Hello,
            I am trying to invoke a method when tomcat server started. I am using Jersey restful web service.
Macen Dependencies:

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-bundle</artifactId>
<version>1.19.2</version>
</dependency>

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
                     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                     http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
                     version="3.1">
                <display-name>FlightAvailabilityPredictor</display-name>
                <servlet>
                    <servlet-name>jersey-serlvet</servlet-name>
                    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
                    <init-param>
                        <param-name>com.sun.jersey.config.property.packages</param-name>
                        <param-value>com.travelport.h2o.availabilitypredictor</param-value>
                    </init-param>
                    <load-on-startup>1</load-on-startup>
                </servlet>

                <servlet-mapping>
                    <servlet-name>jersey-serlvet</servlet-name>
                    <url-pattern>/rest/*</url-pattern>
                </servlet-mapping>

                <listener>
                    <listener-class>
                             com.travelport.h2o.availabilitypredictor.listener.InitializeListner
                    </listener-class>
                </listener>

            </web-app>

package com.travelport.h2o.availabilitypredictor.listener;
        import javax.servlet.ServletContextEvent;
        import javax.servlet.ServletContextListener;
        import javax.servlet.annotation.WebListener;

    @WebListener
        public class InitializeListner implements ServletContextListener {

            @Override
            public final void contextInitialized(final ServletContextEvent sce) {
                // method to invoke
            }

            @Override
            public final void contextDestroyed(final ServletContextEvent sce) {

            }
        }