This may be trivial, but I seem to continuously run at a wall and can’t find my mistake.
I am extending the Apache James 3 mailserver which used Spring and OpenJPA. I would now like to access a Service class which used a JPA Repository via JMX.
The Service is
@Component
@ManagedResource(objectName = "bean:name=BlacklistServiceImpl", description = "The service providing access to the blacklisted recipients in the DB.")
public class BlacklistServiceImpl implements BlacklistService {
@Autowired
private BlackListRepository blackListRepository;
@Autowired
private ConversationService conversationService;
@Override
@ManagedOperation(description = "Add address to blacklist")
@ManagedOperationParameter(name = "address", description = "Address to add to blacklist.")
public void addAddress(String address) {
//Stuff
}
@Override
@ManagedOperation(description = "Remove address from blacklist")
@ManagedOperationParameter(name = "address", description = "Address to remove from blacklist.")
public void removeAddress(String address) {
//Stuff
}
}
and I have added to following to my context:
<bean id="mailserverBeansExporter" class="org.springframework.jmx.export.annotation.AnnotationMBeanExporter">
<property name="beans">
<map>
<entry key="bean:name=BlacklistServiceImpl">
<bean class="<snip>.services.blacklist.impl.BlacklistServiceImpl"/>
</entry>
</map>
</property>
</bean>
While I have managed to build this, James crashes at startup with the following exception:
[INFO] Starting Apache James Server...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error creating bean with name 'blacklistServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.B
eanCreationException: Could not autowire field: private <snip>.core.repositories.blacklist.BlackListRepository <snip>.service
s.blacklist.impl.BlacklistServiceImpl.blackListRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean
of type [<snip>.repositories.blacklist.BlackListRepository] found for dependency: expected at least 1 bean which qualifies as autowire cand
idate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'blacklistServiceImpl': Injection of autowired dependencies failed; neste
d exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private <snip>.repositories.blacklist.Blac
kListRepository <snip>.services.blacklist.impl.BlacklistServiceImpl.blackListRepository; nested exception is org.springframework.beans.facto
ry.NoSuchBeanDefinitionException: No matching bean of type [<snip>.repositories.blacklist.BlackListRepository] found for dependency: expecte
d at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(re
quired=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java
:285)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1074)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private <snip>.repositories.blacklist.BlackLis
tRepository <snip>.services.blacklist.impl.BlacklistServiceImpl.blackListRepository; nested exception is org.springframework.beans.factory.N
oSuchBeanDefinitionException: No matching bean of type [<snip>.repositories.blacklist.BlackListRepository] found for dependency: expected at
least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(requir
ed=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.j
ava:502)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java
:282)
... 33 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [<snip>.repositories.blacklist.BlackLis
tRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframe
work.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:920)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:789)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:703)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.j
ava:474)
... 35 more
The BlackListRepository has two implementations: the JPABlackListRepository and the InMemoryBlackListRepository, which is used for unit testing. I tried to solve the problem by adding
<bean id="BlackListRepository" class="<snip>.JPABlackListRepository" />
to the common-context, but this lead to the unit tests failing as now the in memory implementation wasn’t used anymore.
I would appreciate any help.
Update:
While debugging (and thanks to the comment below) I realized that only removing BOTH the @Component and @Managed* annotations as well as the section
<bean id="mailserverBeansExporter" class="org.springframework.jmx.export.annotation.AnnotationMBeanExporter">
<property name="beans">
<map>
<entry key="bean:name=BlacklistServiceImpl">
<bean class="at.willhaben.safe.sms.core.services.blacklist.impl.BlacklistServiceImpl"/>
</entry>
</map>
</property>
</bean>
leads to a clean startup. Obviously then JMX doesn’t work, but leaving any of those statements in the code leads to above exception.
Like the other comments have noted, the exception is not really related to JMX then – the issue seems to be that a dependency is not being found.
You have mentioned that when you explicitly pass in a repository this way:
<bean id="BlackListRepository" class="<snip>.JPABlackListRepository" />then it works, if that is the case, you can selectively override it for tests alone, create a test application context:
test-applicationcontext.xmlThis will ensure that InMemoryBlackLIstRespository is the one injected.
Also to expose your service bean over Jmx: