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Posted to dev@activemq.apache.org by "Volodymyr Buell (JIRA)" <ji...@apache.org> on 2010/10/05 18:42:40 UTC
[jira] Updated: (AMQ-2960) PooledConnectionFactoryBean returns null
in OSGi env sometimes
[ https://issues.apache.org/activemq/browse/AMQ-2960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Volodymyr Buell updated AMQ-2960:
---------------------------------
Attachment: PooledConnectionFactoryBean-lazy-initialization-workaround-for-null.patch
Patch attached
> PooledConnectionFactoryBean returns null in OSGi env sometimes
> --------------------------------------------------------------
>
> Key: AMQ-2960
> URL: https://issues.apache.org/activemq/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
> 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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