Executing a maven 2 plugin task more than once

For one particular project I needed to execute a task defined by a maven2 plugin more than once. I had to dig around maven site for a few hours to finally arrive at the deep-buried Using the executions tag page explaination saying that maven2 supported <executions/> in case you need to run several <execution/> with different configurations. So for saving me the trouble in the future and for you folks, here's an example:

   <plugin>
     <groupId>org.jvnet.jaxb2.maven2</groupId>
     <artifactId>maven-jaxb2-plugin</artifactId>
     <executions>
       <!-- Configuration for packageA -->
       <execution>
         <id>JAXB - packageA</id>
         <goals>
           <goal>generate</goal>
         </goals>
         <configuration>
           <generatePackage>com.mycompany.packageA</generatePackage>
           <generateDirectory>generated-src-packageA</generateDirectory>
           <schemaIncludes>
             <include>xml-schemas/packageA/packageA.xsd</include>
           </schemaIncludes>
         </configuration>
       </execution>

       <!-- Configuration for packageB -->
       <execution>
         <id>JAXB - packageB</id>
         <goals>
           <goal>generate</goal>
         </goals>
         <configuration>
           <generatePackage>com.mycompany.packageB</generatePackage>
           <generateDirectory>generated-src-packageB</generateDirectory>
           <schemaIncludes>
             <include>xml-schemas/packageB/packageB.xsd</include>
           </schemaIncludes>
         </configuration>
       </execution>
     </executions>
  
     <!-- Common JAXB configuration -->
     <configuration>
       <!-- Changes the default schema directory -->
       <schemaDirectory>../xml-schemas-project/</schemaDirectory>
       <extension>true</extension>
     </configuration>
   </plugin>