title: Spring FactoryBean and autowiring not working : expected single matching bean but found 2
body: <p>I have two classes, each one autowiring the same class through a factory :</p>
  
  <pre><code>@Service
  public class AnalyseDispensationNominativeMetierService implements IAnalyseDispensationNominativeMetierService {
  
    @Autowired
    @Qualifier("interfaceAutomateServiceFactory")
    private IInterfaceAutomateMetierService interfaceAutomateMetierService;
    [...]
  
  
  @Service
  public class AnalysePreparationGlobaleMetierService implements IAnalysePreparationGlobaleMetierService {
  
    @Autowired
    @Qualifier("interfaceAutomateServiceFactory")
    private IInterfaceAutomateMetierService interfaceAutomateMetierService;
    [...]
  </code></pre>
  
  <hr>
  
  <p>The object I want to create through the factory :</p>
  
  <pre><code>@Service
  public class InterfaceAutomate implements IInterfaceAutomateMetierService {
  [...]
  </code></pre>
  
  <hr>
  
  <p>The factory :</p>
  
  <pre><code>@Service("interfaceAutomateServiceFactory")
  public class InterfaceAutomateServiceFactory implements FactoryBean&lt;IInterfaceAutomateMetierService&gt; {
  
    @Autowired(required = true)
    private InterfaceAutomate ijinInterfaceAutomate;
  
    @Override
    public IInterfaceAutomateMetierService getObject() {
      return ijinInterfaceAutomate;
    }
  
    @Override
    public Class&lt;?&gt; getObjectType() {
      return IInterfaceAutomateMetierService.class;
    }
  
    @Override
    public boolean isSingleton() {
      return false;
    }
  </code></pre>
  
  <hr>
  
  <p>I keep getting the following error, even though I'm using qualifier annotation... Any idea on what I'm doing wrong ? :</p>
  
  <pre><code>No unique bean of type [IInterfaceAutomateMetierService] is defined: expected single matching bean but found 2: [interfaceAutomate, interfaceAutomateServiceFactory]
  </code></pre>
  
  <hr>
  
  <p>Complete stack trace</p>
  
  <pre><code>GRAVE: Exception lors de l'envoi de l'évènement contexte initialisé (context initialized) à l'instance de classe d'écoute (listener) org.springframework.web.context.ContextLoaderListener
  org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'analysePreparationGlobaleMetierService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private dispensation.commun.service.metier.IInterfaceAutomateMetierService dispensation.analysePreparationGlobale.service.metier.impl.AnalysePreparationGlobaleMetierService.interfaceAutomateMetierService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [dispensation.commun.service.metier.IInterfaceAutomateMetierService] is defined: expected single matching bean but found 2: [interfaceAutomate, interfaceAutomateServiceFactory]
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
      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:294)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607)
      at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:925)
      at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:472)
      at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:388)
      at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:293)
      at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
      at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
      at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
      at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
      at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private dispensation.commun.service.metier.IInterfaceAutomateMetierService dispensation.analysePreparationGlobale.service.metier.impl.AnalysePreparationGlobaleMetierService.interfaceAutomateMetierService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [dispensation.commun.service.metier.IInterfaceAutomateMetierService] is defined: expected single matching bean but found 2: [interfaceAutomate, interfaceAutomateServiceFactory]
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:513)
      at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:92)
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
      ... 20 more
  Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [dispensation.commun.service.metier.IInterfaceAutomateMetierService] is defined: expected single matching bean but found 2: [interfaceAutomate, interfaceAutomateServiceFactory]
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:823)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:730)
      at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:485)
      ... 22 more
  </code></pre>