Spring MVC Cannot initialize context because there is already a root application context present

После правок относительно этого вопроса Ошибка A ServletContext is required to configure default servlet handling при попытке подключить Spring Security, добавления аннотации к классу тестов, проект стал билдиться, но перестал запускаться на сервере, выдавая ошибку:

SEVERE: Exception sending context initialized event to listener instance of class [org.springframework.web.context.ContextLoaderListener]
java.lang.IllegalStateException: Cannot initialize context because there is already a root application context present - check whether you have multiple ContextLoader* definitions in your web.xml!

web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
     xmlns="http://java.sun.com/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee ">
<display-name>Archetype Created Web Application</display-name>
<!-- Spring和mybatis的配置文件 -->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring-mybatis.xml</param-value>
</context-param>
<!-- 编码过滤器 -->
<filter>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <async-supported>true</async-supported>
    <init-param>
        <param-name>encoding</param-name>
        <param-value>UTF-8</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring监听器 -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止Spring内存溢出监听器 -->
<listener>
    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!-- Spring MVC servlet -->
<servlet>
    <servlet-name>SpringMVC</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
    <async-supported>true</async-supported>
</servlet>
<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>/</url-pattern>
    <url-pattern>*.htm</url-pattern>
</servlet-mapping>
<!--<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>*.css</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>*.js</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>*.ico</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>*.png</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>*.jpg</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>SpringMVC</servlet-name>
    <url-pattern>*.htm</url-pattern>
</servlet-mapping>-->
<!--<welcome-file-list>
    <welcome-file>/index.html</welcome-file>
</welcome-file-list>-->
</web-app>

spring-mybatis.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.core.newbie"/>
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location" value="classpath:jdbc.properties"/>
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="${driver}"/>
    <property name="url" value="${url}"/>
    <property name="username" value="${username}"/>
    <property name="password" value="${password}"/>
    <property name="initialSize" value="${initialSize}"/>
    <property name="maxActive" value="${maxActive}"/>
    <property name="maxIdle" value="${maxIdle}"/>
    <property name="minIdle" value="${minIdle}"/>
    <property name="maxWait" value="${maxWait}"/>
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="mapperLocations" value="classpath:mapping/*.xml"/>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.core.newbie.mapper"/>
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"/>
</bean>
</beans>

spring-mvc.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context-3.1.xsd
   http://www.springframework.org/schema/mvc
   http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<context:component-scan base-package="com.core.newbie.controller"/>
<mvc:annotation-driven/>
<!--<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">-->
<!--<property name="messageConverters">-->
<!--<list>-->
<!--<ref bean="mappingJacksonHttpMessageConverter"/>-->
<!--</list>-->
<!--</property>-->
<!--</bean>-->
<!--<mvc:view-controller path="/" view-name="/WEB-INF/index.html"/>-->
<mvc:resources location="/WEB-INF/static/" mapping="/static/**" />
<mvc:resources location="/assets/css/" mapping="/assets/css/**" />
<mvc:resources location="/assets/img/" mapping="/assets/img/**" />
<bean 

UPD: Опытным путем выяснил, что без файла SpringMvcInitializer.java форма логина открывается, но указанные SecurityConfiguration.java доступы почему-то не проходят... Из-за чего изначальная ошибка? И почему не проходят данные?