javax.servlet.ServletException: Servlet execution threw an exception org.apache.tomcat.websocket.server.WsFilter.doFilter - spring

Question

I am new in Spring. And i'm stuck with 'HTTP Status 500 - Servlet execution threw an exception'.
Screenshot
Though i have tried looking at every single file still couldn't figure out why is it happening. Below is my code sample.
Controller.
`
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class InController {
#RequestMapping("/")
public String welcome(){
return "Welcome";
}
#RequestMapping("/driver")
public String driver(){
return "Driver";
}
}
waiting-servlet.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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
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-4.2.xsd">
<context:component-scan base-package="main.java">
</context:component-scan>
<mvc:annotation-driven></mvc:annotation-driven>
<bean id="JSPView"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/JSP/"></property>
<property name="suffix" value=".jsp"></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/j2ee" xmlns:web="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" id="WebApp_ID" version="2.4">
<display-name>Archetype Created Web Application</display-name>
<welcome-file-list>
<welcome-file>JSP/Welcome.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description></description>
<display-name>waiting</display-name>
<servlet-name>waiting</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>waiting</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
Pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.tcs</groupId>
<artifactId>Project</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<defaultGoal>install</defaultGoal>
</build>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-binding</artifactId>
<version>1.0.6</version>
</dependency>
<dependency>
<groupId>com.googlecode.wicket-jquery-ui</groupId>
<artifactId>jquery-ui-core</artifactId>
<version>6.2.2</version>
</dependency>
<dependency>
<groupId>cocoon</groupId>
<artifactId>cocoon-ajax</artifactId>
<version>2.1.11</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.2.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
</dependencies>
</project>