamicdb.api.DmlService" availability="mandatory"/>
</beans:beans>
I do have another bundle (the "dynamicdb" bundle that this one references) that starts up using transaction annotations without any trouble, however this one is having problems, which is maybe due to trying to inject service references?
Also, Spring AOP is installed in my OSGi container, but when I install this bundle, it doesn't appear to import those packages -- not sure if that is the problem..
Have I done something wrong here? Any help is greatly appreciated!
Thanks,
Branden
[Updated on: Sun, 11 September 2011 13:28] Report message to a moderator |
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| Re: interface org.springframework.aop.SpringProxy is not visible from class loader [message #729278 is a reply to message #729263] |
Sun, 25 September 2011 18:01  |
Branden Visser
Messages: 5
Registered: September 2011 |
Junior Member |
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Ok, so I think I've solved this.
The problem seems to be that the manifest generator isn't including some of the indirect dependencies. In this case org.springframework.aop, org.springframework.aop.framework and org.aopalliance.aop. I couldn't seem to get blueprint to generate the import for any of those unless I created a fake bean in my application context that instantiates a class from those packages. Example being:
<bean id="proxy" class="org.springframework.aop.SpringProxy" />
Then this leads to other obvious problems. Trying to set the scope of the maven dependency to "runtime" didn't seem to have any impact either.
What I ended up doing was copying the list of imports generated by blueprint, and sticking them in the maven-bundle-plugin Import-Package definition, then add the ones that blueprint refused to generate. Example:
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<extensions>true</extensions>
<version>2.0.1</version>
<configuration>
<instructions>
<Import-Package>
...
org.aopalliance.aop,
org.springframework.aop,
org.springframework.aop.framework,
...
</Import-Package>
</instructions>
</configuration>
</plugin>
Where "..." is replaced by whatever other imports blueprint had generated. Adding these 3 was a trial an error process. Add one, then deploy and check for the next error. Add another, then deploy and check for the next error.
So, maybe there is room to improve blueprint's abilities to detect runtime dependencies, or possibly a way for a user to add additional ones (e.g., blueprint could detect user-added Import-Package entries in the MANIFEST, and could gracefully merge).
Hope this helps someone!
Branden
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