Spring fails when java splits classes -

i've created spring security configuration class 2 configuration subclasses frontend & backend.

@enablewebsecurity public class securityconfig {      private static authenticationprovider authenticationprovider = new fakeauthenticationprovider();      /**      * frontend security configuration      */     @configuration     @order(2)     public static class frontendsecurityconfiguration extends websecurityconfigureradapter {         @override         protected void configure(httpsecurity http) throws exception {             http.authenticationprovider(authenticationprovider)                 .authorizerequests()                     .antmatchers("/resources/**").permitall()                     .anyrequest()                     .hasrole("user")                     .and()                 .formlogin()                     .loginpage( "/login")                     .permitall()                 .defaultsuccessurl("/", true);          }     }      /**      * backend security configuration      */     @configuration     @order(1)     public static class backendsecurityconfiguration extends websecurityconfigureradapter {         @autowired         private string backendurl;          @override         protected void configure(httpsecurity http) throws exception {             http.antmatcher(backendurl + "**").authenticationprovider(authenticationprovider)                 .authorizerequests()                     .anyrequest()                     .hasrole("admin")                     .and()                 .formlogin()                     .loginpage(backendurl + "login")                     .permitall()                 .defaultsuccessurl(backendurl, true);         }     }  } 

and java compiles 3 class files it: securityconfig$frontendsecurityconfiguration.class securityconfig$backendsecurityconfiguration.class securityconfig.class

15-may-2015 13:38:21.971 warning [http-nio-8082-exec-68] org.springframework.web.context.support.annotationconfigwebapplicationcontext.refresh exception encountered during context initialization - cancelling refresh attempt  org.springframework.beans.factory.beandefinitionstoreexception: failed parse configuration class [com.aplhost.panel.core.config.appconfig]; nested exception org.springframework.context.annotation.conflictingbeandefinitionexception: annotation-specified bean name 'securityconfig.backendsecurityconfiguration' bean class [com.aplhost.panel.core.config.securityconfig$backendsecurityconfiguration] conflicts existing, non-compatible bean definition of same name , class [com.aplhost.panel.core.securityconfig$backendsecurityconfiguration]         @ org.springframework.context.annotation.configurationclassparser.parse(configurationclassparser.java:179)         @ org.springframework.context.annotation.configurationclasspostprocessor.processconfigbeandefinitions(configurationclasspostprocessor.java:306)         @ org.springframework.context.annotation.configurationclasspostprocessor.postprocessbeandefinitionregistry(configurationclasspostprocessor.java:239)         @ org.springframework.context.support.postprocessorregistrationdelegate.invokebeandefinitionregistrypostprocessors(postprocessorregistrationdelegate.java:254)         @ org.springframework.context.support.postprocessorregistrationdelegate.invokebeanfactorypostprocessors(postprocessorregistrationdelegate.java:94)         @ org.springframework.context.support.abstractapplicationcontext.invokebeanfactorypostprocessors(abstractapplicationcontext.java:606)         @ org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:462)         @ org.springframework.web.context.contextloader.configureandrefreshwebapplicationcontext(contextloader.java:403)         @ org.springframework.web.context.contextloader.initwebapplicationcontext(contextloader.java:306)         @ org.springframework.web.context.contextloaderlistener.contextinitialized(contextloaderlistener.java:106)         @ org.apache.catalina.core.standardcontext.listenerstart(standardcontext.java:4727)         @ org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:5167)         @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:150)         @ org.apache.catalina.manager.managerservlet.start(managerservlet.java:1293)         @ org.apache.catalina.manager.htmlmanagerservlet.start(htmlmanagerservlet.java:673)         @ org.apache.catalina.manager.htmlmanagerservlet.dopost(htmlmanagerservlet.java:221)         @ javax.servlet.http.httpservlet.service(httpservlet.java:648)         @ javax.servlet.http.httpservlet.service(httpservlet.java:729)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:291)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.catalina.filters.csrfpreventionfilter.dofilter(csrfpreventionfilter.java:213)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.tomcat.websocket.server.wsfilter.dofilter(wsfilter.java:52)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.catalina.filters.setcharacterencodingfilter.dofilter(setcharacterencodingfilter.java:108)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:219)         @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:106)         @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:614)         @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:142)         @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:79)         @ org.apache.catalina.valves.abstractaccesslogvalve.invoke(abstractaccesslogvalve.java:617)         @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:88)         @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:518)         @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1091)         @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:668)         @ org.apache.tomcat.util.net.nioendpoint$socketprocessor.dorun(nioendpoint.java:1521)         @ org.apache.tomcat.util.net.nioendpoint$socketprocessor.run(nioendpoint.java:1478)         @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)         @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)         @ org.apache.tomcat.util.threads.taskthread$wrappingrunnable.run(taskthread.java:61)         @ java.lang.thread.run(thread.java:745) caused by: org.springframework.context.annotation.conflictingbeandefinitionexception: annotation-specified bean name 'securityconfig.backendsecurityconfiguration' bean class [com.aplhost.panel.core.config.securityconfig$backendsecurityconfiguration] conflicts existing, non-compatible bean definition of same name , class [com.aplhost.panel.core.securityconfig$backendsecurityconfiguration]         @ org.springframework.context.annotation.classpathbeandefinitionscanner.checkcandidate(classpathbeandefinitionscanner.java:320)         @ org.springframework.context.annotation.classpathbeandefinitionscanner.doscan(classpathbeandefinitionscanner.java:259)         @ org.springframework.context.annotation.componentscanannotationparser.parse(componentscanannotationparser.java:140)         @ org.springframework.context.annotation.configurationclassparser.doprocessconfigurationclass(configurationclassparser.java:265)         @ org.springframework.context.annotation.configurationclassparser.processconfigurationclass(configurationclassparser.java:229)         @ org.springframework.context.annotation.configurationclassparser.parse(configurationclassparser.java:196)         @ org.springframework.context.annotation.configurationclassparser.parse(configurationclassparser.java:165)         ... 44 more  15-may-2015 13:38:21.973 severe [http-nio-8082-exec-68] org.springframework.web.context.contextloader.initwebapplicationcontext context initialization failed  org.springframework.beans.factory.beandefinitionstoreexception: failed parse configuration class [com.aplhost.panel.core.config.appconfig]; nested exception org.springframework.context.annotation.conflictingbeandefinitionexception: annotation-specified bean name 'securityconfig.backendsecurityconfiguration' bean class [com.aplhost.panel.core.config.securityconfig$backendsecurityconfiguration] conflicts existing, non-compatible bean definition of same name , class [com.aplhost.panel.core.securityconfig$backendsecurityconfiguration]         @ org.springframework.context.annotation.configurationclassparser.parse(configurationclassparser.java:179)         @ org.springframework.context.annotation.configurationclasspostprocessor.processconfigbeandefinitions(configurationclasspostprocessor.java:306)         @ org.springframework.context.annotation.configurationclasspostprocessor.postprocessbeandefinitionregistry(configurationclasspostprocessor.java:239)         @ org.springframework.context.support.postprocessorregistrationdelegate.invokebeandefinitionregistrypostprocessors(postprocessorregistrationdelegate.java:254)         @ org.springframework.context.support.postprocessorregistrationdelegate.invokebeanfactorypostprocessors(postprocessorregistrationdelegate.java:94)         @ org.springframework.context.support.abstractapplicationcontext.invokebeanfactorypostprocessors(abstractapplicationcontext.java:606)         @ org.springframework.context.support.abstractapplicationcontext.refresh(abstractapplicationcontext.java:462)         @ org.springframework.web.context.contextloader.configureandrefreshwebapplicationcontext(contextloader.java:403)         @ org.springframework.web.context.contextloader.initwebapplicationcontext(contextloader.java:306)         @ org.springframework.web.context.contextloaderlistener.contextinitialized(contextloaderlistener.java:106)         @ org.apache.catalina.core.standardcontext.listenerstart(standardcontext.java:4727)         @ org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:5167)         @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:150)         @ org.apache.catalina.manager.managerservlet.start(managerservlet.java:1293)         @ org.apache.catalina.manager.htmlmanagerservlet.start(htmlmanagerservlet.java:673)         @ org.apache.catalina.manager.htmlmanagerservlet.dopost(htmlmanagerservlet.java:221)         @ javax.servlet.http.httpservlet.service(httpservlet.java:648)         @ javax.servlet.http.httpservlet.service(httpservlet.java:729)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:291)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.catalina.filters.csrfpreventionfilter.dofilter(csrfpreventionfilter.java:213)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.tomcat.websocket.server.wsfilter.dofilter(wsfilter.java:52)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.catalina.filters.setcharacterencodingfilter.dofilter(setcharacterencodingfilter.java:108)         @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)         @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)         @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:219)         @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:106)         @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:614)         @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:142)         @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:79)         @ org.apache.catalina.valves.abstractaccesslogvalve.invoke(abstractaccesslogvalve.java:617)         @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:88)         @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:518)         @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1091)         @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:668)         @ org.apache.tomcat.util.net.nioendpoint$socketprocessor.dorun(nioendpoint.java:1521)         @ org.apache.tomcat.util.net.nioendpoint$socketprocessor.run(nioendpoint.java:1478)         @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)         @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)         @ org.apache.tomcat.util.threads.taskthread$wrappingrunnable.run(taskthread.java:61)         @ java.lang.thread.run(thread.java:745) caused by: org.springframework.context.annotation.conflictingbeandefinitionexception: annotation-specified bean name 'securityconfig.backendsecurityconfiguration' bean class [com.aplhost.panel.core.config.securityconfig$backendsecurityconfiguration] conflicts existing, non-compatible bean definition of same name , class [com.aplhost.panel.core.securityconfig$backendsecurityconfiguration]         @ org.springframework.context.annotation.classpathbeandefinitionscanner.checkcandidate(classpathbeandefinitionscanner.java:320)         @ org.springframework.context.annotation.classpathbeandefinitionscanner.doscan(classpathbeandefinitionscanner.java:259)         @ org.springframework.context.annotation.componentscanannotationparser.parse(componentscanannotationparser.java:140)         @ org.springframework.context.annotation.configurationclassparser.doprocessconfigurationclass(configurationclassparser.java:265)         @ org.springframework.context.annotation.configurationclassparser.processconfigurationclass(configurationclassparser.java:229)         @ org.springframework.context.annotation.configurationclassparser.parse(configurationclassparser.java:196)         @ org.springframework.context.annotation.configurationclassparser.parse(configurationclassparser.java:165)         ... 44 more  15-may-2015 13:38:21.974 severe [http-nio-8082-exec-68] org.apache.catalina.core.standardcontext.startinternal 1 or more listeners failed start. full details found in appropriate container log file 

but eclipse compiles 1 file securityconfig.class , everythng works correctly.

does know how fix it?

it seems have resolved issue. added @configuration annotation top class securityconfig.