java - Autowired field receiving null value -

java - Autowired field receiving null value -

in class below, autowire 1 of dao classes (which annotated @repository):

@component public class accountconnectionsignup implements connectionsignup { @autowired private usuariohome accountrepository; @override public string execute(connection<?> connection) { userprofile profile = connection.fetchuserprofile(); usuario business relationship = new usuario(profile.getusername(), profile.getfirstname(), profile.getlastname(), profile.getemail()); accountrepository.persist(account); homecoming profile.getusername(); } }

but when run application, , class needed, facing error:

java.lang.nullpointerexception @ com.webapp.loja.social.accountconnectionsignup.execute(accountconnectionsignup.java:22) @ org.springframework.social.connect.jdbc.jdbcusersconnectionrepository.finduseridswithconnection(jdbcusersconnectionrepository.java:86) @ org.springframework.social.connect.web.providersignincontroller.handlesignin(providersignincontroller.java:260) @ org.springframework.social.connect.web.providersignincontroller.oauth1callback(providersignincontroller.java:196) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:62) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43) @ java.lang.reflect.method.invoke(method.java:483) @ org.springframework.web.method.support.invocablehandlermethod.invoke(invocablehandlermethod.java:215) @ org.springframework.web.method.support.invocablehandlermethod.invokeforrequest(invocablehandlermethod.java:132) @ org.springframework.web.servlet.mvc.method.annotation.servletinvocablehandlermethod.invokeandhandle(servletinvocablehandlermethod.java:104) @ org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.invokehandlemethod(requestmappinghandleradapter.java:749) @ org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.handleinternal(requestmappinghandleradapter.java:689) @ org.springframework.web.servlet.mvc.method.abstracthandlermethodadapter.handle(abstracthandlermethodadapter.java:83) @ org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:938) @ org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:870) @ org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:961) @ org.springframework.web.servlet.frameworkservlet.doget(frameworkservlet.java:852) @ javax.servlet.http.httpservlet.service(httpservlet.java:620) @ org.springframework.web.servlet.frameworkservlet.service(frameworkservlet.java:837) @ javax.servlet.http.httpservlet.service(httpservlet.java:727) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:303) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:208) @ org.apache.tomcat.websocket.server.wsfilter.dofilter(wsfilter.java:52) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:241) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:208) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:330) @ org.springframework.security.web.access.intercept.filtersecurityinterceptor.invoke(filtersecurityinterceptor.java:118) @ org.springframework.security.web.access.intercept.filtersecurityinterceptor.dofilter(filtersecurityinterceptor.java:84) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.access.exceptiontranslationfilter.dofilter(exceptiontranslationfilter.java:113) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.session.sessionmanagementfilter.dofilter(sessionmanagementfilter.java:103) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.anonymousauthenticationfilter.dofilter(anonymousauthenticationfilter.java:113) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.rememberme.remembermeauthenticationfilter.dofilter(remembermeauthenticationfilter.java:139) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.servletapi.securitycontextholderawarerequestfilter.dofilter(securitycontextholderawarerequestfilter.java:154) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.savedrequest.requestcacheawarefilter.dofilter(requestcacheawarefilter.java:45) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:199) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.abstractauthenticationprocessingfilter.dofilter(abstractauthenticationprocessingfilter.java:199) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.authentication.logout.logoutfilter.dofilter(logoutfilter.java:110) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.header.headerwriterfilter.dofilterinternal(headerwriterfilter.java:57) @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:108) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.context.securitycontextpersistencefilter.dofilter(securitycontextpersistencefilter.java:87) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.context.request.async.webasyncmanagerintegrationfilter.dofilterinternal(webasyncmanagerintegrationfilter.java:50) @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:108) @ org.springframework.security.web.filterchainproxy$virtualfilterchain.dofilter(filterchainproxy.java:342) @ org.springframework.security.web.filterchainproxy.dofilterinternal(filterchainproxy.java:192) @ org.springframework.security.web.filterchainproxy.dofilter(filterchainproxy.java:160) @ org.springframework.web.filter.delegatingfilterproxy.invokedelegate(delegatingfilterproxy.java:344) @ org.springframework.web.filter.delegatingfilterproxy.dofilter(delegatingfilterproxy.java:261) @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:241) @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:208) @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:220) @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:122) @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:501) @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:171) @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:103) @ org.apache.catalina.valves.accesslogvalve.invoke(accesslogvalve.java:950) @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:116) @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:408) @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1070) @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:611) @ org.apache.tomcat.util.net.jioendpoint$socketprocessor.run(jioendpoint.java:316) @ 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)

anyone can tell me why field aren't beingness correctly autowired?

it not autowired because spring doesn't have bean of class usuariohome in context;

check if 1) usuariohome bundle package included in scan bundle 2) if usuariohome declared in xml

in log4j can seek switch debug org.springframework , see happend @ start up.

java spring spring-mvc autowired