Conflicting beans of userDetailsService - spring

Question

I am working on a Spring-MVC application with spring-security and I have 2 different types of users who can login, one is from a personal account, and one is the group account.
So basically I want 2 daoAuthenticationMethods.
For both I have implemented the UserDetails and userDetailsService interface. After referring to the post on this I am trying to implement that approach.
The error I am getting is conflicting userDetailsService in the Service layer. I know I cannot use 2 userDetailsService, but if I put something else in the xml's property tab, I get unknown property error. Kindly check the configuration and please tell me what I might be doing wrong.
Error log :
Offending resource: ServletContext resource [/WEB-INF/spring/appServlet/security-applicationContext.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from ServletContext resource [/WEB-INF/spring/appServlet/servlet-context.xml]; nested exception is org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name 'userDetailsService' for bean class [com.journaldev.spring.service.GroupLoginServiceImpl] conflicts with existing, non-compatible bean definition of same name and class [com.journaldev.spring.service.LoginServiceImpl]
at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:70)
at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)
Security-application-context.xml :
<!-- Global Security settings -->
<security:global-method-security pre-post-annotations="enabled" />
<security:http create-session="ifRequired" use-expressions="true" auto-config="true" disable-url-rewriting="true">
<security:form-login login-page="/" default-target-url="/canvas/list"
always-use-default-target="false" authentication-failure-url="/denied.jsp" />
<bean id="springSecurityFilterChain" class="org.springframework.security.web.FilterChainProxy">
<security:filter-chain-map path-type="ant">
<security:filter-chain pattern="/**" filters="authenticationProcessingFilterForPersonal, authenticationProcessingFilterForGroup"/>
</security:filter-chain-map>
</bean>
<bean id="authenticationProcessingFilterForPersonal"
class="org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter">
<property name="authenticationManager" ref="authenticationManagerForPersonal"/>
<property name="filterProcessesUrl" value="/j_spring_security_check_for_person" />
</bean>
<bean id="authenticationProcessingFilterForGroup"
class="org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter">
<property name="authenticationManager" ref="authenticationManagerForGroup"/>
<property name="filterProcessesUrl" value="/j_spring_security_check_for_group"/>
</bean>
<bean id="authenticationManagerForPersonal" class="org.springframework.security.authentication.ProviderManager">
<property name="providers">
<list>
<bean class="org.springframework.security.authentication.dao.DaoAuthenticationProvider">
<property name="userDetailsService">
<ref bean="LoginServiceImpl"/>
</property>
<property name="passwordEncoder" ref="encoder"/>
</bean>
</list>
</property>
</bean>
<bean id="authenticationManagerForGroup" class="org.springframework.security.authentication.ProviderManager">
<property name="providers">
<list>
<bean class="org.springframework.security.authentication.dao.DaoAuthenticationProvider">
<property name="userDetailsService">
<ref bean="GroupLoginServiceImpl"/>
</property>
<property name="passwordEncoder" ref="encoder"/>
</bean>
</list>
</property>
</bean>
<security:authentication-manager alias="authenticationManager">
<security:authentication-provider ref="authenticationManagerForPersonal"/>
<security:authentication-provider ref="authenticationManagerForGroup"/>
</security:authentication-manager>
<beans:bean id="encoder"
class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder">
<beans:constructor-arg name="strength" value="11" />
</beans:bean>
LoginServiceImpl :
// This method is for the personalAccount
#Transactional
#Service("userDetailsService")
public class LoginServiceImpl implements UserDetailsService{
#Autowired private PersonDAO personDAO;
#Autowired private Assembler assembler;
private static final GrantedAuthority USER_AUTH = new SimpleGrantedAuthority("ROLE_USER");
#Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException,DataAccessException {
Person person = personDAO.findPersonByUsername(username.toLowerCase());
if(person == null) { throw new UsernameNotFoundException("Wrong username or password");}
return assembler.buildUserFromUserEntity(person);
}
}
GroupLoginServiceImpl :
#Transactional
#Service("userDetailsService") // I cannot change this, it throws me error when I change this or remove this
public class GroupLoginServiceImpl implements UserDetailsService {
#Autowired
private GroupMembersDAO groupMembersDAO;
#Autowired
private GroupAssembler groupAssembler;
private static final GrantedAuthority USER_AUTH = new SimpleGrantedAuthority("ROLE_GROUP");
#Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException,DataAccessException {
GroupMembers groupMembers = groupMembersDAO.findMemberByUsername(username.toLowerCase());
if(groupMembers == null) { throw new UsernameNotFoundException("Wrong username or password");}
return groupAssembler.buildUserFromUserEntity(groupMembers);
}
}
I can post any other methods too if necessary. kindly let me know what to do. Any pointers are welcome. Thank you.

Answer 1

I think you have misunderstood how to write the XML. The first instance should be something like:
<property name="userDetailsService" ref="userDetailsService">
And the second:
<property name="userDetailsService" ref="groupDetailsService">