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https://issues.apache.org/jira/browse/AMQ-2960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hadrian Zbarcea updated AMQ-2960:
---------------------------------
Fix Version/s: 5.9.1
> PooledConnectionFactoryBean returns null in OSGi env sometimes
> --------------------------------------------------------------
>
> Key: AMQ-2960
> URL: https://issues.apache.org/jira/browse/AMQ-2960
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Environment: ServiceMix-4.2.0-fuse-02-00, spring-osgi 1.2.1, spring
> 2.5.6.SEC02
> Reporter: Volodymyr Buell
> Assignee: Claus Ibsen
> Fix For: 5.9.1, 5.10.0
>
> Attachments:
> PooledConnectionFactoryBean-lazy-initialization-workaround-for-null.patch
>
>
> From time to time PooledConnectionFactoryBean failed to initialize itself
> correctly in ServiceMix 4 (FUSE actually). From activemq-broker.xml:
> Exception in thread "SpringOsgiExtenderThread-20"
> org.springframework.beans.factory.BeanCreationException: Error creating bean
> with name 'pooledConnectionFactory' defined in URL
> [bundleentry://110.fwk173823/META-INF/spring/activemq-broker.xml]:
> factory-bean 'pooledConnectionFactoryFactory' returned null
> at
> org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:289)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:903)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:817)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
> at
> org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
> at
> org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
> at
> org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
> 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:429)
> at
> org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
> at
> org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationContext.java:69)
> at
> org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:355)
> at
> org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
> at
> org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:320)
> at
> org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:132)
> at java.lang.Thread.run(Thread.java:619)
> The problem is that Spring sometimes invokes @PreConstruct *AFTER* the
> getObject() has been used for dependent beans constructing. Therefore
> PooledConnectionFactoryBean.getObject() returns null.
> Lazy initialization is fixing this issue:
> public Object getObject() throws Exception {
> if (pooledConnectionFactory == null)
> {
> afterPropertiesSet();
> }
> return pooledConnectionFactory;
> }
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