ContextConfiguration does not seem to load my beans for TestNg testcase - spring

Question

I am new to TestNg. I am trying to test one sample hello world program.
Following is my project structure
Source Package
com.mycompany.mavenproject1 =>HelloWorld.java
Test Package
com.test => NewTestConfig.java & NewTestNGTest.java
Helloworld.java
package com.mycompany.mavenproject1;
public class HelloWorld {
String msg = "test";
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
}
NewTestConfig.java
package com.test;
import com.mycompany.mavenproject1.HelloWorld;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
#Configuration
public class NewTestConfig {
#Bean
public HelloWorld helloWorldBean() {
HelloWorld hw = new HelloWorld();
return hw;
}
}
NewTestNGTest.java
package com.test;
import com.mycompany.mavenproject1.HelloWorld;
import org.springframework.beans.factory.annotation.Autowired;
import org.testng.annotations.AfterClass;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import org.springframework.test.context.ContextConfiguration;
#Test
#ContextConfiguration(classes={ NewTestConfig.class })
public class NewTestNGTest {
#Autowired
HelloWorld hw ;
#Test
public void exampleOfTestNgMaven() {
String s = hw.getMsg();
System.out.println("This is TestNG-Maven Example" + s);
}
#BeforeClass
public static void setUpClass() throws Exception {
}
#AfterClass
public static void tearDownClass() throws Exception {
}
#BeforeMethod
public void setUpMethod() throws Exception {
}
#AfterMethod
public void tearDownMethod() throws Exception {
}
}
My pom.xml looks like below:
<?xml version="1.0" encoding="UTF-8"?>
<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.mycompany</groupId>
<artifactId>mavenproject1</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>mavenproject1</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>7.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
When I try to run the test I get NullpointerException (at hw.getMsg();)
Error stack:
Test set: com.test.NewTestNGTest
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.209 sec <<< FAILURE!
exampleOfTestNgMaven(com.test.NewTestNGTest) Time elapsed: 0.003 sec <<< FAILURE!
java.lang.NullPointerException
at com.test.NewTestNGTest.exampleOfTestNgMaven(NewTestNGTest.java:25)
I tried to run test in debug mode, I always get HelloWorld bean as null. So eventually test fails due to NullPointerException. I tried many other variations such as instead of config class tried using applicationContext.xml but my bean never gets injected.
For last 2 days I am struggling to make simple test pass but unable to figure out what's going wrong. Why my context is not getting loaded for test?
Any help is greatly appreciated.
Thanks
Manisha