HTTP Status 405 - Request method 'POST' not supported error when try to submit login form

I am using spring, spring security. My application have custom login page a jsp page where I am trying to post username, password and in backend I have a controller to capture and authenticate login details. I am using tomcat. Getting the following error when I submit login form.

HTTP Status 405 - Request method 'POST' not supported

BetaAccessController.java

@RequestMapping(value= "/beta/login", method = RequestMethod.GET)
public ModelAndView registerPage(@ModelAttribute("beta_access") BetaAccess beta_access, Model model, BindingResult result) {
    String accesscode = beta_access.getAccesscode();
    ModelAndView mav = new ModelAndView("index");

    mav.addObject("user", new User());
    mav.addObject("temporary_user", new TemporaryUser());

    return mav;
}

index.jsp

<div class="login">
    <form:form modelAttribute="user" id="loginForm" name="loginForm" method="post" action="login">  
      <ul>
          <li>
            <img style="display: none;" src="/images/ajax-loader.gif" id="loading-image-2" alt="Loading..." />
          </li>
          <li>
            <form:input path="emailAddress" type="email" id="emailAddress" name="emailAddress" class="input" placeholder="Enter your email address" /> 
            <form:errors path="emailAddress" cssClass="error" id="emailPassError"/>
          </li>
          <li>
            <form:input path="password"  id="userPassword" name="password" type="password" class="input" placeholder="Enter your password" />
            <h3><a id="sd" href="/user/forgetpassword">forget password?</a></h3>
          </li>
        </ul>
        <input type="submit" value="l" style="width:0px;display:none" id="lreal">
    </form:form>
</div>

LoginController.java

@Controller
public class LoginController {

@Autowired
@Qualifier("authenticationManager")
AuthenticationManager authenticationManager;

@Autowired
SecurityContextRepository repository;

@Autowired
RememberMeServices rememberMeServices;

@Autowired
APIService apiService;

@Autowired
SessionInfoService sessionInfoService;

@RequestMapping(value= "/login", method = RequestMethod.POST)
public ModelAndView login(@Valid @ModelAttribute("user") User user, Model model, BindingResult result, HttpServletRequest request, HttpServletResponse response) {      

    UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(user.getEmailAddress(), user.getPassword());

    try {
        Authentication auth = authenticationManager.authenticate(token);

        SecurityContextHolder.getContext().setAuthentication(auth);
        repository.saveContext(SecurityContextHolder.getContext(), request,
                response);
        rememberMeServices.loginSuccess(request, response, auth);

        String sessionId = apiService.p2logicApiLogin(user.getEmailAddress(), user.getPassword());

        SessionInfo sessionInfo = new SessionInfo(user.getEmailAddress(), sessionId, new Date());

        sessionInfoService.addSessionInfo(sessionInfo);

        return new ModelAndView("redirect:/user/dashboard");   
    } catch (BadCredentialsException ex) {
        //If the password and confirm password don't match      
        result.rejectValue("emailAddress", "error.user", "Please check your password or email!");

        //Send user info back to page
        model.addAttribute("temporary_user", new TemporaryUser());
        model.addAttribute("user", user);

        return new ModelAndView("index");
    } catch (DisabledException ex){
        //If the password and confirm password don't match      
        result.rejectValue("emailAddress", "error.user", "Your account is frozen!");

        //Send user info back to page
        model.addAttribute("temporary_user", new TemporaryUser());
        model.addAttribute("user", user);

        return new ModelAndView("index");
    }
  }
}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://ift.tt/ra1lAU" xmlns="http://ift.tt/nSRXKP" xsi:schemaLocation="http://ift.tt/nSRXKP http://ift.tt/LU8AHS" version="2.5">
<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>
        /WEB-INF/applicationContext.xml
        /WEB-INF/spring-security.xml
  </param-value>
</context-param>

<servlet>
  <servlet-name>appServlet</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/servlet-context.xml</param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
  <servlet-name>appServlet</servlet-name>
  <url-pattern>/</url-pattern>
</servlet-mapping>

<filter>
  <filter-name>hibernateFilter</filter-name>
  <filter-class>org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</filter-class>
</filter>
<filter-mapping>
  <filter-name>hibernateFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

<filter>
  <filter-name>springSecurityFilterChain</filter-name>
  <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
  <filter-name>springSecurityFilterChain</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
  <listener-class>org.springframework.security.web.session.HttpSessionEventPublisher</listener-class>
</listener>

<filter>
  <filter-name>LocaleFilter</filter-name>
  <filter-class>com.p2logic.config.LocaleUrlFilter</filter-class>
</filter>
<filter-mapping>
  <filter-name>LocaleFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

<session-config>
  <session-timeout>15</session-timeout>
</session-config>

<error-page>
  <!-- Define error page to react on Java exception -->
  <exception-type>java.lang.Throwable</exception-type>
  <!-- The location of the resource to display in response to the error will point to the Spring MVC handler method -->
  <location>/error</location>
</error-page>

<error-page>
  <error-code>404</error-code>
  <location>/error</location>
</error-page>

</web-app>

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://ift.tt/GArMu6" xmlns:xsi="http://ift.tt/ra1lAU"
  xmlns:mvc="http://ift.tt/1bHqwjR" xmlns:beans="http://ift.tt/GArMu6"
  xmlns:context="http://ift.tt/GArMu7" xmlns:tx="http://ift.tt/OGfeU2"
  xsi:schemaLocation="http://ift.tt/1bHqwjR http://ift.tt/JWpJWM
    http://ift.tt/GArMu6 http://ift.tt/1jdM0fG
    http://ift.tt/OGfeU2 http://ift.tt/1cKeJ93
    http://ift.tt/GArMu7 http://ift.tt/1bGeTcI">

    <!-- Enable @Controller annotation support -->
    <mvc:annotation-driven />

    <context:annotation-config/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <bean id="viewResolver1" class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
        <property name="order" value="1"/>
        <property name="basename" value="views"/>
    </bean>

    <!-- Scan classpath for annotations (eg: @Service, @Repository etc) -->
    <context:component-scan base-package="com.p2logic"/>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/p2logic_data"/>
        <property name="username" value="root"/>
        <property name="password" value=" "/>
        <property name="validationQuery" value="SELECT 1"/>
    </bean> 

    <!-- Hibernate Session Factory -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation">
            <value>classpath:hibernate.cfg.xml</value>
        </property>
        <property name="packagesToScan">
            <array>
                <value>com.p2logic</value>
            </array>
        </property>
        <property name="hibernateProperties">
            <value>
                hibernate.dialect=org.hibernate.dialect.MySQLDialect
            </value>
        </property>     
    </bean>

    <!-- Hibernate Transaction Manager -->
    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>

    <!-- Activates annotation based transaction management -->
    <tx:annotation-driven transaction-manager="transactionManager"/>  

    <!-- Back to previous URL after logging out  -->
    <bean id="logoutSuccessHandler" 
        class=" com.p2logic.session.CustomLogoutHandler" >
    </bean>

    <!-- Configure the multipart resolver -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    </bean>    

    <!-- locale Resolver configuration-->
    <bean id="localeResolver" class="com.p2logic.config.CustomLocaleResolver"></bean>


    <context:property-placeholder location="classpath:api.properties" order="1" ignore-unresolvable="true"/>
    <context:property-placeholder location="classpath:ftp.properties" order="2" ignore-unresolvable="true"/>
    <context:property-placeholder location="classpath:email.properties" order="3" ignore-unresolvable="true"/>

    <bean id="passwordEncoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"/>

    <bean id="webexpressionHandler" class="org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler" /> 

    <bean id="authoritiesAction" class="com.p2logic.util.AuthoritiesActionImpl" />      

    <bean id="fileActions" class="com.p2logic.util.FileActionsImpl" />   

    <bean id="emailAction" class="com.p2logic.util.EmailActionImpl" />

    <bean id="companyAction" class="com.p2logic.util.CompanyActionImpl" />

    <bean id="proposalAction" class="com.p2logic.util.ProposalActionImpl" />

    <bean id="prospectAction" class="com.p2logic.util.ProspectActionImpl" />

    <bean id="workorderAction" class="com.p2logic.util.WorkOrderActionImpl" />

    <bean id="summaryAction" class="com.p2logic.util.SummaryActionImpl" />

    <bean id="projectAction" class="com.p2logic.util.ProjectActionImpl" />

    <bean id="invoiceAction" class="com.p2logic.util.InvoiceActionImpl" />

    <bean id="extraworkAction" class="com.p2logic.util.ExtraWorkActionImpl" />      

    <bean id="payrollAction" class="com.p2logic.util.PayrollActionImpl" />

    <bean id="registrationAction" class="com.p2logic.util.RegistrationActionImpl" />

    <bean id="importProspectAction" class="com.p2logic.util.ImportProspectActionImpl" />

    <bean id="generalInformationAction" class="com.p2logic.util.GeneralInformationActionImpl" />

    <bean id="pluginAction" class="com.p2logic.util.PluginActionImpl" />

    <bean id="restTemplate" class="org.springframework.web.client.RestTemplate"/>

    <bean id="restTemplateConfig" class="com.p2logic.config.RestTemplateConfig" />
 </beans>

spring-security.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://ift.tt/1c8inpe"
    xmlns:beans="http://ift.tt/GArMu6"
    xmlns:xsi="http://ift.tt/ra1lAU"
    xsi:schemaLocation="http://ift.tt/GArMu6
    http://ift.tt/18sW2ax 
    http://ift.tt/1c8inpe 
    http://ift.tt/1epvZ6L">

    <http pattern="/resources/**" security="none" />

    <http auto-config="true" use-expressions="true">

        <form-login  
            always-use-default-target="true" 
            login-page="/beta/login" 
            default-target-url="/user/dashboard" 
            authentication-failure-url="/"
            username-parameter="username"
            password-parameter="password" 
        />


        <intercept-url pattern="/user/dashboard/**" access="hasRole('ROLE_USER')" />    

        <access-denied-handler error-page="/user/dashboard"/>

        <logout invalidate-session="true" 
                logout-url="/user/logout" 
                delete-cookies="JSESSIONID"
                success-handler-ref="logoutSuccessHandler"/>

        <remember-me key="uniqueAndSecret"/>

        <session-management>
            <concurrency-control max-sessions="1" expired-url="/"/>
        </session-management>  

        <session-management invalid-session-url="/" />

    </http>

   <authentication-manager alias="authenticationManager">
       <authentication-provider>
            <jdbc-user-service data-source-ref="dataSource" 
                users-by-username-query="
                    select email_address,password, enabled 
                    from user where email_address=?" 

                authorities-by-username-query="
                    select u.email_address, ur.authority from user u, authorities ur 
                    where u.user_id = ur.user_id and u.email_address =?  " 
            />  

            <password-encoder ref="passwordEncoder"/>       
       </authentication-provider>
    </authentication-manager>  

</beans:beans>