Main-Class in MANIFEST.MF in SE's example hello-world

[ericjvandervelden]

Hello,

In the SE example hello-world 's POM file is written

<build>
      <plugins>
         <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
               <archive>
                  <manifest>
                     <mainClass>org.jboss.weld.environment.se.StartMain</mainClass>
                  </manifest>
               </archive>
            </configuration>
         </plugin>
      </plugins>
   </build>

Because of this, there appears a line in MANIFEST.MF,

Main-Class: org.jboss.weld.environment.se.StartMain

Why is this important? What does it do?

Thanks,

Eric J.