java - Spring FactoryBean and autowiring not working : expected single matching bean but found 2 -

i have 2 classes, each 1 autowiring same class through factory :

@service public class analysedispensationnominativemetierservice implements ianalysedispensationnominativemetierservice {    @autowired   @qualifier("interfaceautomateservicefactory")   private iinterfaceautomatemetierservice interfaceautomatemetierservice;   [...]   @service public class analysepreparationglobalemetierservice implements ianalysepreparationglobalemetierservice {    @autowired   @qualifier("interfaceautomateservicefactory")   private iinterfaceautomatemetierservice interfaceautomatemetierservice;   [...] 

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the object want create through factory :

@service public class interfaceautomate implements iinterfaceautomatemetierservice { [...] 

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the factory :

@service("interfaceautomateservicefactory") public class interfaceautomateservicefactory implements factorybean<iinterfaceautomatemetierservice> {    @autowired(required = true)   private interfaceautomate ijininterfaceautomate;    @override   public iinterfaceautomatemetierservice getobject() {     return ijininterfaceautomate;   }    @override   public class<?> getobjecttype() {     return iinterfaceautomatemetierservice.class;   }    @override   public boolean issingleton() {     return false;   } 

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i keep getting following error, though i'm using qualifier annotation... idea on i'm doing wrong ? :

no unique bean of type [iinterfaceautomatemetierservice] defined: expected single matching bean found 2: [interfaceautomate, interfaceautomateservicefactory] 

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complete stack trace

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 name 'analysepreparationglobalemetierservice': injection of autowired dependencies failed; nested exception org.springframework.beans.factory.beancreationexception: not autowire field: private dispensation.commun.service.metier.iinterfaceautomatemetierservice dispensation.analysepreparationglobale.service.metier.impl.analysepreparationglobalemetierservice.interfaceautomatemetierservice; nested exception org.springframework.beans.factory.nosuchbeandefinitionexception: no unique bean of type [dispensation.commun.service.metier.iinterfaceautomatemetierservice] defined: expected single matching bean found 2: [interfaceautomate, interfaceautomateservicefactory]     @ org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor.postprocesspropertyvalues(autowiredannotationbeanpostprocessor.java:287)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.populatebean(abstractautowirecapablebeanfactory.java:1106)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.docreatebean(abstractautowirecapablebeanfactory.java:517)     @ org.springframework.beans.factory.support.abstractautowirecapablebeanfactory.createbean(abstractautowirecapablebeanfactory.java:456)     @ org.springframework.beans.factory.support.abstractbeanfactory$1.getobject(abstractbeanfactory.java:294)     @ org.springframework.beans.factory.support.defaultsingletonbeanregistry.getsingleton(defaultsingletonbeanregistry.java:225)     @ org.springframework.beans.factory.support.abstractbeanfactory.dogetbean(abstractbeanfactory.java:291)     @ org.springframework.beans.factory.support.abstractbeanfactory.getbean(abstractbeanfactory.java:193)     @ org.springframework.beans.factory.support.defaultlistablebeanfactory.preinstantiatesingletons(defaultlistablebeanfactory.java:607)     @ org.springframework.context.support.abstractapplicationcontext.finishbeanfactoryinitialization(abstractapplicationcontext.java:925)     @ org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:472)     @ org.springframework.web.context.contextloader.configureandrefreshwebapplicationcontext(contextloader.java:388)     @ org.springframework.web.context.contextloader.initwebapplicationcontext(contextloader.java:293)     @ org.springframework.web.context.contextloaderlistener.contextinitialized(contextloaderlistener.java:111)     @ org.apache.catalina.core.standardcontext.listenerstart(standardcontext.java:4723)     @ org.apache.catalina.core.standardcontext$1.call(standardcontext.java:5226)     @ org.apache.catalina.core.standardcontext$1.call(standardcontext.java:5221)     @ java.util.concurrent.futuretask.run(futuretask.java:262)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615)     @ java.lang.thread.run(thread.java:745) caused by: org.springframework.beans.factory.beancreationexception: not autowire field: private dispensation.commun.service.metier.iinterfaceautomatemetierservice dispensation.analysepreparationglobale.service.metier.impl.analysepreparationglobalemetierservice.interfaceautomatemetierservice; nested exception org.springframework.beans.factory.nosuchbeandefinitionexception: no unique bean of type [dispensation.commun.service.metier.iinterfaceautomatemetierservice] defined: expected single matching bean found 2: [interfaceautomate, interfaceautomateservicefactory]     @ org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor$autowiredfieldelement.inject(autowiredannotationbeanpostprocessor.java:513)     @ org.springframework.beans.factory.annotation.injectionmetadata.inject(injectionmetadata.java:92)     @ org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor.postprocesspropertyvalues(autowiredannotationbeanpostprocessor.java:284)     ... 20 more caused by: org.springframework.beans.factory.nosuchbeandefinitionexception: no unique bean of type [dispensation.commun.service.metier.iinterfaceautomatemetierservice] defined: expected single matching bean found 2: [interfaceautomate, interfaceautomateservicefactory]     @ org.springframework.beans.factory.support.defaultlistablebeanfactory.doresolvedependency(defaultlistablebeanfactory.java:823)     @ org.springframework.beans.factory.support.defaultlistablebeanfactory.resolvedependency(defaultlistablebeanfactory.java:730)     @ org.springframework.beans.factory.annotation.autowiredannotationbeanpostprocessor$autowiredfieldelement.inject(autowiredannotationbeanpostprocessor.java:485)     ... 22 more 

in end, solved problem changing name of factorybean match name of injected field, , removing 1 entry in scanning of project. (could "double scanning" causing trouble ?)

<context:component-scan base-package="dispensation.**.factory.**,dispensation.**.metier.factory.** 

=>

<context:component-scan base-package="dispensation.**.factory.** 

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@service("interfaceautomatemetierservice") public class interfaceautomateservicefactory implements factorybean<iinterfaceautomatemetierservice> { 

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@service public class analysepreparationglobalemetierservice implements ianalysepreparationglobalemetierservice {    @autowired   private iinterfaceautomatemetierservice interfaceautomatemetierservice;