org.apache.jasper.JasperException: java.lang.ClassNotFoundException:

Hi all I am new in Spring, maven,jsp,Servlet. When I am running my project I am getting this error. please let me know what should I do, I am providing all the details bellow. Thanks in advance

Error org.apache.jasper.JasperException: java.lang.ClassNotFoundException:

POM.XML

<project xmlns="http://ift.tt/IH78KX" xmlns:xsi="http://ift.tt/ra1lAU"
  xsi:schemaLocation="http://ift.tt/IH78KX http://ift.tt/HBk9RF">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.mycompany.app</groupId>
  <artifactId>my-app</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>my-app</name>
  <url>http://ift.tt/19pvvEY;
  
  <properties>
    <java.version>1.7</java.version>
    <spring.version>3.2.13.RELEASE</spring.version>
    <cglib.version>2.2.2</cglib.version>
 </properties> 
   
  <dependencies>
  
  <!-- Spring Core & MVC -->
  
   <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>3.2.13.RELEASE</version>
    </dependency>
 
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>3.2.13.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>3.2.13.RELEASE</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>
    
    <!-- CGLib for @Configuration -->
    <dependency>
        <groupId>cglib</groupId>
        <artifactId>cglib-nodep</artifactId>
        <version>2.1_2</version>
        <scope>runtime</scope>
    </dependency>
    
    <!-- Servlet Specifiaction -->
  
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.0.1</version>
        <scope>provided</scope>
    </dependency>
   <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.1</version>
        <scope>provided</scope>
    </dependency>
    
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency> 
    
    <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-taglibs</artifactId>
            <version>3.0.7.RELEASE</version>
        </dependency>
    
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

Controller class

package net.codejava.spring.controller;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

import net.codejava.spring.dao.ContactDAO;
import net.codejava.spring.model.Contact;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import antlr.collections.List;


public class HomeController {
        
        @Autowired
         private ContactDAO contactDAO;
        
        @RequestMapping(value="/")
        public ModelAndView listContact(ModelAndView model) throws IOException{
            List listContact = (List) contactDAO.list();
            model.addObject("listContact", listContact);
            model.setViewName("home");
         
            return model;
        }
        
        
        @RequestMapping(value = "/newContact", method = RequestMethod.GET)
        public ModelAndView newContact(ModelAndView model) {
            Contact newContact = new Contact();
            model.addObject("contact", newContact);
            model.setViewName("ContactForm");
            return model;
        }
        
        @RequestMapping(value = "/saveContact", method = RequestMethod.POST)
        public ModelAndView saveContact(@ModelAttribute Contact contact) {
            contactDAO.saveOrUpdate(contact);
            return new ModelAndView("redirect:/");
        }
        
        @RequestMapping(value = "/deleteContact", method = RequestMethod.GET)
        public ModelAndView deleteContact(HttpServletRequest request) {
            int contactId = Integer.parseInt(request.getParameter("id"));
            contactDAO.delete(contactId);
            return new ModelAndView("redirect:/");
        }
        
        @RequestMapping(value = "/editContact", method = RequestMethod.GET)
        public ModelAndView editContact(HttpServletRequest request) {
            int contactId = Integer.parseInt(request.getParameter("id"));
            Contact contact = contactDAO.get(contactId);
            ModelAndView model = new ModelAndView("ContactForm");
            model.addObject("contact", contact);
         
            return model;
        }
        

}