Spring Based Java Project - Beans Loading Twice

mvc-dispatcher-servlet.xml

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:mvc="http://www.springframework.org/schema/mvc" 
	xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
         http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<mvc:resources mapping="/resources/**" location="/WEB-INF/resources/"/>

	<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
		<property name="mediaTypes">
			<map>
				<entry key="atom" value="application/atom+xml" />
				<entry key="html" value="text/html" />
				<entry key="json" value="application/json" />
				<entry key="xml" value="application/xml"/>
			</map>
		</property>
		<property name="viewResolvers">
			<list>
				<bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />
				<bean
					class="org.springframework.web.servlet.view.InternalResourceViewResolver">
					<property name="prefix" value="/WEB-INF/pages/" />
					<property name="suffix" value=".jsp" />
				</bean>
			</list>
		</property>
		<property name="defaultViews">
			<list>
				<bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
			</list>
		</property>
	</bean>

</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>scf-webapp</display-name>
  
	<servlet>
		<servlet-name>mvc-dispatcher</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<!-- Looks for the file named mvc-dispatcher-servlet.xml - used to load 
			all spring MVC related items -->
		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>mvc-dispatcher</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:config/webAppEntryPoint-Context.xml</param-value>
	</context-param>
  
  

</web-app>

webAppEntryPoint-Context.xml

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	  xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
 

<context:annotation-config />
	<!-- autoscan all the webapp components -->
	<context:component-scan base-package="com.app.webapp" />


<!-- Load the application configuration file -->
	<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="locations">
			<list>
				<value>classpath:config/properties/app-${ENVIRONMENT}.properties</value>
				<value>classpath:config/properties/database/appDB-${ENVIRONMENT}.properties</value>
	       </list>
       </property>
	</bean>
	
	

</beans>

WebappStartupTasks.java

@SuppressWarnings("rawtypes")
@Component
public class WebappStartupTasks implements ApplicationListener {

    /** Local log variable. **/
    private static final Logger LOG = LoggerFactory.getLogger(WebappStartupTasks.class);





	@Override
    public void onApplicationEvent(ApplicationEvent event) {
        if (event instanceof ContextRefreshedEvent) {
            long startTime = System.currentTimeMillis();
            LOG.info("StartupTasks - Startup Tasks Initiated");

 s   
            
            long endTime = System.currentTimeMillis();
            long totalTime = endTime - startTime;
            LOG.info("StartupTasks - Startup Tasks Completed in {} milliseconds.", totalTime);
        }
    }

}

Couple of suggestions for improvement. Make your application listener generic use ApplicationListener< ContextRefreshedEvent> saves you an if statement and saves the context from calling the listener with a type it doesn't handle.

Use version less xdd so remove -4.0 from the xsd locations , that will make sure you are always using the version belonging to the version of spring you are using.

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
     http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">

Your PropertyPlaceholderConfigurer is best replaced with a <context:property-placeholder /> as this will register the more powerful PropertySourcesPlaceholderConfigurer.

<context:property-placeholder location="classpath:config/properties/app-${ENVIRONMENT}.properties,classpath:config/properties/database/appDB-${ENVIRONMENT}.properties" />

You can remove the <context:annotation-config/> that is already implied by the <context:component-scan />