Expected single matching bean but found 2 : NoUniqueBeanDefinitionException

[rahilbr]

//Interface

public interface CronService 
{

public void reschedule();

}

// class

@ExportAsService

@Component
@Named("CronServiceImpl")
public class CronServiceImpl implements CronService,LifecycleAware
{

static final String KEY = CronServiceImpl.class.getName() + ":instance";
private static final String JOB_NAME = CronServiceImpl.class.getName() + ":job";

@ComponentImport
private final PluginScheduler pluginScheduler;
@ComponentImport
protected final CustomFieldManager customFieldManager;
@ComponentImport
protected final FieldScreenManager fieldScreenManager;
private static final Logger log = LoggerFactory.getLogger(CronServiceImpl.class);

@Inject
public CronServiceImpl(final PluginScheduler pluginScheduler,final CustomFieldManager customFieldManager,final FieldScreenManager fieldScreenManager)
{
this.pluginScheduler = pluginScheduler;
this.customFieldManager = customFieldManager;
this.fieldScreenManager = fieldScreenManager;
}

public void reschedule()
{
// implementation
}

}

//Servlet
@Scanned
public class AdminServlet extends javax.servlet.http.HttpServlet
{

private static final Logger log;
@ComponentImport
private final UserManager userManager;
@ComponentImport
private final LoginUriProvider loginUriProvider;
@ComponentImport
private final TemplateRenderer templateRenderer;
@ComponentImport
private final PluginSettingsFactory pluginSettingsFactory;

private CronService cronService;

static
{
        log = LoggerFactory.getLogger(AdminServlet.class);
}

@Inject
public AdminServlet(UserManager userManager, LoginUriProvider loginUriProvider,TemplateRenderer templateRenderer, PluginSettingsFactory pluginSettingsFactory,CronService cronService)
{
super();
this.userManager = userManager;
this.loginUriProvider = loginUriProvider;
this.templateRenderer = templateRenderer;
this.pluginSettingsFactory = pluginSettingsFactory;
this.cronService=cronService;

}

@Override
public void doGet(HttpServletRequest req, HttpServletResponse response) throws IOException, ServletException
{

}

@Override
public void doPost(HttpServletRequest req, HttpServletResponse response) throws IOException, ServletException
{

try
{
     cronService.reschedule();
}

catch(Exception e)
{

//

}

}

}

//error

[INFO] [talledLocalContainer] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334)
[INFO] [talledLocalContainer] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1210)
[INFO] [talledLocalContainer] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
[INFO] [talledLocalContainer] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
[INFO] [talledLocalContainer] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:342)
[INFO] [talledLocalContainer] ... 1 filtered
[INFO] [talledLocalContainer] at java.lang.reflect.Method.invoke(Method.java:498)
[INFO] [talledLocalContainer] at com.atlassian.plugin.osgi.spring.DefaultSpringContainerAccessor.createBean(DefaultSpringContainerAccessor.java:97)
[INFO] [talledLocalContainer] at com.atlassian.plugin.module.ClassPrefixModuleFactory.createModule(ClassPrefixModuleFactory.java:35)
[INFO] [talledLocalContainer] at com.atlassian.plugin.module.PrefixDelegatingModuleFactory.createModule(PrefixDelegatingModuleFactory.java:88)
[INFO] [talledLocalContainer] at com.atlassian.plugin.servlet.descriptors.ServletModuleDescriptor.getModule(ServletModuleDescriptor.java:43)
[INFO] [talledLocalContainer] at com.atlassian.plugin.servlet.DelegatingPluginServlet.<init>(DelegatingPluginServlet.java:30)
[INFO] [talledLocalContainer] at com.atlassian.plugin.servlet.DefaultServletModuleManager$LazyLoadedServletReference.create(DefaultServletModuleManager.java:472)
[INFO] [talledLocalContainer] at com.atlassian.plugin.servlet.DefaultServletModuleManager$LazyLoadedServletReference.create(DefaultServletModuleManager.java:456)
[INFO] [talledLocalContainer] at com.atlassian.util.concurrent.LazyReference$Sync.run(LazyReference.java:325)
[INFO] [talledLocalContainer] at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:143)
[INFO] [talledLocalContainer] ... 240 more
[INFO] [talledLocalContainer] Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.jira.plugin.snIntegrationPlugin.service.integration.CronService com.jira.plugin.snIntegrationPlugin.servlet.AdminServlet1.cronService; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [com.jira.plugin.snIntegrationPlugin.service.integration.CronService] is defined: expected single matching bean but found 2: CronServiceImpl,cronServiceImpl
[INFO] [talledLocalContainer] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561)
[INFO] [talledLocalContainer] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
[INFO] [talledLocalContainer] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331)
[INFO] [talledLocalContainer] ... 256 more
[INFO] [talledLocalContainer] Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [com.jira.plugin.snIntegrationPlugin.service.integration.CronService] is defined: expected single matching bean but found 2: CronServiceImpl,cronServiceImpl
[INFO] [talledLocalContainer] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:942)
[INFO] [talledLocalContainer] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533)
[INFO] [talledLocalContainer] ... 258 more

Thanks in advance..

[Guilherme Nogueira]

Check this documentation:

https://bitbucket.org/atlassian/atlassian-spring-scanner