SEVERE: Servlet /JAXRS-HelloWorld threw load() exception java.lang.ClassNotFoundException: com.sun.jersey.spi.container.servlet.ServletContainer - eclipse

Question

I read through plenty of posts related to this issue but couldn't get any help .
ERROR
Appreciate if someone can help me out.
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This is how my POM and web looks like . I have tried copying the required war file to C:\appache tomcat 7 but no luck. Even deploying it within the eclipse also gives me the same error.
WEb
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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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.tutorialacademy.rest</groupId>
<artifactId>helloworld</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>helloworld Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<repositories>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.19</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-apache-client</artifactId>
<version>1.19</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.4</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

Answer 1

By the exception, it looks like the com.sun.jersey.spi.container.servlet.ServletContainer class is not available in your classpath.
Note that Jersey 1.x and Jersey 2.x use different package names:
Jersey 1.x: com.sun.jersey
Jersey 2.x: org.glassfish.jersey
So, I understand you are using Jersey 1.x.
Jersey 1.x depencency
To use Jersey 1.x, you need the following dependecy in your pom.xml:
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.19</version>
</dependency>
To read more about Jersey 1.x dependencies, have a look at the documentation.
You can check the latest version of the jersey-server artifactId in the Maven Repository.
Jersey 2.x depencency
If you want to use Jersey 2.x, you have to add the following dependency to your pom.xml:
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<!-- if your container implements Servlet API older than 3.0,
use "jersey-container-servlet-core" -->
<artifactId>jersey-container-servlet</artifactId>
<version>2.22.1</version>
</dependency>
You can check the latest version of the jersey-container-servlet artifactId in the Maven Repository.
Read more about Jersey 2.x dependencies in the documentation.
UPDATE
If you can, I do recommend using Jersey 2.x rather than Jersey 1.x.
To do it, use the following 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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.tutorialacademy.rest</groupId>
<artifactId>helloworld</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>Hello World</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<repositories>
<repository>
<id>maven2-repository.java.net</id>
<name>Java.net Repository for Maven</name>
<url>http://download.java.net/maven/2/</url>
<layout>default</layout>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<!-- if your container implements Servlet API older than 3.0,
use "jersey-container-servlet-core" -->
<artifactId>jersey-container-servlet</artifactId>
<version>2.22.1</version>
</dependency>
</dependencies>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
And the following web.xml:
<web-app 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 http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
</web-app>

Answer 2

If you are trying to make a Web application to provide web service using Jersey library in Tomcat and Eclipse and still getting problem after adding jersey-server.jar in the classpath. You can follow these steps to add dependency on deployment assembly.
Project -> properties -> development assembly -> add -> java build path entries -> maven dependency
This should work.